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#1
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Not exactly an overclock yet, but maybe??
I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? |
#2
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Bob F wrote:
Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? Looks like a fun project. Note that it involves damaging the LGA socket by removing two pins, which may affect resale to others, unless you sell mobo+CPU as a set. (I have such a hacked board here, where it's probably worth leaving the current CPU in the socket, and never changing it out :-) ) http://www.delidded.com/lga-771-to-7...sb-tdp-warning I don't think "overclocked" is the word. The chipset is FSB1333, the FSB1600 BCLK is already an overclock for the chipset. Expecting more than that, isn't going to leave you much room to work with. Sure, it might overclock a tiny bit above FSB1600, but how stable will it be ? You'll be getting something close to Q9650 performance, hopefully stable at FSB1600, that's a little hard on the VCore circuit. You have a nice heatpipe on that board, so have some options for cooling VCore if it is getting a bit warm. This is a problem I have with a current Asus board, too-small cooler on VCore, means extra noisy airflow needed. My corrent LGA775 board has a massively overdesigned cooler, and I wish I could swap it with the new board that actually needs a cooler. You might be a tiny bit memory starved with that setup, with the best RAM available for it (say memory bus is 67% efficient or so). And those CPUs, which use two silicon dies and cache coherency protocols that run on the shared FSB, it causes 87% efficiency when all four cores are running flat out. Four cores gives 4 * 0.87 or ~3.5 cores worth of horsepower. Really no worse than some other current day designs (6 core processors starved to 5 core performance). Just a footnote when benchmarking or something. If you previously had a dual core, and did a lot of movie editing, this would be a nice upgrade. If you already have a Q9650, this would be a pointless project. Maybe you'd get a slightly higher Stream benchmark or something. But the board will definitely be worth keeping for a while, as at that performance level, you're well past any reasonable minimum for the bloated OSes of today. ******* Only question I have, is Microcode. Will you be getting an unknown CPU error at startup ? That's the only risky part of stuff like this. My first motherboard, there was a tool you could load a Microcode, into the Microcode cache in the BIOS chip (of the several BIOS makers, like Award, AMI, Phoenix, one of them had this Microcode cache feature). That's how I stopped the BIOS from claiming I was "running a Pentium II" or such like. But if that delidded page claims it works, and you have nothing to lose, it looks like a good project for a rainy day. Just don't expect the FSB to go to infinity and beyond :-) FSB1600 is already technically an overclock, so your headroom is harvested. I'm sure one of the enthusiast web fora, has records kept for how far a P35 Northbridge can be pushed. It would probably take at least a day of thread-reading, to get a good answer for that. Paul |
#3
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Paul wrote:
Bob F wrote: Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? Looks like a fun project. Note that it involves damaging the LGA socket by removing two pins, which may affect resale to others, unless you sell mobo+CPU as a set. (I have such a hacked board here, where it's probably worth leaving the current CPU in the socket, and never changing it out :-) ) http://www.delidded.com/lga-771-to-7...sb-tdp-warning I don't think "overclocked" is the word. The chipset is FSB1333, the FSB1600 BCLK is already an overclock for the chipset. Expecting more than that, isn't going to leave you much room to work with. Sure, it might overclock a tiny bit above FSB1600, but how stable will it be ? You'll be getting something close to Q9650 performance, hopefully stable at FSB1600, that's a little hard on the VCore circuit. You have a nice heatpipe on that board, so have some options for cooling VCore if it is getting a bit warm. This is a problem I have with a current Asus board, too-small cooler on VCore, means extra noisy airflow needed. My corrent LGA775 board has a massively overdesigned cooler, and I wish I could swap it with the new board that actually needs a cooler. You might be a tiny bit memory starved with that setup, with the best RAM available for it (say memory bus is 67% efficient or so). And those CPUs, which use two silicon dies and cache coherency protocols that run on the shared FSB, it causes 87% efficiency when all four cores are running flat out. Four cores gives 4 * 0.87 or ~3.5 cores worth of horsepower. Really no worse than some other current day designs (6 core processors starved to 5 core performance). Just a footnote when benchmarking or something. If you previously had a dual core, and