If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
P5WD2 CPU temp misreads by 10C?
Hi,
I have a P5WD2 (bios 0422) and am trying to get it working properly with a Pentium D 830. I only have a small Windows 2000 install on it currently for testing purposes (as eventually I need to pull out parts from my fully functional, but old, machine). The problem is the temperatures that the motherboard is reporting seems entirely out of control. The CPU temp (at room temp, with stock heatsink+fan) is idling around 65C and goes to 74-75C under load. Mainboard temp doesn't go much higher than 37C (ambient room temp is around 25C). However, it does not appear to be throttling. I ran 2 instances of Folding@Home for 3.5 hours last night (and confirmed they were on both cores), using the ThrottleWatch software, and everything was perfectly stable. Each cycle in Folding took exactly the same amount of time (one process had 10 minutes per step, the other was 12, and those stayed absolutely fine for 3+ hours). That would definitely have slowed down if the computer throttled. The only thing not stock in my system is I am using Arctic Silver 5 instead of the stock Intel thermal pad. I had to take my system into a shop (I had a dead Gigabyte mobo originally that I couldn't troubleshoot as I didn't have another 955X mobo) and they removed the pad. I don't think I used too much AS5 when applying it, but that is a possibility as I haven't used it in years. Intel agreed to send me a new thermal pad. I know the stock pads aren't as good as AS5 in general, and I hate the idea of removing the AS5 (if it's possible everything is fine) but it is something I am considering as I haven't read too many people with temp issues with Pentium 830's (that isn't easily explainable by ambient temps or lack of fans). I am concerned by the time I add my SCSI devices, Atlas 15K drive, etc, that ambient case temps will be a lot higher and I'm going to have issues. The case is an Antec 1040AMG (I believe) tower, with 5 case fans (2 front and 1 side intake, 2 rear exhaust, 1 in the side blowing in). I am also concerned possibly my setup won't throttle due to Windows 2000 (I can't install XP due to the ancient SCSI card I am using to test with). But that doesn't explain why the system won't go above 75C and why Folding never slowed down. My questions: 1. I read some rumblings the P5WD2 is about 10C too high on its CPU readings. If this is true, my temps while high, would seem to be ok. Has anyone else seem "out of control" temps? I would think a 55C idle, 65C load temp is okay for a dual core. Nothing special, but nothing to hold up building the system for. 2. Does Windows 2000 properly report throttling? Would ThrottleWatch see hat? 3. CPU-Z is reporting both cores running at 3ghz. Would throttling cause CPU-Z to show a slower temp? Sorry for the newbie-esque questions, it is just getting annoying that it seems like everything is fine except for me being paranoid about the temps. I know the dual-core Intels are insanely hot,and everything I read says they throttle about 74C, but mine is hitting that and showing no signs of throttling. (and no signs of going higher) Thanks for any help... (please no "should've gotten an AMD", it wasn't an option at the time, too bad it's taken so long to get working parts it ended up I should've waited anyway!) Justin |
#2
|
|||
|
|||
I just realised I put the wrong idle temps, it actually shows as about
68-69C at idle in Windows 2000 (using the Asus Probe software). Which makes it even weirder, why does it only go up 5 degrees to full load? Justin Scott wrote: Hi, I have a P5WD2 (bios 0422) and am trying to get it working properly with a Pentium D 830. I only have a small Windows 2000 install on it currently for testing purposes (as eventually I need to pull out parts from my fully functional, but old, machine). The problem is the temperatures that the motherboard is reporting seems entirely out of control. The CPU temp (at room temp, with stock heatsink+fan) is idling around 65C and goes to 74-75C under load. Mainboard temp doesn't go much higher than 37C (ambient room temp is around 25C). However, it does not appear to be throttling. I ran 2 instances of Folding@Home for 3.5 hours last night (and confirmed they were on both cores), using the ThrottleWatch software, and everything was perfectly stable. Each cycle in Folding took exactly the same amount of time (one process had 10 minutes per step, the other was 12, and those stayed absolutely fine for 3+ hours). That would definitely have slowed down if the computer throttled. The only thing not stock in my system is I am using Arctic Silver 5 instead of the stock Intel thermal pad. I had to take my system into a shop (I had a dead Gigabyte mobo originally that I couldn't troubleshoot as I didn't have another 