Overclocking E8500 on EP45-DS3

[gile]

Can anyone tell me how to set bios correctly for good overclocking?
PC:
Gigabyte GA-EP45-DS3
INTEL Core2duo E8500
OCZ2P8002G 2x2GB
Sapphire Radeon HD 5670

[Chike]

Re: Overclocking E8500 on EP45-DS3

Pead the suggested manual settings for stock FSB in this post.
Please follow steps 1-4 to provide additional information about your setup.
What are you aiming for?
What kind of CPU cooler are you using?

[gile]

OCZ DDR2 PC2-6400 Vista Performance Platinum 4GB Dual Channel OCZ Technology
Graphics: Ati Sapphire Radeon HD 5670, 512MB,DDR5
SYSTEM HD: SSD INTEL X25-M 80GB.
Power Supply: Corsair TX 650W.

[gile]

Re: Overclocking E8500 on EP45-DS3

Here is the image of my Bios.

[profJim]

Re: Overclocking E8500 on EP45-DS3

It's much easier for us to help you if you used the P45 bios template and accurately fill in your bios settings.
You can use the P45 bios template that is in the post that Chike linked to in post #2.
Copy the template into Notepad or any plain text editing program, fill in your settings (AUTO or manual settings, not both) and post your settings in your next post.
Optimized bios settings are the starting point for a stable system, especially when overclocking.
For now use 5-5-5-15 primary memory timings. Dram Voltage = 2.20 (EVP) might be needed for tighter memory timings.
Try MCH Core = 1.24
PLL is way to high due to the AUTO setting, manually set this to 1.50 - 1.57.

Nice screen-shot! Very helpful.

[gile]

[profJim]

Re: Overclocking E8500 on EP45-DS3

Manually set:
Static tRead Value (aka tRD) = 8 for both memory channels (use tRD = 9 if your system won't boot)
CPU Host Frequency (Mhz) = 401 Mhz

Have you performed any stress testing using Memtest86+ v:4.1, Prime95, OCCT, Intel BurnTest (IBT), or LinX

[Chike]

Re: Overclocking E8500 on EP45-DS3

Looks good so far if stable.
Set CPU termination manually to 1.2 or 1.22v.
Memory performance are probably far from optimal set tRD as profJim suggested.
The memory is probably the bottleneck of OC, hopefully you can still OC to 4GHz or a bit more.

[gile]

[profJim]

Re: Overclocking E8500 on EP45-DS3

Try setting Cpu Vcore and VTT up one click.
Try MCH Core = 1.20 - 1.22 and 1.26.
See if any of these settings help with improved booting.

Memtest86+ is an excellent program, but it doesn't substitute for extended stress testing using Prime95, OCCT, IBT, or LinX.

I run IBT or LinX for 10 loops using the maximum amount of memory available.
Using 2048 MB of memory in a 4GB system is a somewhat shorter test.
Cpu core temperatures will usually be about 65 - 70 (C) degrees during this test if you have good cpu/heatsink cooling along with good case cooling.

I like to run Prime95 Blend tests for at least 10 -12 hours.
When I've reached my final o/c settings, I run the Blend, Small FFT and Large FFT tests for 15 - 24 hours each.

Click on the last line in my forum signature for an in depth Prime95 tutorial.

[Chike]

Re: Overclocking E8500 on EP45-DS3

Vcore is at stock default, it may need some more, try 1.25-1.35v.

[gile]

Re: Overclocking E8500 on EP45-DS3

Hello! System boot is a bit quicker and test with Prime95 was very short:

[Main thread Jan 27 16:36] Mersenne number primality test program version 26.4
[Main thread Jan 27 16:36] Optimizing for CPU architecture: Core 2, L2 cache size: 6 MB
[Main thread Jan 27 16:36] Starting workers.
[Main thread Jan 27 16:40] Stopping all worker threads.
[Main thread Jan 27 16:40] Execution halted.
[Main thread Jan 27 16:40] Starting workers.
[Main thread Jan 27 16:40] Stopping all worker threads.
[Main thread Jan 27 16:40] Execution halted.
[Main thread Jan 27 16:41] Starting workers.
[Main thread Jan 27 17:18] Execution halted.