did a lot of movie editing, this would be a nice upgrade. If you already have a Q9650, this would be a pointless project. Maybe you'd get a slightly higher Stream benchmark or something. But the board will definitely be worth keeping for a while, as at that performance level, you're well past any reasonable minimum for the bloated OSes of today. ******* Only question I have, is Microcode. Will you be getting an unknown CPU error at startup ? That's the only risky part of stuff like this. My first motherboard, there was a tool you could load a Microcode, into the Microcode cache in the BIOS chip (of the several BIOS makers, like Award, AMI, Phoenix, one of them had this Microcode cache feature). That's how I stopped the BIOS from claiming I was "running a Pentium II" or such like. But if that delidded page claims it works, and you have nothing to lose, it looks like a good project for a rainy day. Just don't expect the FSB to go to infinity and beyond :-) FSB1600 is already technically an overclock, so your headroom is harvested. I'm sure one of the enthusiast web fora, has records kept for how far a P35 Northbridge can be pushed. It would probably take at least a day of thread-reading, to get a good answer for that. Paul The current processor is a Q8200. Do you think the E5472 would 'feel' much faster? |
#4
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Bob F wrote:
Paul wrote: Bob F wrote: Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? Looks like a fun project. Note that it involves damaging the LGA socket by removing two pins, which may affect resale to others, unless you sell mobo+CPU as a set. (I have such a hacked board here, where it's probably worth leaving the current CPU in the socket, and never changing it out :-) ) http://www.delidded.com/lga-771-to-7...sb-tdp-warning I don't think "overclocked" is the word. The chipset is FSB1333, the FSB1600 BCLK is already an overclock for the chipset. Expecting more than that, isn't going to leave you much room to work with. Sure, it might overclock a tiny bit above FSB1600, but how stable will it be ? You'll be getting something close to Q9650 performance, hopefully stable at FSB1600, that's a little hard on the VCore circuit. You have a nice heatpipe on that board, so have some options for cooling VCore if it is getting a bit warm. This is a problem I have with a current Asus board, too-small cooler on VCore, means extra noisy airflow needed. My corrent LGA775 board has a massively overdesigned cooler, and I wish I could swap it with the new board that actually needs a cooler. You might be a tiny bit memory starved with that setup, with the best RAM available for it (say memory bus is 67% efficient or so). And those CPUs, which use two silicon dies and cache coherency protocols that run on the shared FSB, it causes 87% efficiency when all four cores are running flat out. Four cores gives 4 * 0.87 or ~3.5 cores worth of horsepower. Really no worse than some other current day designs (6 core processors starved to 5 core performance). Just a footnote when benchmarking or something. If you previously had a dual core, and did a lot of movie editing, this would be a nice upgrade. If you already have a Q9650, this would be a pointless project. Maybe you'd get a slightly higher Stream benchmark or something. But the board will definitely be worth keeping for a while, as at that performance level, you're well past any reasonable minimum for the bloated OSes of today. ******* Only question I have, is Microcode. Will you be getting an unknown CPU error at startup ? That's the only risky part of stuff like this. My first motherboard, there was a tool you could load a Microcode, into the Microcode cache in the BIOS chip (of the several BIOS makers, like Award, AMI, Phoenix, one of them had this Microcode cache feature). That's how I stopped the BIOS from claiming I was "running a Pentium II" or such like. But if that delidded page claims it works, and you have nothing to lose, it looks like a good project for a rainy day. Just don't expect the FSB to go to infinity and beyond :-) FSB1600 is already technically an overclock, so your headroom is harvested. I'm sure one of the enthusiast web fora, has records kept for how far a P35 Northbridge can be pushed. It would probably take at least a day of thread-reading, to get a good answer for that. Paul The current processor is a Q8200. Do you think the E5472 would 'feel' much faster? You would be going from 2.33Ghz quad to 3Ghz quad. I have a 2.6Ghz dual and a 3.0GHz dual system here, and in casual usage, can't tell the difference. Since the processors had different caches, and different speed RAM, I could see a significant difference when running 7ZIP compression. But when surfing, they looked relatively the same. Expect better movie render times, but surfing, maybe not an earth shattering experience. You could even try your hand at overclocking the 8200. I've done that on some systems here, as an A:B test. To see whether overclocking was worth it. On a gaming system, it was worth doing. On a very weak system with a single core processor, the chipset was hopelessly bottlenecked, and a faster processor was a waste of time. I turned it back down to nominal. I have a new machine on the kitchen table, in test mode. (The parts have seven day no-questions return policy.) Surfing, the box doesn't feel any faster. But when I run 7ZIP on real files, the new system is 6.7x faster. It was compressing at 23MB/sec. I expect some other content trials to weigh in at 4.5 to 5x or so. But the first semi-uncontrolled test was impressive. But so was the power consumption. 