955X mobo) and they removed the pad. I don't think I used too much AS5 when applying it, but that is a possibility as I haven't used it in years. Intel agreed to send me a new thermal pad. I know the stock pads aren't as good as AS5 in general, and I hate the idea of removing the AS5 (if it's possible everything is fine) but it is something I am considering as I haven't read too many people with temp issues with Pentium 830's (that isn't easily explainable by ambient temps or lack of fans). I am concerned by the time I add my SCSI devices, Atlas 15K drive, etc, that ambient case temps will be a lot higher and I'm going to have issues. The case is an Antec 1040AMG (I believe) tower, with 5 case fans (2 front and 1 side intake, 2 rear exhaust, 1 in the side blowing in). I am also concerned possibly my setup won't throttle due to Windows 2000 (I can't install XP due to the ancient SCSI card I am using to test with). But that doesn't explain why the system won't go above 75C and why Folding never slowed down. My questions: 1. I read some rumblings the P5WD2 is about 10C too high on its CPU readings. If this is true, my temps while high, would seem to be ok. Has anyone else seem "out of control" temps? I would think a 55C idle, 65C load temp is okay for a dual core. Nothing special, but nothing to hold up building the system for. 2. Does Windows 2000 properly report throttling? Would ThrottleWatch see hat? 3. CPU-Z is reporting both cores running at 3ghz. Would throttling cause CPU-Z to show a slower temp? Sorry for the newbie-esque questions, it is just getting annoying that it seems like everything is fine except for me being paranoid about the temps. I know the dual-core Intels are insanely hot,and everything I read says they throttle about 74C, but mine is hitting that and showing no signs of throttling. (and no signs of going higher) Thanks for any help... (please no "should've gotten an AMD", it wasn't an option at the time, too bad it's taken so long to get working parts it ended up I should've waited anyway!) Justin |
#3
|
|||
|
|||
In article , Justin Scott
wrote: I just realised I put the wrong idle temps, it actually shows as about 68-69C at idle in Windows 2000 (using the Asus Probe software). Which makes it even weirder, why does it only go up 5 degrees to full load? First of all, section 5.2 on page 79 will give some background info on your processor. http://www.intel.com/design/pentiumd...hts/307506.htm My first question would be, does "ThrottleWatch" show a status for each core ? The cores do not have to track one another, in terms of behavior, so one could be throttled while the other is not. The load on the cores will seldom be identical. And the fact that your Folding performance is slightly different should hint at that. Page 523 of this Intel architecture doc, also explains the MSR registers. This is currently at version 16 (25366816.pdf). http://www.intel.com/design/pentium4/manuals/253668.htm I guess at this point in time, I would question whether any software utility is tuned well for dual cores. For example, this link popped up in a search, as a way to read MSR registers while in Windows. But in the descriptions, I don't see any evidence this tool knows about dual cores: http://www.eprotekcomputer.com/ While Googling, I noticed that Everest Home Edition (lavalys.com) dumps MSR register 19A, 19B, and 19C, so perhaps you could try Everest and see if it reports throttling. Run it while Folding. I'd be curious if both cores have MSR registers - I'm presuming they do, but haven't run into any info yet that says it works that way. http://groups.google.ca/group/novell...e=source&hl=en Based on physical behavior alone, I'd say there has got to be some throttling going on. Your processor is not a mobile, and only a mobile processor exhibits a tiny temp rise between idle and 100% loading. Are you sure the cooler is clamped down properly ? The AS5 may need a couple of days to "settle in", but in this case, that is not going to help enough to make your situation a usable one. The boxed fan should be running flat out at 38C air temperature, assuming you are not using the motherboard to control the fan. Make sure Q-fan or anything similar is disabled, in order to get as close to 12V applied to the fan as possible. For a new cooler, I'm still waiting to see a review of this one, the Zalman 9500. Looks to be hanging over the top edge of the motherboard, so some clearance between the PSU and motherboard will be required. With some luck, maybe this will blow its exhaust towards the back of the case. http://www.anandtech.com/tradeshows/...spx?i=2434&p=8 HTH, Paul Justin Scott wrote: Hi, I have a P5WD2 (bios 0422) and am trying to get it working properly with a Pentium D 830. I only have a small Windows 2000 install on it currently for testing