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#1
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Is this safe?
I tried an OC which resulted in my DRAM at 463Mhz, which was not
stable http://i32.tinypic.com/346mgdl.jpg So now I am at 375Mhz http://i32.tinypic.com/29u4w8.png Does it look ok? I am having a bit of trouble realising what speed my RAM is good for. I thought CPU-z used to tell me what each stick was (I have 2) but it doesn't seem to any more. Please share your knowledge! |
#2
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Is this safe?
On 25 Jan, 09:02, bornfree wrote:
I tried an OC which resulted in my DRAM at 463Mhz, which was not stablehttp://i32.tinypic.com/346mgdl.jpg So now I am at 375Mhzhttp://i32.tinypic.com/29u4w8.png Does it look ok? I am having a bit of trouble realising what speed my RAM is good for. I thought CPU-z used to tell me what each stick was (I have 2) but it doesn't seem to any more. Please share your knowledge! Ok I got SIW and my ram is DDR-800 (400Mhz) |
#3
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Is this safe?
'bornfree' wrote:
|I tried an OC which resulted in my DRAM at 463Mhz, which was not | stable | http://i32.tinypic.com/346mgdl.jpg | | So now I am at 375Mhz | http://i32.tinypic.com/29u4w8.png | | Does it look ok? | | I am having a bit of trouble realising what speed my RAM is good for. | I thought CPU-z used to tell me what each stick was (I have 2) but it | doesn't seem to any more. Please share your knowledge! _____ Gee, who knows? You don't provide any information about the rest of your system; Memory voltage, etc. Nor do you show the SPD tab of CPU-Z, the tab that shows the manufacturer supplied memory module specifications. The more you scatter your posts, the more difficult you make it to understand what question you are actually asking. Phil Weldon "bornfree" wrote in message ... |I tried an OC which resulted in my DRAM at 463Mhz, which was not | stable | http://i32.tinypic.com/346mgdl.jpg | | So now I am at 375Mhz | http://i32.tinypic.com/29u4w8.png | | Does it look ok? | | I am having a bit of trouble realising what speed my RAM is good for. | I thought CPU-z used to tell me what each stick was (I have 2) but it | doesn't seem to any more. Please share your knowledge! |
#4
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Is this safe?
bornfree:
I tried an OC which resulted in my DRAM at 463Mhz, which was not stable http://i32.tinypic.com/346mgdl.jpg So now I am at 375Mhz http://i32.tinypic.com/29u4w8.png Does it look ok? I am having a bit of trouble realising what speed my RAM is good for. I thought CPU-z used to tell me what each stick was (I have 2) but it doesn't seem to any more. Please share your knowledge! It looks like you need to get your "System Memory Multiplier" in the M.I.T. off "auto." It is trying to run your memory at it's rated speed before you overclock the FSB. You want your memory frequency to be what your CPU is rated for. That way, when you raise the "CPU Host Frequency," your memory frequency will increase with it and you will have the headroom you need. In CPU-Z where is says FSBRAM, you want it to say 1:1, I believe. At 1:1, by raising your "CPU Host Frequency" to 400, your cpu will be at 2.8 GHz and DDR2-800 (6400) memory will be at default speed. But I thought you had one stick of "PC2-4300" rated for 266 MHz. The first thing I would do if I were you is run Memtest 86+ with a reduced CPU multiplier so that only your RAM is overclocked, bump the memory voltage up to 2v or 2.1v, and see what the actual limit of the memory is. Then you will not risk trashing your Windows installation by running with unstable memory. |
#5
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Is this safe?