12V * 13A at Vcore input, or 156W just for the processor component. And the Vcore regulator was too hot to touch (not a good sign if you wanted to overclock some day). After running Prime95 overnight, the kitchen was warm. It's one of those "be careful what you wish for" things. Has its plusses and minuses. If you edit movies and change movie formats, it could be worth your effort. Or gaming with some heavy-weight titles and $250 video cards. Just OCing the 8200 might be as much fun. Paul |
#5
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Paul wrote:
Bob F wrote: Paul wrote: Bob F wrote: Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? Looks like a fun project. Note that it involves damaging the LGA socket by removing two pins, which may affect resale to others, unless you sell mobo+CPU as a set. (I have such a hacked board here, where it's probably worth leaving the current CPU in the socket, and never changing it out :-) ) http://www.delidded.com/lga-771-to-7...sb-tdp-warning I don't think "overclocked" is the word. The chipset is FSB1333, the FSB1600 BCLK is already an overclock for the chipset. Expecting more than that, isn't going to leave you much room to work with. Sure, it might overclock a tiny bit above FSB1600, but how stable will it be ? You'll be getting something close to Q9650 performance, hopefully stable at FSB1600, that's a little hard on the VCore circuit. You have a nice heatpipe on that board, so have some options for cooling VCore if it is getting a bit warm. This is a problem I have with a current Asus board, too-small cooler on VCore, means extra noisy airflow needed. My corrent LGA775 board has a massively overdesigned cooler, and I wish I could swap it with the new board that actually needs a cooler. You might be a tiny bit memory starved with that setup, with the best RAM available for it (say memory bus is 67% efficient or so). And those CPUs, which use two silicon dies and cache coherency protocols that run on the shared FSB, it causes 87% efficiency when all four cores are running flat out. Four cores gives 4 * 0.87 or ~3.5 cores worth of horsepower. Really no worse than some other current day designs (6 core processors starved to 5 core performance). Just a footnote when benchmarking or something. If you previously had a dual core, and did a lot of movie editing, this would be a nice upgrade. If you already have a Q9650, this would be a pointless project. Maybe you'd get a slightly higher Stream benchmark or something. But the board will definitely be worth keeping for a while, as at that performance level, you're well past any reasonable minimum for the bloated OSes of today. ******* Only question I have, is Microcode. Will you be getting an unknown CPU error at startup ? That's the only risky part of stuff like this. My first motherboard, there was a tool you could load a Microcode, into the Microcode cache in the BIOS chip (of the several BIOS makers, like Award, AMI, Phoenix, one of them had this Microcode cache feature). That's how I stopped the BIOS from claiming I was "running a Pentium II" or such like. But if that delidded page claims it works, and you have nothing to lose, it looks like a good project for a rainy day. Just don't expect the FSB to go to infinity and beyond :-) FSB1600 is already technically an overclock, so your headroom is harvested. I'm sure one of the enthusiast web fora, has records kept for how far a P35 Northbridge can be pushed. It would probably take at least a day of thread-reading, to get a good answer for that. Paul The current processor is a Q8200. Do you think the E5472 would 'feel' much faster? You would be going from 2.33Ghz quad to 3Ghz quad. I have a 2.6Ghz dual and a 3.0GHz dual system here, and in casual usage, can't tell the difference. Since the processors had different caches, and different speed RAM, I could see a significant difference when running 7ZIP compression. But when surfing, they looked relatively the same. Expect better movie render times, but surfing, maybe not an earth shattering experience. You could even try your hand at overclocking the 8200. I've done that on some systems here, as an A:B test. To see whether overclocking was worth it. On a gaming system, it was worth doing. On a very weak system with a single core processor, the chipset was hopelessly bottlenecked, and a faster processor was a waste of time. I turned it back down to nominal. I have a new machine on the kitchen table, in test mode. (The parts have seven day no-questions return policy.) Surfing, the box doesn't feel any faster. But when I run 7ZIP on real files, the new system is 6.7x faster. It was compressing at 23MB/sec. I expect some other content trials to weigh in at 4.5 to 5x or so. But the first semi-uncontrolled test was impressive. But so was the power consumption. 