purposes (as eventually I need to pull out parts from my fully functional, but old, machine). The problem is the temperatures that the motherboard is reporting seems entirely out of control. The CPU temp (at room temp, with stock heatsink+fan) is idling around 65C and goes to 74-75C under load. Mainboard temp doesn't go much higher than 37C (ambient room temp is around 25C). However, it does not appear to be throttling. I ran 2 instances of Folding@Home for 3.5 hours last night (and confirmed they were on both cores), using the ThrottleWatch software, and everything was perfectly stable. Each cycle in Folding took exactly the same amount of time (one process had 10 minutes per step, the other was 12, and those stayed absolutely fine for 3+ hours). That would definitely have slowed down if the computer throttled. The only thing not stock in my system is I am using Arctic Silver 5 instead of the stock Intel thermal pad. I had to take my system into a shop (I had a dead Gigabyte mobo originally that I couldn't troubleshoot as I didn't have another 955X mobo) and they removed the pad. I don't think I used too much AS5 when applying it, but that is a possibility as I haven't used it in years. Intel agreed to send me a new thermal pad. I know the stock pads aren't as good as AS5 in general, and I hate the idea of removing the AS5 (if it's possible everything is fine) but it is something I am considering as I haven't read too many people with temp issues with Pentium 830's (that isn't easily explainable by ambient temps or lack of fans). I am concerned by the time I add my SCSI devices, Atlas 15K drive, etc, that ambient case temps will be a lot higher and I'm going to have issues. The case is an Antec 1040AMG (I believe) tower, with 5 case fans (2 front and 1 side intake, 2 rear exhaust, 1 in the side blowing in). I am also concerned possibly my setup won't throttle due to Windows 2000 (I can't install XP due to the ancient SCSI card I am using to test with). But that doesn't explain why the system won't go above 75C and why Folding never slowed down. My questions: 1. I read some rumblings the P5WD2 is about 10C too high on its CPU readings. If this is true, my temps while high, would seem to be ok. Has anyone else seem "out of control" temps? I would think a 55C idle, 65C load temp is okay for a dual core. Nothing special, but nothing to hold up building the system for. 2. Does Windows 2000 properly report throttling? Would ThrottleWatch see hat? 3. CPU-Z is reporting both cores running at 3ghz. Would throttling cause CPU-Z to show a slower temp? Sorry for the newbie-esque questions, it is just getting annoying that it seems like everything is fine except for me being paranoid about the temps. I know the dual-core Intels are insanely hot,and everything I read says they throttle about 74C, but mine is hitting that and showing no signs of throttling. (and no signs of going higher) Thanks for any help... (please no "should've gotten an AMD", it wasn't an option at the time, too bad it's taken so long to get working parts it ended up I should've waited anyway!) Justin |
#4
|
|||
|
|||
I've had a p5wd2 with an 840 for about 3 weeks now. My idle temp is
anywhere from about 39c to 48c (mostly near 45c) depending on room tempture. My computer is in a second floor bedroom on long island and temps can vary greatly with the weather here, no ac by the way. With both cores 100% loaded my max temp has been between 69c and 71c. I used prime95 torture test to load up the cores. Never once did they throttle. I'm using AS5 just like you. I've used the original pad and AS3 before this with the same/similar temps. Also prior to bios 0422 my second core would never go above 2.8 ghz, even fully loaded. Now both cores are hitting 3.2 ghz under 100% loading. Asus tech support basically jerked me off telling me it was everthing but their mb with regard to this issue when I called them numerious times over this. I even got intel to give me an rma on the 840 over this issue. Two days later 0422 came out and all was fixed. Justin Scott wrote: Hi, I have a P5WD2 (bios 0422) and am trying to get it working properly with a Pentium D 830. I only have a small Windows 2000 install on it currently for testing purposes (as eventually I need to pull out parts from my fully functional, but old, machine). The problem is the temperatures that the motherboard is reporting seems entirely out of control. The CPU temp (at room temp, with stock heatsink+fan) is idling around 65C and goes to 74-75C under load. Mainboard temp doesn't go much higher than 37C (ambient room temp is around 25C). However, it does not appear to be throttling. I ran 2 instances of Folding@Home for 3.5 hours last night (and confirmed they were on both cores), using the ThrottleWatch software, and everything was perfectly stable. Each