[Jan 27 16:36] Worker starting
[Jan 27 16:36] Setting affinity to run worker on logical CPU #0
[Jan 27 16:36] Beginning a continuous self-test to check your computer.
[Jan 27 16:36] Please read stress.txt. Choose Test/Stop to end this test.
[Jan 27 16:36] Test 1, 210000 Lucas-Lehmer iterations of M501041 using Core2 type-1 FFT length 24K, Pass1=96, Pass2=256.
[Jan 27 16:36] FATAL ERROR: Rounding was 0.5, expected less than 0.4
[Jan 27 16:36] Hardware failure detected, consult stress.txt file.
[Jan 27 16:36] Torture Test completed 0 tests in 0 minutes - 1 errors, 0 warnings.
[Jan 27 16:36] Worker stopped.
[Jan 27 16:40] Worker starting
[Jan 27 16:40] Setting affinity to run worker on logical CPU #0
[Jan 27 16:40] Beginning a continuous self-test to check your computer.
[Jan 27 16:40] Please read stress.txt. Choose Test/Stop to end this test.
[Jan 27 16:40] Test 1, 5300 Lucas-Lehmer iterations of M14155777 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:40] Torture Test completed 0 tests in 0 minutes - 0 errors, 0 warnings.
[Jan 27 16:40] Worker stopped.
[Jan 27 16:41] Worker starting
[Jan 27 16:41] Setting affinity to run worker on logical CPU #0
[Jan 27 16:41] Beginning a continuous self-test to check your computer.
[Jan 27 16:41] Please read stress.txt. Choose Test/Stop to end this test.
[Jan 27 16:41] Test 1, 5300 Lucas-Lehmer iterations of M14155777 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:42] Test 2, 5300 Lucas-Lehmer iterations of M14155775 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:43] Test 3, 5300 Lucas-Lehmer iterations of M13969343 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:44] Test 4, 5300 Lucas-Lehmer iterations of M13669345 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:45] Test 5, 5300 Lucas-Lehmer iterations of M13369345 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:46] Test 6, 5300 Lucas-Lehmer iterations of M13369343 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:46] Test 7, 5300 Lucas-Lehmer iterations of M13069345 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:47] Test 8, 5300 Lucas-Lehmer iterations of M12969343 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:48] Test 9, 6500 Lucas-Lehmer iterations of M12451841 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:49] Test 10, 6500 Lucas-Lehmer iterations of M12451839 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:50] Test 11, 6500 Lucas-Lehmer iterations of M12196481 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:51] Test 12, 6500 Lucas-Lehmer iterations of M11796481 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:52] Test 13, 6500 Lucas-Lehmer iterations of M11796479 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:54] Test 14, 6500 Lucas-Lehmer iterations of M11596479 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:54] Test 15, 6500 Lucas-Lehmer iterations of M11285761 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:56] Test 16, 6500 Lucas-Lehmer iterations of M10885759 using Core2 type-3 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:56] Self-test 720K passed!
[Jan 27 16:56] Test 1, 800000 Lucas-Lehmer iterations of M172031 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 16:58] Test 2, 800000 Lucas-Lehmer iterations of M163839 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 16:58] Test 3, 800000 Lucas-Lehmer iterations of M159745 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:00] Test 4, 800000 Lucas-Lehmer iterations of M157695 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:00] Test 5, 800000 Lucas-Lehmer iterations of M155649 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:02] Test 6, 800000 Lucas-Lehmer iterations of M153599 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:02] Test 7, 800000 Lucas-Lehmer iterations of M147455 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:04] Test 8, 800000 Lucas-Lehmer iterations of M143361 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:04] Test 9, 800000 Lucas-Lehmer iterations of M141311 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:06] Test 10, 800000 Lucas-Lehmer iterations of M135169 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:07] Test 11, 800000 Lucas-Lehmer iterations of M172031 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:08] Test 12, 800000 Lucas-Lehmer iterations of M163839 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:09] Test 13, 800000 Lucas-Lehmer iterations of M159745 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:10] Test 14, 800000 Lucas-Lehmer iterations of M157695 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:11] Test 15, 800000 Lucas-Lehmer iterations of M155649 using Core2 type-1 FFT length 8K, Pass1=32, Pass2=256.
[Jan 27 17:12] Self-test 8K passed!
[Jan 27 17:12] Test 1, 4500 Lucas-Lehmer iterations of M15597569 using Core2 type-2 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:13] Test 2, 4500 Lucas-Lehmer iterations of M15597567 using Core2 type-3 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:14] Test 3, 5300 Lucas-Lehmer iterations of M14942209 using Core2 type-2 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:15] Test 4, 5300 Lucas-Lehmer iterations of M14942207 using Core2 type-3 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:15] Test 5, 5300 Lucas-Lehmer iterations of M14155777 using Core2 type-2 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:16] Test 6, 5300 Lucas-Lehmer iterations of M14155775 using Core2 type-3 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:17] Test 7, 5300 Lucas-Lehmer iterations of M13969343 using Core2 type-2 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:18] Test 8, 5300 Lucas-Lehmer iterations of M13669345 using Core2 type-3 FFT length 800K, Pass1=640, Pass2=1280.
[Jan 27 17:18] FATAL ERROR: Rounding was 0.4999694824, expected less than 0.4
[Jan 27 17:18] Hardware failure detected, consult stress.txt file.
[Jan 27 17:18] Torture Test completed 38 tests in 37 minutes - 1 errors, 0 warnings.
[Jan 27 17:18] Worker stopped.