12V * 13A at Vcore input, or 156W just for the processor component. And the Vcore regulator was too hot to touch (not a good sign if you wanted to overclock some day). After running Prime95 overnight, the kitchen was warm. It's one of those "be careful what you wish for" things. Has its plusses and minuses. If you edit movies and change movie formats, it could be worth your effort. Or gaming with some heavy-weight titles and $250 video cards. Just OCing the 8200 might be as much fun. Paul I got the E5472 and the 771 to 775 converters, and inserted the modified E5472 into an Abit IP35 Pro I happen to have on the bench currently, after updating the bios to the latest ver 18 from 14. I had found several cases of overclocking that board to well above FSB 1600, and thought it was worth trying. It does run, but will not boot to memtest86+ and any memory clock over 272 MHz. Every time I boot to Bios and set the clock higher than 272( even 275), when the processor reboots after the bios change, it stops a second time, and ends up back at 272 by the time it gets to memtest. This confuses me, because the processor should run at 400 by spec. Is this likely a microcode problem? I read that the Ver 18 Bios added the "E0" processors, and elsewhere that the E5472 was an E0, so I was hoping this would work. Time to research modifying Bios with new microcode, I suspect. |
#6
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Bob F wrote:
Paul wrote: Bob F wrote: Paul wrote: Bob F wrote: Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? Looks like a fun project. Note that it involves damaging the LGA socket by removing two pins, which may affect resale to others, unless you sell mobo+CPU as a set. (I have such a hacked board here, where it's probably worth leaving the current CPU in the socket, and never changing it out :-) ) http://www.delidded.com/lga-771-to-7...sb-tdp-warning I don't think "overclocked" is the word. The chipset is FSB1333, the FSB1600 BCLK is already an overclock for the chipset. Expecting more than that, isn't going to leave you much room to work with. Sure, it might overclock a tiny bit above FSB1600, but how stable will it be ? You'll be getting something close to Q9650 performance, hopefully stable at FSB1600, that's a little hard on the VCore circuit. You have a nice heatpipe on that board, so have some options for cooling VCore if it is getting a bit warm. This is a problem I have with a current Asus board, too-small cooler on VCore, means extra noisy airflow needed. My corrent LGA775 board has a massively overdesigned cooler, and I wish I could swap it with the new board that actually needs a cooler. You might be a tiny bit memory starved with that setup, with the best RAM available for it (say memory bus is 67% efficient or so). And those CPUs, which use two silicon dies and cache coherency protocols that run on the shared FSB, it causes 87% efficiency when all four cores are running flat out. Four cores gives 4 * 0.87 or ~3.5 cores worth of horsepower. Really no worse than some other current day designs (6 core processors starved to 5 core performance). Just a footnote when benchmarking or something. If you previously had a dual core, and did a lot of movie editing, this would be a nice upgrade. If you already have a Q9650, this would be a pointless project. Maybe you'd get a slightly higher Stream benchmark or something. But the board will definitely be worth keeping for a while, as at that performance level, you're well past any reasonable minimum for the bloated OSes of today. ******* Only question I have, is Microcode. Will you be getting an unknown CPU error at startup ? That's the only risky part of stuff like this. My first motherboard, there was a tool you could load a Microcode, into the Microcode cache in the BIOS chip (of the several BIOS makers, like Award, AMI, Phoenix, one of them had this Microcode cache feature). That's how I stopped the BIOS from claiming I was "running a Pentium II" or such like. But if that delidded page claims it works, and you have nothing to lose, it looks like a good project for a rainy day. Just don't expect the FSB to go to infinity and beyond :-) FSB1600 is already technically an overclock, so your headroom is harvested. I'm sure one of the enthusiast web fora, has records kept for how far a P35 Northbridge can be pushed. It would probably take at least a day of thread-reading, to get a good answer for that. Paul The current processor is a Q8200. Do you think the E5472 would 'feel' much faster? You would be going from 2.33Ghz quad to 3Ghz quad. I have a 2.6Ghz dual