On Fri, 25 Jan 2008 14:50:33 GMT, Fishface wrote:
bornfree: I tried an OC which resulted in my DRAM at 463Mhz, which was not stable http://i32.tinypic.com/346mgdl.jpg So now I am at 375Mhz http://i32.tinypic.com/29u4w8.png Does it look ok? I am having a bit of trouble realising what speed my RAM is good for. I thought CPU-z used to tell me what each stick was (I have 2) but it doesn't seem to any more. Please share your knowledge! It looks like you need to get your "System Memory Multiplier" in the M.I.T. off "auto." It is trying to run your memory at it's rated speed before you overclock the FSB. You want your memory frequency to be what your CPU is rated for. That way, when you raise the "CPU Host Frequency," your memory frequency will increase with it and you will have the headroom you need. In CPU-Z where is says FSBRAM, you want it to say 1:1, I believe. At 1:1, by raising your "CPU Host Frequency" to 400, your cpu will be at 2.8 GHz and DDR2-800 (6400) memory will be at default speed. But I thought you had one stick of "PC2-4300" rated for 266 MHz. The first thing I would do if I were you is run Memtest 86+ with a reduced CPU multiplier so that only your RAM is overclocked, bump the memory voltage up to 2v or 2.1v, and see what the actual limit of the memory is. Then you will not risk trashing your Windows installation by running with unstable memory. Para1: yes. Para2: great idea!!! -- Kris -------- DFI P35-T2RL | E2200Alen TtP0310 | 2x1gb Mushkin HP 800@1040 | MSI NX8600GTS-OC 256mb | Raidmax RX530-SS psu | XP Pro SP 2 |
#6
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Is this safe?
On 25 Jan, 14:50, "Fishface" ? wrote:
bornfree: I tried an OC which resulted in my DRAM at 463Mhz, which was not stable http://i32.tinypic.com/346mgdl.jpg So now I am at 375Mhz http://i32.tinypic.com/29u4w8.png Does it look ok? I am having a bit of trouble realising what speed my RAM is good for. I thought CPU-z used to tell me what each stick was (I have 2) but it doesn't seem to any more. Please share your knowledge! It looks like you need to get your "System Memory Multiplier" in the M.I.T. off "auto." It is trying to run your memory at it's rated speed before you overclock the FSB. You want your memory frequency to be what your CPU is rated for. That way, when you raise the "CPU Host Frequency," your memory frequency will increase with it and you will have the headroom you need. In CPU-Z where is says FSBRAM, you want it to say 1:1, I believe. At 1:1, by raising your "CPU Host Frequency" to 400, your cpu will be at 2.8 GHz and DDR2-800 (6400) memory will be at default speed. Thanks for the advice, I love you fishface. I got the System memory multiplier off auto. My FSB and DRAM are now at 1:1. But I thought you had one stick of "PC2-4300" rated for 266 MHz. Yeah I do. Shall I ditch it as a temporary solution until I run memtest.. That way I can just use the 400Mhz RAM, at 400Mhz. The first thing I would do if I were you is run Memtest 86+ with a reduced CPU multiplier so that only your RAM is overclocked, bump the memory voltage up to 2v or 2.1v, and see what the actual limit of the memory is. Then you will not risk trashing your Windows installation by running with unstable memory. Ok. Thanks again. How long shall I run memtest for... I don't want to be doubley-rock-solid, just long enough so that nothing ugly and critical will happen. Oh - what the heck am I looking for with memtest? I have run it in the past but sometimes I feel like I am staring into the green matrix code. ! |
#7
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Is this safe?
bornfree wrote:
Fishface wrote: But I thought you had one stick of "PC2-4300" rated for 266 MHz. Yeah I do. Shall I ditch it as a temporary solution until I run memtest.. That way I can just use the 400Mhz RAM, at 400Mhz. I'd probably try it first. Bump up the voltage, try 333 MHz and jump to test #5. If you don't get any errors highlighted in red after a couple passes, try 366. Then 400. If you get errors, drop it by half the previous jump to zero-in on the highest stable speed. Finally, I ususally let it run overnight or all day while I'm at work (on all tests) to be certain. By knowing the limit, you can be more confident as to how close you are actually treading from the edge. Then if Orthos gives errors in Windows, it is usually more CPU voltage that is required and not something to do with the memory stability. As I said previously, the inexpensive memory is often the same as the higher speed memory, only untested or operating at a reduced voltage. It will often perform much better than its rated speed. This will, of course, vary by brand, part number and batch of the chips. If your lower speed stick proves to be very limiting, you could remove it, but you would be losing a lot of memory bandwidth because of the dual channel nature of the memory controller. That will hurt in some applications, and not make a bit of difference in others. Usually, I believe you would benefit more from the higher CPU speed. |
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