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#1
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EP35C-DS3R memory overvoltage control
Hi everyone,
I'm currently tracking the reason for memory errors in my system (1 error after 1500% testing by memtest under windows). This set of memory sticks is installed: F2-8500CL5D-GGBPK G.skill DDR2-1066 PC2-8500 2048 x 2 CL5-5-5- 15 2.0-2.1V Under the BIOS "PC Helth Status", I read DDR2/DDR3 Voltage 2.032V = this is normal In the BIOS, I go to "MB Intelligent tweaker" DRAM Timing is on auto and gives 5-5-5-15== that's normal. *BUT* at the end of the MB intellibngent tweker settings, there are the: "system voltage control" wich are set on Auto: the DDR/DDR3 OverVoltage Control is set to +0.2V With a big fat red comment on the right pannel saying "Warning: Voltages may be raised for optimizing overclock". I just want my system to ba stable, so I will go unde r the manual volatge control and set the DDR2 overvoltage control to "normal". And then I have 2 questions: Is it possible that this setting is the only cause of my problem (memory errors)? How can a default setting be unsecure? Anyway, I will lauch a new test and let you know how it went. Might be useful for someone else. Huey |
#2
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EP35C-DS3R memory overvoltage control
Hueyduck a écrit :
the DDR/DDR3 OverVoltage Control is set to +0.2V With a big fat red comment on the right pannel saying "Warning: Voltages may be raised for optimizing overclock". I just want my system to ba stable, so I will go unde r the manual volatge control and set the DDR2 overvoltage control to "normal". Just to be precise: now that I have set the overvoltage to "normal", the DDR2 voltage is 1.936V But the bow of the memory sticks recommend settings from 2.0 to 2.1V. Is there something wrong with being a little lower than 2.0V (in my case 1.936V)? Huey |
#3
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EP35C-DS3R memory overvoltage control
On Tue, 20 Oct 2009 13:01:35 +0200, Hueyduck
wrote: Hi everyone, I'm currently tracking the reason for memory errors in my system (1 error after 1500% testing by memtest under windows). This set of memory sticks is installed: F2-8500CL5D-GGBPK G.skill DDR2-1066 PC2-8500 2048 x 2 CL5-5-5- 15 2.0-2.1V Under the BIOS "PC Helth Status", I read DDR2/DDR3 Voltage 2.032V = this is normal In the BIOS, I go to "MB Intelligent tweaker" DRAM Timing is on auto and gives 5-5-5-15== that's normal. *BUT* at the end of the MB intellibngent tweker settings, there are the: "system voltage control" wich are set on Auto: the DDR/DDR3 OverVoltage Control is set to +0.2V With a big fat red comment on the right pannel saying "Warning: Voltages may be raised for optimizing overclock". I just want my system to ba stable, so I will go unde r the manual volatge control and set the DDR2 overvoltage control to "normal". And then I have 2 questions: Is it possible that this setting is the only cause of my problem (memory errors)? How can a default setting be unsecure? Anyway, I will lauch a new test and let you know how it went. Might be useful for someone else. Your dilemma is caused by that your Gskill needs 2.0-2.1 volt. Nominal standard voltage for DDR2 is just 1.8 volt. But many brands require more than 1.8, per example corsair. Kingston value ram can run with 1.8 volt. If I were you I would give the ram no less than 2.1 volt. An overvoltage of 0.1 volt is a very modest overclocking, and you reach that on 2.2 in your case. If you insist on 1.93 volt you might have to lower the timings to something slower than 5-5-5-15, or lower the speed to below 1066 (266 x 4), per example 800. CPU-z can tell something about how ram runs. Download cpu-z. You are lucky that your motherboard can find out to boot with your ram. In the beginning of the DDR2 era this was a problem. They could only boot default with 1.8, and how do you increase voltage without a bios to set it in. I have the very same motherboard. I use muskin ram, and runs 800. I never loved the motherboard, since it is not willing to run with 4 sticks of these. So I am stucked at 2x2 Gb. It reboots continuously in a cycle with 4 sticks (bios trying to find a compromise). I have tried also asus and msi P35 chipset variants, and they wouldn't either. It is probably a P35 limitation. But with AMD I have no problem: 4x2 Gb. best regards John |
#4
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EP35C-DS3R memory overvoltage control
I should add that I just flashed the F4 bios from 06/18/09. Then added 2 x 2 Gb Kingston value ram PC2 6400 ram sticks additional to Mushkin 2 x 2 Gb PC2 6400 ram sticks. It booted and runs fine in dual ram mode with these 8 Gb. Just ideal for windows 7,64 bits version ! I am happy again. I am not certain if it is the F4 bios, or the kingston ram. But previously with 4 mushkin sticks it would never boot. best regards John |
#5
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EP35C-DS3R memory overvoltage control
jk a écrit :
I should add that I just flashed the F4 bios from 06/18/09. Then added 2 x 2 Gb Kingston value ram PC2 6400 ram sticks additional to Mushkin 2 x 2 Gb PC2 6400 ram sticks. It booted and runs fine in dual ram mode with these 8 Gb. Just ideal for windows 7,64 bits version ! I am happy again. I am not certain if it is the F4 bios, or the kingston ram. But previously with 4 mushkin sticks it would never boot. Thanks for sharing. I haven't updated my BIOS since I bought the card 1 year ago. It might be helpfull. Huey |
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