Overclocking E8500 on EP45-DS3

[gile]

Re: Overclocking E8500 on EP45-DS3

I tried runnig linx like 10 times or so, with different vcore [1.250-1.300] and it failed every single time. Then I tried with ibt only with vcore at 1.300V and succeeded on standard but failed on maximum. should I try to adjust anything else besides vcore?
Results of linx & ibt:

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Jan 27 21:54:09 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 20105
Leading dimension of array : 20120
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3236507296, at the size = 20105

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
20105 20120 4 220.047 24.6247 3.386600e-010 2.974737e-002
20105 20120 4 217.018 24.9684 3.882379e-010 3.410222e-002

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Jan 27 22:10:35 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 19751
Leading dimension of array : 19752
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3121373152, at the size = 19751

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
19751 19752 4 201.394 25.5091 1.907414e-006 1.733969e+002

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Jan 27 23:22:25 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 19751
Leading dimension of array : 19752
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3121373152, at the size = 19751

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
19751 19752 4 201.242 25.5284 3.819340e-010 3.472040e-002
19751 19752 4 204.673 25.1005 3.819340e-010 3.472040e-002
19751 19752 4 199.185 25.7920 1.907331e-006 1.733894e+002

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Jan 27 22:29:16 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 19751
Leading dimension of array : 19752
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3121373152, at the size = 19751

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
19751 19752 4 200.667 25.6016 3.819340e-010 3.472040e-002
19751 19752 4 199.385 25.7661 3.819340e-010 3.472040e-002
19751 19752 4 199.214 25.7883 3.819340e-010 3.472040e-002
19751 19752 4 198.964 25.8207 3.819340e-010 3.472040e-002
19751 19752 4 199.023 25.8130 9.537387e-007 8.670136e+001

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Jan 27 23:46:51 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 20010
Leading dimension of array : 20024
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3205846496, at the size = 20010

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
20010 20024 4 209.812 25.4616 1.525862e-005 1.349717e+003

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Thu Jan 27 23:54:16 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 20552
Leading dimension of array : 20552
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3379492768, at the size = 20552

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
20552 20552 4 225.537 25.6635 4.537328e-010 3.803764e-002
20552 20552 4 224.534 25.7782 4.767962e-007 3.997111e+001

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Fri Jan 28 00:08:04 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 20437
Leading dimension of array : 20440
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3342271136, at the size = 20437

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
20437 20440 4 222.720 25.5544 1.525878e-005 1.296919e+003

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Fri Jan 28 00:15:12 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 20066
Leading dimension of array : 20072
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3222523552, at the size = 20066

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
20066 20072 4 210.894 25.5441 3.814716e-006 3.355381e+002

Intel(R) LINPACK 64-bit data - LinX 0.6.4

Current date/time: Fri Jan 28 00:22:59 2011

CPU frequency: 3.811 GHz
Number of CPUs: 1
Number of cores: 2
Number of threads: 2

Parameters are set to:

Number of tests : 1
Number of equations to solve (problem size) : 20059
Leading dimension of array : 20072
Number of trials to run : 10
Data alignment value (in Kbytes) : 4

Maximum memory requested that can be used = 3221399520, at the size = 20059

============= Timing linear equation system solver =================

Size LDA Align. Time(s) GFlops Residual Residual(norm)
20059 20072 4 210.590 25.5543 3.533770e-010 3.115031e-002
20059 20072 4 209.809 25.6494 3.533770e-010 3.115031e-002
20059 20072 4 208.841 25.7683 1.216090e-004 1.071988e+004

IntelBurnTest v2.50
Created by AgentGOD
----------------------------

Processor: Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz
Clock Speed: 3,81 GHz
Active Physical Cores: 2
Total System Memory: 4094 MB

Stress Level: Standard (1024 MB)
Testing started on 28.1.2011. 0:54:01
Time (s) Speed (GFlops) Result
[00:54:42] 35.775 24.9866 3.628089e-002
[00:55:24] 35.757 24.9990 3.628089e-002
[00:56:05] 35.932 24.8768 3.628089e-002
[00:56:46] 35.755 25.0000 3.628089e-002
[00:57:28] 35.934 24.8758 3.628089e-002
Testing ended on 28.1.2011. 0:57:28
Test Result: Success.
----------------------------

IntelBurnTest v2.50
Created by AgentGOD
----------------------------

Processor: Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz
Clock Speed: 3,81 GHz
Active Physical Cores: 2
Total System Memory: 4094 MB

Stress Level: Maximum (3400 MB)
Testing started on 28.1.2011. 0:58:04
Time (s) Speed (GFlops) Result
[01:02:12] 227.198 25.4722 2.085127e+004
[01:06:18] 226.792 25.5178 1.283162e+003
Testing ended on 28.1.2011. 1:06:18
Test Result: Failure.
----------------------------

[Chike]

Re: Overclocking E8500 on EP45-DS3

GFlops looks OK at 24.9 IBT and 25.6 LinX, no need for vcore higher than that give those results.
tRD 8 should be ok, but maybe need to be higher, try 9.
Try ram at 2.12-2.16v, try MCH Core 1.24v and 1.28v, try VTT 1.26v.

