Hi, I would be pleased of any comments about my situation
My system is an E4300 with a Q649 batch, P5B Deluxe, 2Gb Corsaire XMS2 TWIN2X1024A-6400 (4x 512Mb 2 by 2 matched modules) 5-5-5-15 timings set, Zalman 9700 AT (4 pins instead of LED brand with its 3 pins for better auto adjustment, even if marginal lower performance at maximum settings)
Stability is for me an Orthos 16h Large FFT session at priority 1 to keep the system functional for other tasks. I don't use TAT loader since it is too theorical and agressive
All mb AI, speedstep... stuff is off following everywhere guides for this mb
I have a good cooled case, as the system temperature (motherboard sensor) is around 40-41 degrees all the time
I tried to overclock with some issues:
1- Bios versions: I can get my stable overclocks for the 0910 bios revision. 1004 is less stable, and 1101 won't post at any of my rock solid overclocks on 0910 bios
2- My best stable overclock is FSB 326*9 = E4300 @2934 Mhz, so pair with the X6800 for a vcore of 1.45 bios (1.40 load on CPU-Z) and all chipsets/FSB voltages minimal fixed value
TAT temperatures are around 60-64°C depending on room temperature (24-26°C)
I can get 333*9 stable but with vcore over 1.47 bios and TAT temps hitting 69-71°C
I see in http://www.hardforum.com/showthread.php?t=1138241 that most people with an E4300 will hit these volts and these temperatures, and many will let it run at above 70°C orthos stable
3- My DDR2 is rated 800 Mhz. All my overclocks are stable only at 1:1, so that my memory must be underclocked to 2*326 (652Mhz) to be stable. RAM modules are rated at 800Mhz for 1.9v and are cooled with heatspreaders. I keep by default the vDIMM on 2.0v. Every attempt to increase my memory speed tends to be unstable even at something like 750Mhz. If I set my CPU and all to default settings, my modules are rock stable at their default 800Mhz speed. So if I increase the FSB and desynchronize memory, it tends to be unstable even at low speeds (like and FSB limit for the RAM). I tried with increasing memory voltage up-to 2.15v without success.
My questions are:
- For point 1: Anyone encountred or can explain my bios issues with the P5B Deluxe and E4300
- For point 2: Should I really stick to the tomtom temperature guide or follow the crowd on http://www.hardforum.com/showthread.php?t=1138241 and unless it is unstable, don't mind about 70-74 degrees
- For Point 3: I heard once, and never seen elsewhere, that oveclocking is less stable on 4 RAM modules than with 2 modules. Could it be the cause of my overclocking instability if I try to run DDR2 close to its rated speeds?
Many thanks for all your useful comments on any of these points
My system is an E4300 with a Q649 batch, P5B Deluxe, 2Gb Corsaire XMS2 TWIN2X1024A-6400 (4x 512Mb 2 by 2 matched modules) 5-5-5-15 timings set, Zalman 9700 AT (4 pins instead of LED brand with its 3 pins for better auto adjustment, even if marginal lower performance at maximum settings)
Stability is for me an Orthos 16h Large FFT session at priority 1 to keep the system functional for other tasks. I don't use TAT loader since it is too theorical and agressive
All mb AI, speedstep... stuff is off following everywhere guides for this mb
I have a good cooled case, as the system temperature (motherboard sensor) is around 40-41 degrees all the time
I tried to overclock with some issues:
1- Bios versions: I can get my stable overclocks for the 0910 bios revision. 1004 is less stable, and 1101 won't post at any of my rock solid overclocks on 0910 bios
2- My best stable overclock is FSB 326*9 = E4300 @2934 Mhz, so pair with the X6800 for a vcore of 1.45 bios (1.40 load on CPU-Z) and all chipsets/FSB voltages minimal fixed value
TAT temperatures are around 60-64°C depending on room temperature (24-26°C)
I can get 333*9 stable but with vcore over 1.47 bios and TAT temps hitting 69-71°C
I see in http://www.hardforum.com/showthread.php?t=1138241 that most people with an E4300 will hit these volts and these temperatures, and many will let it run at above 70°C orthos stable
3- My DDR2 is rated 800 Mhz. All my overclocks are stable only at 1:1, so that my memory must be underclocked to 2*326 (652Mhz) to be stable. RAM modules are rated at 800Mhz for 1.9v and are cooled with heatspreaders. I keep by default the vDIMM on 2.0v. Every attempt to increase my memory speed tends to be unstable even at something like 750Mhz. If I set my CPU and all to default settings, my modules are rock stable at their default 800Mhz speed. So if I increase the FSB and desynchronize memory, it tends to be unstable even at low speeds (like and FSB limit for the RAM). I tried with increasing memory voltage up-to 2.15v without success.
My questions are:
- For point 1: Anyone encountred or can explain my bios issues with the P5B Deluxe and E4300
- For point 2: Should I really stick to the tomtom temperature guide or follow the crowd on http://www.hardforum.com/showthread.php?t=1138241 and unless it is unstable, don't mind about 70-74 degrees
- For Point 3: I heard once, and never seen elsewhere, that oveclocking is less stable on 4 RAM modules than with 2 modules. Could it be the cause of my overclocking instability if I try to run DDR2 close to its rated speeds?
Many thanks for all your useful comments on any of these points