cycle in Folding took exactly the same amount of time (one process had 10 minutes per step, the other was 12, and those stayed absolutely fine for 3+ hours). That would definitely have slowed down if the computer throttled. The only thing not stock in my system is I am using Arctic Silver 5 instead of the stock Intel thermal pad. I had to take my system into a shop (I had a dead Gigabyte mobo originally that I couldn't troubleshoot as I didn't have another 955X mobo) and they removed the pad. I don't think I used too much AS5 when applying it, but that is a possibility as I haven't used it in years. Intel agreed to send me a new thermal pad. I know the stock pads aren't as good as AS5 in general, and I hate the idea of removing the AS5 (if it's possible everything is fine) but it is something I am considering as I haven't read too many people with temp issues with Pentium 830's (that isn't easily explainable by ambient temps or lack of fans). I am concerned by the time I add my SCSI devices, Atlas 15K drive, etc, that ambient case temps will be a lot higher and I'm going to have issues. The case is an Antec 1040AMG (I believe) tower, with 5 case fans (2 front and 1 side intake, 2 rear exhaust, 1 in the side blowing in). I am also concerned possibly my setup won't throttle due to Windows 2000 (I can't install XP due to the ancient SCSI card I am using to test with). But that doesn't explain why the system won't go above 75C and why Folding never slowed down. My questions: 1. I read some rumblings the P5WD2 is about 10C too high on its CPU readings. If this is true, my temps while high, would seem to be ok. Has anyone else seem "out of control" temps? I would think a 55C idle, 65C load temp is okay for a dual core. Nothing special, but nothing to hold up building the system for. 2. Does Windows 2000 properly report throttling? Would ThrottleWatch see hat? 3. CPU-Z is reporting both cores running at 3ghz. Would throttling cause CPU-Z to show a slower temp? Sorry for the newbie-esque questions, it is just getting annoying that it seems like everything is fine except for me being paranoid about the temps. I know the dual-core Intels are insanely hot,and everything I read says they throttle about 74C, but mine is hitting that and showing no signs of throttling. (and no signs of going higher) Thanks for any help... (please no "should've gotten an AMD", it wasn't an option at the time, too bad it's taken so long to get working parts it ended up I should've waited anyway!) Justin |
#5
|
|||
|
|||
Paul wrote:
In article , Justin Scott wrote: I just realised I put the wrong idle temps, it actually shows as about 68-69C at idle in Windows 2000 (using the Asus Probe software). Which makes it even weirder, why does it only go up 5 degrees to full load? First of all, section 5.2 on page 79 will give some background info on your processor. http://www.intel.com/design/pentiumd...hts/307506.htm My first question would be, does "ThrottleWatch" show a status for each core ? The cores do not have to track one another, in terms of behavior, so one could be throttled while the other is not. The load on the cores will seldom be identical. And the fact that your Folding performance is slightly different should hint at that. Wow, thanks for the really detailed reply. Some of it is a bit over my head to completely understand, but I will have to do some reading and see if it starts making sense (I.e., I am not sure if being able to read MSR registers will help me since I don't know what I am looking at!). I will try some of the other programs you mention. I am not sure if ThrottleWatch reports both cores. It definitely sees 2 processors (independent CPU load graphs). But since I haven't seen any throttling, I don't know if I will see independent throttling graphs. CPU-Z has not shown either core dropping below 3.0ghz, though. (and from what I can tell from reading, it WILL detect that) Folding has different proteins for each instance; so the fact one takes 10 minutes and the other 12 minutes per step doesn't really indicate a problem (just that the second core has a tougher protein to work on). I should try to figure out a way to force them both to do the same work, or find another tool that I can verify they're both doing the exact same work. I am thinking at this point I am going to wait for the Intel thermal pads to arrive (They're another couple days away, thanks to UPS' "you'll see it when you see it" service!). If nothing else, it'll give me a chance to reseat everything and make sure the heatsink is on properly. Although I can't help but think the heat sink is fine; wouldn't temps skyrocket and the system shut down? (that is the most baffling part to me, why even under load the temps only go up 5C and never seem to go higher). Fan is definitely running at full speed (around 3600RPM, I think that's the max, at least from what I've read, I should investigate that more). I really don't want to deal with aftermarket cooling; I don't plan to overclock at all (and part of the reason I went with an 830 instead of 840 was to give myself a little thermal headroom) so I am hoping I can just figure out what is going on. Doug's reponse is interesting. It does seem like some people aren't having issues. Thanks again for your response, I'll report back when I get the chance to test out a bit more. Justin |