[gile]

[Chike]

Re: Overclocking E8500 on EP45-DS3

I am not familiar with dirt2, how do you mean twiches?
I run DDR-800 with CAS 7 at 400MHz FSB bur i saw an early rebiew they required CAS 8 so I figured maybe CAS 5 may require 9.
What are core tems during IBT?
Have you ran Prime95 blend?

[profJim]

Re: Overclocking E8500 on EP45-DS3

Are you possibly running Dirt2 with game settings that are too high for you 5670 video card?

[gile]

Re: Overclocking E8500 on EP45-DS3

Dirt2 is a game, settings are standard, at least I think so. By twitching I mean that the picture freezes, not full but enough to make it hard to play. Core temps during IBT were max. 65. Just finished Prime95 blend test, I left it over 2 hours to run and there was no errors or warnings.

[profJim]

Re: Overclocking E8500 on EP45-DS3

While reading video card reviews/benchmarks, it's clear that game settings have a major influence on game visual quality and "playability". Dirt2 appears to be one of the more demanding games that is frequently used in upper mid level to top tier video card reviews.

With the gpu benchmarks that I've run so far, game setup options have a major effect on game smoothness/performance and visual quality where low, medium, high or ultra settings have a major impact on overall performance.

In a recent test, I lowered my screen resolution from 1920 x 1080 to 1600 x 900 where my Heaven benchmarks improved by 20% or more. The tests were run using DX9, DX10 and DX11, where the DX11 tests ran with tessellation settings = disabled, moderate, normal and extreme.

My old 7600GT video card struggled to run anything more demanding than watching high quality videos.

[gile]

Re: Overclocking E8500 on EP45-DS3

Thanks for your time and efford, I shall try lowering the resolution and see the effect! Is there anything else that I should do with my computer or is this the max with my current components?

[profJim]

Re: Overclocking E8500 on EP45-DS3

Your E8500 can often o/c to 4.20GHz and higher.
Your current ram will hinder your overall performance somewhat.
For gaming, your video card will be the greatest obstacle to game play using higher screen resolutions and/or high quality settings, especially with DX11 games. **correction** Your 5670 supports DX11 games.

Check out http://forums.tweaktown.com/video-ca...g-results.html, where I use the Heaven benchmark to show the different results when testing with DX9, DX10, and DX11.

For reference, the GTX 460 MSI Hawk performs at a similar lever to a 5770 CrossFire setup.

Let us know if you want to overclock to a higher level.

Check out DiRT 2 DirectX 11 Benchmarking Guide - Big Download

[gile]

[Chike]

Re: Overclocking E8500 on EP45-DS3

For a start see if you can set multiplier to 9.5 for 3.8GHz, hopefully nothing more than a bit more vcore will be needed.
After you got this stable try to puhs FSB, with a little luck you can get 4GHz without increasing CAS.

[gile]

[Chike]

Re: Overclocking E8500 on EP45-DS3

How high vcore have you tried at 4GHz? try 411MHz FSB for 3.9GHz.
Max VID range for your CPU is 1.3625v, and absolute max specified by Intel is 1.45v, so do not be afraid to set up to 1.3625 or a bit more.
Myabe 2.18v DRAM Volrage, and 1.28v VTT.
The are some other tweaks possible, namely CPU Rference and MCH Reference that help using lower VTT.and/or vcore. Those are more "tricky" to set so we'll try them if the above alone is not enough.

[gile]

[Chike]

Re: Overclocking E8500 on EP45-DS3

What are core temps and core voltage during IBT, and core voltage at idle?
Actually you may lbe able to lower some of them, but test Prime95 first and get a stable setting then try lower VTT, MCH Core and DRAM Voltage, but all are in acceptable range.
You can save different BIOS profile by pressing F11 at main BIOS screen, and later restore them (F12).
Run to see how ram performance are like.