Hey guys, I have been having some problems overclocking my E6400 lately. I have followed all of the steps and tried numerous things with odd results. Here are my system specs:
Antec 900 ATX Gaming Case
Antec TruePower Trio 650W Power Supply
BFG GeForce 8800 GTX
Intel Core2Duo E6400
OCZ Gold PC-6400 Dual Channel (2 1GB sticks)
Asus P5B Mobo
Zalman 9500 CPU Cooler
WD 160GB 7200RPM Hard Drive
As you can see, my system is more than able (or should be) to overclock. I used the "Core2Duo Overclocking Guide" by wusy to set everything up and followed everything step-by-step. One thing I did notice was larger differences between what was instructed in the guide and what was actually in my Bios. Here is what my "Configure System Frequency/Voltage" menu looks like in the Bios
AI Tuning.............................[Manual]
CPU Frequency.........................[333]
DRAM Frequency.......................[DDR2-666MHz]
PCI Express Frequency..............[100]
PCI Clock Synchronization Mode.[33.33MHz]
Spread Spectrum......................[Disabled]
Memory Voltage........................[1.90V]
CPU VCore Voltage....................[1.4000V]
FSB Termination Voltage............[Auto]
SPD Was Disabled and RAM timings were set to as follows:
DRAM CAS# Latency.............[4]
DRAM RAS# to CAS# Delay.......[4 DRAM Clocks]
DRAM RAS# Precharge..............[4 DRAM Clocks]
DRAM RAS# Activate to Prcha....[12 DRAM Clocks]
And the rest were left unchanged. Going back to the DRAM Frequency, the lowest setting it had in the Bios was DDR2-666MHz. I see on the guide that "DDR2-667 4-4-4-12 1.9V operating at ~400MHz will need to be set to 5-5-5-15 2.2V". Does this apply to me, should I change my voltage and timings to that? I was a bit weary to change my Memory Voltage to <1.9V because the writing colors indicated it was high, but should it still be done in my case?
After setting these and turning off Q-Fan in another menu (couldn't find C1E, EIST, Virt Tech, No-Exc Mem Protect, Limit CPUID Max or Hyperpath) I booted to Windows fine. I did as was instructed and loaded up CPU-Z, CoreTemp and SpeedFan to monitor speed, temp and voltage. I then fired up Prime95 (got two instances running) and began two torture tests both on blend with 16MB to work with. A bunch of times, one resulted in a fatal error while the other ran for a bit then eventually hit a fatal error.
Then, I changed both tests to In-place large FFTs which ran a bit longer than the blends but eventually hit fatal errors (within a minute of running opposed to almost immediatly with the blends). So I then tried Small FFTs with both cores and it seemed to run fine at around 54C (100% CPU usage). I'm not sure what to make of this, seems like overheating but would it overheat that quickly (within seconds) with the blend tests? I noticed under the descriptions that blend and In-place large FFTs tested memory and Small-FFTs didn't so perhaps its a problem with the memory? I'm stumped, the voltage ran at about 1.31V during the small FFTs test which seemed ok even though I have it set at 1.4V through the Bios.
I ran a custom test with the same FFT sizes as the blend but took away all memory tests (made FFTs In-place) and it seemed to run similar to the small-FFTs test which also has no memory. Once, during one of the blend tests I experienced the blue-screen for a split second then my computer restarted, is my memory overheating perhaps? After roughly 8 minutes both of the custom tests failed with fatal errors. Any help is welcome and thank you for concerning yourself with such a lengthy post.
**EDIT**
The Bios version is 0403
Antec 900 ATX Gaming Case
Antec TruePower Trio 650W Power Supply
BFG GeForce 8800 GTX
Intel Core2Duo E6400
OCZ Gold PC-6400 Dual Channel (2 1GB sticks)
Asus P5B Mobo
Zalman 9500 CPU Cooler
WD 160GB 7200RPM Hard Drive
As you can see, my system is more than able (or should be) to overclock. I used the "Core2Duo Overclocking Guide" by wusy to set everything up and followed everything step-by-step. One thing I did notice was larger differences between what was instructed in the guide and what was actually in my Bios. Here is what my "Configure System Frequency/Voltage" menu looks like in the Bios
AI Tuning.............................[Manual]
CPU Frequency.........................[333]
DRAM Frequency.......................[DDR2-666MHz]
PCI Express Frequency..............[100]
PCI Clock Synchronization Mode.[33.33MHz]
Spread Spectrum......................[Disabled]
Memory Voltage........................[1.90V]
CPU VCore Voltage....................[1.4000V]
FSB Termination Voltage............[Auto]
SPD Was Disabled and RAM timings were set to as follows:
DRAM CAS# Latency.............[4]
DRAM RAS# to CAS# Delay.......[4 DRAM Clocks]
DRAM RAS# Precharge..............[4 DRAM Clocks]
DRAM RAS# Activate to Prcha....[12 DRAM Clocks]
And the rest were left unchanged. Going back to the DRAM Frequency, the lowest setting it had in the Bios was DDR2-666MHz. I see on the guide that "DDR2-667 4-4-4-12 1.9V operating at ~400MHz will need to be set to 5-5-5-15 2.2V". Does this apply to me, should I change my voltage and timings to that? I was a bit weary to change my Memory Voltage to <1.9V because the writing colors indicated it was high, but should it still be done in my case?
After setting these and turning off Q-Fan in another menu (couldn't find C1E, EIST, Virt Tech, No-Exc Mem Protect, Limit CPUID Max or Hyperpath) I booted to Windows fine. I did as was instructed and loaded up CPU-Z, CoreTemp and SpeedFan to monitor speed, temp and voltage. I then fired up Prime95 (got two instances running) and began two torture tests both on blend with 16MB to work with. A bunch of times, one resulted in a fatal error while the other ran for a bit then eventually hit a fatal error.
Then, I changed both tests to In-place large FFTs which ran a bit longer than the blends but eventually hit fatal errors (within a minute of running opposed to almost immediatly with the blends). So I then tried Small FFTs with both cores and it seemed to run fine at around 54C (100% CPU usage). I'm not sure what to make of this, seems like overheating but would it overheat that quickly (within seconds) with the blend tests? I noticed under the descriptions that blend and In-place large FFTs tested memory and Small-FFTs didn't so perhaps its a problem with the memory? I'm stumped, the voltage ran at about 1.31V during the small FFTs test which seemed ok even though I have it set at 1.4V through the Bios.
I ran a custom test with the same FFT sizes as the blend but took away all memory tests (made FFTs In-place) and it seemed to run similar to the small-FFTs test which also has no memory. Once, during one of the blend tests I experienced the blue-screen for a split second then my computer restarted, is my memory overheating perhaps? After roughly 8 minutes both of the custom tests failed with fatal errors. Any help is welcome and thank you for concerning yourself with such a lengthy post.
**EDIT**
The Bios version is 0403