[Jan 27 16:36] Worker starting
[Jan 27 16:36] Setting affinity to run worker on logical CPU #1
[Jan 27 16:36] Beginning a continuous self-test to check your computer.
[Jan 27 16:36] Please read stress.txt. Choose Test/Stop to end this test.
[Jan 27 16:36] Test 1, 210000 Lucas-Lehmer iterations of M501041 using Core2 type-1 FFT length 24K, Pass1=96, Pass2=256.
[Jan 27 16:37] Test 2, 210000 Lucas-Lehmer iterations of M496943 using Core2 type-1 FFT length 24K, Pass1=96, Pass2=256.
[Jan 27 16:38] Test 3, 210000 Lucas-Lehmer iterations of M487423 using Core2 type-1 FFT length 24K, Pass1=96, Pass2=256.
[Jan 27 16:39] Test 4, 210000 Lucas-Lehmer iterations of M471041 using Core2 type-1 FFT length 24K, Pass1=96, Pass2=256.
[Jan 27 16:39] Test 5, 210000 Lucas-Lehmer iterations of M466943 using Core2 type-1 FFT length 24K, Pass1=96, Pass2=256.
[Jan 27 16:40] Torture Test completed 4 tests in 3 minutes - 0 errors, 0 warnings.
[Jan 27 16:40] Worker stopped.
[Jan 27 16:40] Worker starting
[Jan 27 16:40] Setting affinity to run worker on logical CPU #1
[Jan 27 16:40] Beginning a continuous self-test to check your computer.
[Jan 27 16:40] Please read stress.txt. Choose Test/Stop to end this test.
[Jan 27 16:40] Test 1, 5300 Lucas-Lehmer iterations of M14155777 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:40] FATAL ERROR: Rounding was 0.46875, expected less than 0.4
[Jan 27 16:40] Hardware failure detected, consult stress.txt file.
[Jan 27 16:40] Torture Test completed 0 tests in 0 minutes - 1 errors, 0 warnings.
[Jan 27 16:40] Worker stopped.
[Jan 27 16:41] Worker starting
[Jan 27 16:41] Setting affinity to run worker on logical CPU #1
[Jan 27 16:41] Beginning a continuous self-test to check your computer.
[Jan 27 16:41] Please read stress.txt. Choose Test/Stop to end this test.
[Jan 27 16:41] Test 1, 5300 Lucas-Lehmer iterations of M14155777 using Core2 type-2 FFT length 720K, Pass1=320, Pass2=2304.
[Jan 27 16:42] FATAL ERROR: Rounding was 0.5, expected less than 0.4
[Jan 27 16:42] Hardware failure detected, consult stress.txt file.
[Jan 27 16:42] Torture Test completed 0 tests in 0 minutes - 1 errors, 0 warnings.
[Jan 27 16:42] Worker stopped

[Chike]

Re: Overclocking E8500 on EP45-DS3

Which test did you run (small/laege/blend)?
Please post BIOS settings for the test.

[gile]

[Chike]

Re: Overclocking E8500 on EP45-DS3

Try more vcore.
If your temperatures permits, run IBT or LinX 1024-2048MB 5-10 runs, test. Expected GFlops are 24+, while significantly less or test fails you need more vcore, keep increasing up to 1.3v.
If not, run small FFT for 2 hours first and increase vcore if it fails.
And finally, 8+ hours Prime95 blend.