and a 3.0GHz dual system here, and in casual usage, can't tell the difference. Since the processors had different caches, and different speed RAM, I could see a significant difference when running 7ZIP compression. But when surfing, they looked relatively the same. Expect better movie render times, but surfing, maybe not an earth shattering experience. You could even try your hand at overclocking the 8200. I've done that on some systems here, as an A:B test. To see whether overclocking was worth it. On a gaming system, it was worth doing. On a very weak system with a single core processor, the chipset was hopelessly bottlenecked, and a faster processor was a waste of time. I turned it back down to nominal. I have a new machine on the kitchen table, in test mode. (The parts have seven day no-questions return policy.) Surfing, the box doesn't feel any faster. But when I run 7ZIP on real files, the new system is 6.7x faster. It was compressing at 23MB/sec. I expect some other content trials to weigh in at 4.5 to 5x or so. But the first semi-uncontrolled test was impressive. But so was the power consumption. 12V * 13A at Vcore input, or 156W just for the processor component. And the Vcore regulator was too hot to touch (not a good sign if you wanted to overclock some day). After running Prime95 overnight, the kitchen was warm. It's one of those "be careful what you wish for" things. Has its plusses and minuses. If you edit movies and change movie formats, it could be worth your effort. Or gaming with some heavy-weight titles and $250 video cards. Just OCing the 8200 might be as much fun. Paul I got the E5472 and the 771 to 775 converters, and inserted the modified E5472 into an Abit IP35 Pro I happen to have on the bench currently, after updating the bios to the latest ver 18 from 14. I had found several cases of overclocking that board to well above FSB 1600, and thought it was worth trying. It does run, but will not boot to memtest86+ and any memory clock over 272 MHz. Every time I boot to Bios and set the clock higher than 272( even 275), when the processor reboots after the bios change, it stops a second time, and ends up back at 272 by the time it gets to memtest. This confuses me, because the processor should run at 400 by spec. Is this likely a microcode problem? I read that the Ver 18 Bios added the "E0" processors, and elsewhere that the E5472 was an E0, so I was hoping this would work. Time to research modifying Bios with new microcode, I suspect. Further testing: I built a modified bios with microcode including the zeon 54xx processors. Using that, no change. I cannot change the "external" clock or multiplier. Every change to these goes through the double boot, and ends up at 272 and 7.5, whether I change them higher or lower. Looking at it after changing the multiplier to 6.0, the bios shows it at 7.0 afer reboot, with the estimated CPU clock of 1904 (And DRAM speed of DDR2-652). but when I get to memtest86+, that shows FSB 272 and 2040 MHz at the processor (7.5 multiplier), and memtest86+ shows the memory SPD as 1024 MB DDR2-400 - Corsair CM2X1024-6400C4 for both slots, and the Settings: RAM : 408MHz (DDR816)/CAS: 5-5-5-18 / Dual Channel. I am again confused about the RAM naming conventions and ram speed relation to FSB. Or maybe Memtest86+ is just confused. Interestingly, when the board boots, it shows the CPUID as 676 rev 0F instead of the 10676 Rev 10F values I supposedly put into the microcode. This double boot problem seems to be a regular problem for this and other Abit and other P35 motherboards. |
#7
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Bob F wrote:
Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? I finally got around to trying this processor on the P5K Premium after my problems on the Abit IP35 Pro. I modded the ASUS AMI bios using the following: http://www.delidded.com/how-to-updat...e-in-ami-bios/ Booted it up to bios, reset to default, rebooted to windows. Windows runs for awhile, then crashes. That's way further than I got with the Abit board. Speedfan seems to display temps about 15C below the real temp displayed by coretemp on the E5472. It was right on with my Q8200. Temps, still using the stock Intel heatsink, seem to be higher than they should be, so maybe that is why it crashes. The E5472 seems to have a max temp spec of 75C. Speedfan was showing temps in the mid 60's, so with the 15C offset, maybe too high. The E5472 is supposedly 80W max compared to the Q8200 at 95, so I'm a bit surprised. They seem to both idle around 50C, compensating for the speedfan errors on the E5472, with speedfan controlling the CPU fan speed according to temp. I thought these newer processors were suppost to slow down if they get too hot, rather than just crashing. Could it be a memory error? The DDR2-800 memory should be able to handle this speed, right? ASUS claims this board is good to FSB 1600, which I understand matches the DDR2-800 memory I've got the Q8200 back in now, as this is my HTPC machine, so I don't want it crashing, but will do more playing with the E5472 when I have the opportunity. I'd appreciate opinions and suggestions. |
