Asus P6T6 WS Revolution Stability Issue

[kennyoc]

I built my dream machine a few months ago, and it has been a headache from day one. While it has always freezed, it is now doing it increasingly so. The screen with whatever was going on last, and the mouse and keyboard would be completely unresponsive. No amount of time would clear this up. I noticed that changing things with my memory would affect up time a bit. 2 sticks was more stable than 3 sticks.

 

I have read up and down this forum, but I could not find what any resource that would tell me what the most stable timing/voltage/other settings would be for my cmx6gx3m3a1600c9 memory. I tried the 1600 9-9-9-24-2T @ 1.65V setting and that was unstable for me. Please let me know what is the most stable settings or other settings I should try. Thank you for reading this and for your help.

[trackrat]

9-9-9-24 2T @ 1.65 V is the proper settings for your memory. You may have other issues however.

 

Have you individually tested each module with memtest 86+ ? Do you have the latest mobo BIOS? Have you tested stability with the RAM at the 1066 MHz. speed that your i7-930 CPU officially supports?

 

http://ark.intel.com/Product.aspx?id=41447

 

You may try raising the QPI to 1.35V and see if it helps.

 

http://en.wikipedia.org/wiki/QPI

[kennyoc]

Thank you for your prompt response.

 

I have performed the memtest 86+ with 2 of the memory modules for a full and it passed. I will try it with only 1 of the modules at a time.

 

What timing should I use with the RAM at 1066 Mhz?

 

The QPI is already at 1.35V.

[trackrat]

Use the normal latencies 9-9-9-24 2T. If both modules together passed then each individual module should pass.

[kennyoc]

Memtest86+ passed with 3 modules installed at 1066 MHz. The system is considerably more stable at 1066 Mhz than at 1600 Mhz. I’m a bit stumped. Changing the timing helps the stability, but the box still crashes. Changing the timing increases the time in between crashes from 1-15 minutes to over a few hours. Normally, this would be evidence that the memory is the issue. However, the Memtest86+ nets zero errors through 2 full passes. Do you know what this might mean?

Ken

[trackrat]

Well your CPU is only guaranteed to run RAM at 1066 MHz. so 1600 MHz. is 50% overclocking of the RAM. With overclocking nothing is guaranteed because all of the players - the CPU/RAM/Mobo/PSU, etc. must all be willing and able to run stable at the overclocked frequencies.

 

Maybe the link below will be useful in your efforts to run the RAM OC'd?

 

http://www.techreaction.net/2010/09/07/3-step-overclocking-guide-bloomfield-and-gulftown/

[JSX]

i'm running at 1333 with the same mobo

no problems what so ever

[trackrat]

i'm running at 1333 with the same mobo

no problems what so ever

 

You are running with the same MODEL mobo, not the same mobo... Every CPU/mobo/DIMM etc. is unique and thus the overclocking results will vary. This is a fact. Some components OC better than other's but there is no means to tell how well these components will OC other than by testing them to see.

 

If all Intel CPUs could run the RAM stable at 1600 MHz. then Intel would officially support this frequency. Overclocking is a hobby, not a destination.

[kennyoc]

JSX,

Thank you for your reply. What timing do you have your memory at.

 

trackrat,

 

Thank you for all your help. Unfortunately, the system will not run stable at even the 1066 MHz speed though it is MORE stable at 1066 MHz. Thanks for the link. I've read through it, but it is late. I'll read it more closely tomorrow morning. I'm not overclocking my system right now, so I'm not sure how much it will help.