#6
|
|||
|
|||
doug wrote:
I've had a p5wd2 with an 840 for about 3 weeks now. My idle temp is anywhere from about 39c to 48c (mostly near 45c) depending on room tempture. My computer is in a second floor bedroom on long island and temps can vary greatly with the weather here, no ac by the way. With both cores 100% loaded my max temp has been between 69c and 71c. I used prime95 torture test to load up the cores. Never once did they throttle. I'm using AS5 just like you. I've used the original pad and AS3 before this with the same/similar temps. Just to clarify, did the AS5 help much at all temp-wise? Or was it basically the same as the stock pad? Like I posted in my other response, I am thinking of just putting on a new Intel thermal pad when it arrives so I can go back to "completely stock" and it gives me a chance to take it apart, clean it again, and remount everything. If the temps don't change too much, the Intel pad would at least give me peace of mind that I am using the right amount. (I have been wondering if I used too much AS5). Like, say, 5C isn't a big deal at this point, if it suddenly went from 69C idle to 50C idle I'd be thrilled! What is strange is I have read a lot of people with 840s with no temp problems, but I haven't seen too many 830 reports one way or the other. I wonder if this IS a Bios issue (i.e., the 830s and 840s report temps slightly differently?). It seems like Asus has been releasing piles of Bioses for this thing. (nothing like buying brand new, untested technology!!) What were you using to see the speeds of the cores? Interesting you had the 2.8ghz issue. I've read a lot about it... glad this bios doesn't have that problem! Thanks for your response! Justin |
#7
|
|||
|
|||
Justin Scott wrote:
Just to clarify, did the AS5 help much at all temp-wise? Or was it basically the same as the stock pad? Like I posted in my other response, A few c perhaps, I'd leave the AS5 on there. Also, when you removed the old pad off the boxed hs did you clean it real good, with alcohol or something similar. I am thinking of just putting on a new Intel thermal pad when it arrives so I can go back to "completely stock" and it gives me a chance to take it apart, clean it again, and remount everything. If the temps don't change too much, the Intel pad would at least give me peace of mind that I am using the right amount. (I have been wondering if I used too much AS5). Like, say, 5C isn't a big deal at this point, if it suddenly went from 69C idle to 50C idle I'd be thrilled! What is strange is I have read a lot of people with 840s with no temp problems, but I haven't seen too many 830 reports one way or the other. I wonder if this IS a Bios issue (i.e., the 830s and 840s report temps slightly differently?). It seems like Asus has been releasing piles of Bioses for this thing. (nothing like buying brand new, untested technology!!) I thought for sure I had temp problems. Idle was high about 48c when I built it, and max was 70c. I thought that swing was huge. Ambient temps have a lot to do with the 'idle' temp. When it was about 60F here last week I got idle temps in the high 30's. Regardless of the idle temp I go up to 69-71c under max loads. What were you using to see the speeds of the cores? Interesting you had the 2.8ghz issue. I've read a lot about it... glad this bios doesn't have that problem! I use CPU-Z to tell me what each core is running at. The mb bios settings runs the two cores at 2.8 ghz while idling. When they get called on to do some work they run at their rated 3.2 ghz speed. You can disable this in bios, but.. then of course you're idle temps will be a bit higher since it's running now at 3.2 ghz all the time. Thanks for your response! Justin |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Why all the concern over heat? | jakesnake66 | Overclocking AMD Processors | 24 | November 6th 04 01:14 AM |
A7N8X Motherboard Low Temperature Sensitivity, CMOS Checksum Error | kony | General | 6 | October 18th 04 05:38 AM |
A7N8X Motherboard Low Temperature Sensitivity, CMOS Checksum Error | kony | Asus Motherboards | 0 | October 10th 04 06:32 AM |
temp? | Toshi1873 | Homebuilt PC's | 1 | April 9th 04 11:18 PM |
Confused over AMD PR rating | Overclocking AMD Processors | 2 | January 28th 04 01:18 AM |