#8
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Bob F wrote:
Bob F wrote: Not exactly an overclock yet, but maybe?? I am considering buying a used E5472 processor to use in this P5K Premium board with a 771 to 775 adapter sticker. My memory is a pair of 2GB PC2-6400 samsung M3 78T5663EH3-cf7. This processor has a 1600 MHz FSB. The motherboard seems to be speced for 1600 FSB. Does anyone have any knowledge or opinions about this kind of project? Is it likely to work? Will it overclock? I finally got around to trying this processor on the P5K Premium after my problems on the Abit IP35 Pro. I modded the ASUS AMI bios using the following: http://www.delidded.com/how-to-updat...e-in-ami-bios/ Booted it up to bios, reset to default, rebooted to windows. Windows runs for awhile, then crashes. That's way further than I got with the Abit board. Speedfan seems to display temps about 15C below the real temp displayed by coretemp on the E5472. It was right on with my Q8200. Temps, still using the stock Intel heatsink, seem to be higher than they should be, so maybe that is why it crashes. The E5472 seems to have a max temp spec of 75C. Speedfan was showing temps in the mid 60's, so with the 15C offset, maybe too high. The E5472 is supposedly 80W max compared to the Q8200 at 95, so I'm a bit surprised. They seem to both idle around 50C, compensating for the speedfan errors on the E5472, with speedfan controlling the CPU fan speed according to temp. I thought these newer processors were suppost to slow down if they get too hot, rather than just crashing. Could it be a memory error? The DDR2-800 memory should be able to handle this speed, right? ASUS claims this board is good to FSB 1600, which I understand matches the DDR2-800 memory I've got the Q8200 back in now, as this is my HTPC machine, so I don't want it crashing, but will do more playing with the E5472 when I have the opportunity. I'd appreciate opinions and suggestions. The processor should throttle if it gets too hot. And if it gets 20C above the throttle temp, the whole computer shuts off (known as THERMTRIP). ******* So, we need an excuse for why it would get hot... 1) Heatsink isn't sitting flat on the CPU. Or the TIM underneath the lid is defective - highly unlikely on the LGA775 ones, as they used low temperature solder and the lid s soldered to the silicon die. It's one of the best TIMs there is (in terms of not being defective). Modern processors, like the very latest Haswell, have switched back to "cookie dough" style internal thermal interface material. Some flavors of cookie dough, are not uniform from one section to another. Or even have voids in them. Intel switched from the low temperature solder (so they claim), because the low temperature solder is a "conflict mineral". I think they stopped using it, to boost the profit margin :-) Solder is more expensive than the cookie dough they use. 2) Not enough thermal paste or too much thermal paste between CPU and HSF. 3) VCore higher than intended (shouldn't happen on modern CPUs). My LGA775 processor, I think there is a register inside the CPU which is "range checked". The register is loaded with a number, that drives the VID pins. The only way to overvolt, is by using the offset pin on the VCore switching regulator. On my Asrock board, that's the pin I had to do a mod on, to get some VCore boost for overclocking. The LGA775 I'm typing this on, has proper BIOS-inspired offset pin overvolting, if I wanted to overclock. No mod is necessary on this motherboard. There was a time, when the BIOS could mis-interpret the CPU type, and by using VID override, pump the wrong voltage into it. Your board is modern enough to not be doing that. Only if you entered the BIOS and intentionally boosted above the range-checked value, could you warm up that CPU. (Some BIOS, display the VCore value field in RED, if it's set really high.) 4) The CPU can be overclocked by increasing BCLK. You would use CPU-Z or similar, to verify stuff like that. If Intel EIST (SpeedStep) is disabled, the multiplier stays at the high value all the time, which makes things a bit warmer. There is certainly a history of this sort of funny business, but it's the era of the hardware that suggests nothing nefarious is going on. So about all you can do, is take a lap through the BIOS settings, later, review with CPU-Z, to see if anything is dialed too high. On my new board, I got off to a bad start, when the fan was spinning at the wrong speed. Turned out the BIOS defaulted to "really quiet fan settings". I had to disable fan control entirely, to get decent cooling. I was shocked at the time, that I was getting "low fan speed" warnings in the BIOS. When I thought they'd solved those problems years ago. I used to have older systems here, that would start whining (and stop booting), fi the RPMs of the CPU fan were below 1800 RPM. My new board might have been running the fan at 1200 RPM and I'm getting a warning. I guess I'm happy I got the warning, because it did get me to look at the settings. But I'n not happy with the default behavior of the fan control. "Aggressively slow." Now, my CPU runs cool as can be, even when (measured value) it is burning 156 watts. The worrying part, is the VCore regulator is too hot to touch. I had to fit an extra fan next to Vcore to bring it into range. VCore will still be hot, right at each MOSFET, but the puny fins on the Vcore heatsink are no longer scalding hot. If MOSFETs get too hot, the channel resistance goes up (potential for thermal runaway). Paul |
