No Post

[Bbrash]

My system won't post with this ram after over 5 months of usage. I swapped in every piece individually to test. I tested with some borrowed CM2X2048-6400C5, system was stable with default settings.

 

I've updated my bios to the newest version.

 

I've tried the following settings as suggested in other threads:

 

Overclock: Manual

FSB: 333

FSB to North Bridge: 333

PCIE: 100

DRAM Frequency: 1066

DRAM Command: 2T

Latency: 5-5-5-15

DRAM Static Control: Disabled

DRAM Voltage: 2.2V

FSB Termination: Auto

North Bridge Volt: 1.4V

 

Am I missing something?

[DerekT]

You are advised to drop the bandwidth when you populate all four DRAM slots. Hopefully you have not damaged the motherboard memory controller.

 

Please research this thread:

 

http://www.houseofhelp.com/v3/showthread.php?p=372404#post372404

 

and the subthread:

 

http://www.houseofhelp.com/v3/showthread.php?t=64360&highlight=Unpredictable+results+QUAD2X4096+Gigabyte+X38-DS5

 

And post back here after you have read and understood these threads. Please read them with study in mind and do NOT skim them.

[Bbrash]

I guess I should have been more thorough.

 

A month ago I had a stick of RAM die on me so two are currently getting RMAed. I got my computer running again with the two remaining sticks and that's all that has been in there since. This is actually the first cold boot I've had since then when it refused to post.

 

I'm not sure how my memory controller could be damaged if I tested with two sticks of CM2X2048-6400C5 with no problems. I also tested each bank individually to make sure they were all working.

 

Heeding the advice of those threads I changed my settings to the following and once again tested a single stick of my 8500C5D.

 

Overclock: Manual

FSB: 333

FSB strap to N Bridge: 333

PCIE: 100

DRAM Freq: 800

DRAM Command: 2T

Latency: 5-5-5-15

DRAM Static Control: Disabled

DRAM Volt: 2.2v

North Bridge Volt: 1.4v

 

I'm still getting no post even at 800mhz with a single stick.

[DerekT]

Running all four DRAM slots populated without increasing MCH voltage can create problems. Test the DRAM in another system. One stick at a time. You may only be able to run lower end DRAM in your system now and possibly only two sticks as well.

 

All you can do now is test. Corsair will replace any damaged DRAM but you may have damaged your memory controller. As I said, populating with four DRAM sticks at the full speed (1066MHz) can lead to a damaged memory controller. DRAM is passive, it can not damage other components but the memory controller can not keep up to a full bore four slot population at the speed of a two DRAM slot population.

[Bbrash]

I took my remaining 3 modules and tested them on another P5E board, all failed to post just like on my board. Just for giggles I stuck in my busted stick and it booted up! I brought it back to my computer and stuck it in, again it booted right up. Of course when I ran a memtest it showed that it would eventually lead to my original BSOD problem.

 

So broken stick works, good sticks don't. Good sticks don't work on a P5E that doesn't have a damaged memory controller question.

[DerekT]

Forwarded to RAM GUY for RMA consideration.

[RAM GUY]

Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them. Be sure to check the box that says “I've already spoken to Technical Support and/or RAM Guy.”