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
Once upon a time on usenet Paul wrote:
[snip] So, we need an excuse for why it would get hot... 1) Heatsink isn't sitting flat on the CPU. Or the TIM underneath the lid is defective - highly unlikely on the LGA775 ones, as they used low temperature solder and the lid s soldered to the silicon die. It's one of the best TIMs there is (in terms of not being defective). Modern processors, like the very latest Haswell, have switched back to "cookie dough" style internal thermal interface material. Some flavors of cookie dough, are not uniform from one section to another. Or even have voids in them. Intel switched from the low temperature solder (so they claim), because the low temperature solder is a "conflict mineral". I think they stopped using it, to boost the profit margin :-) Solder is more expensive than the cookie dough they use. This is really interesting thanks Paul. (I stopped reading tech / hardware news / sites etc a while back as my financial situation went even more downhill and reading about the latest stuff made me miss not having even close to 'cutting edge' tech any more. Hi, my name's Shaun and I'm a hardware junkie....) I've got a socket 775 E7300 that's always had one core running around 15º C hotter than the other. I spent quite some time messing with TIM, bought an overkill cooler and even lapped the IHS and it made no difference. In the end I put it down to bad TIM between IHS and die. I tried to remove the IHS (like I used to with Tualatins when I was O/Cing them) but it didn't move with as much force as I cared to exert trying. Now I know why. Cheers, -- Shaun. "Humans will have advanced a long, long, way when religious belief has a cozy little classification in the DSM." David Melville (in r.a.s.f1) |
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Asus P5K Premium with Xeon E5472 and 771 to 775 adapter sticker??
~misfit~ wrote:
Once upon a time on usenet Paul wrote: [snip] So, we need an excuse for why it would get hot... 1) Heatsink isn't sitting flat on the CPU. Or the TIM underneath the lid is defective - highly unlikely on the LGA775 ones, as they used low temperature solder and the lid s soldered to the silicon die. It's one of the best TIMs there is (in terms of not being defective). Modern processors, like the very latest Haswell, have switched back to "cookie dough" style internal thermal interface material. Some flavors of cookie dough, are not uniform from one section to another. Or even have voids in them. Intel switched from the low temperature solder (so they claim), because the low temperature solder is a "conflict mineral". I think they stopped using it, to boost the profit margin :-) Solder is more expensive than the cookie dough they use. This is really interesting thanks Paul. (I stopped reading tech / hardware news / sites etc a while back as my financial situation went even more downhill and reading about the latest stuff made me miss not having even close to 'cutting edge' tech any more. Hi, my name's Shaun and I'm a hardware junkie....) I've got a socket 775 E7300 that's always had one core running around 15º C hotter than the other. I spent quite some time messing with TIM, bought an overkill cooler and even lapped the IHS and it made no difference. In the end I put it down to bad TIM between IHS and die. I tried to remove the IHS (like I used to with Tualatins when I was O/Cing them) but it didn't move with as much force as I cared to exert trying. Now I know why. Cheers, One of the enthusiast sites showed how the users there remove them. This is an example. http://www.overclock.net/t/305443/ih...-and-the-facts "The solder Intel uses roughly melts at 80-90c so it could take a while." If that were true, boiling water would remove it :-) http://www.legitreviews.com/intel-ih...775-cpus_402/2 "the extra solder on the core was scraped off using a plastic credit card" "The system would power on, but sadly it wouldn’t post." Just a small failure rate problem. Good if you start with a bucket full of processors. I like the lapping job they did on the lid in the second article. They claim it only takes 20 minutes to do that, but if I was doing it, I'd need to start with the belt sander, to be able to finish off with 2500 grit in 20 minutes :-) Paul |
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