1 Dead, 1 Faulty

[TheThriller]

I currently have 2 sticks of Corsair XMS512-3200LLPRO, and one just recently decided to stop working.

 

The system will not POST with this "dead" stick installed.

 

Now that's out of the way, I've had problems with these 2 sticks from Day 1, they WILL NOT run 200Mhz with the timings of 2-3-2-6 as they are specified they will run, they won't do it anywhere in the range of 2.5-2.9 volts my Epox 8RDA3+ will provide. I was content to run them at 83% of fsb since I've had them, but now with 1 stick dead I'd like to go ahead and just get something that works within spec....

 

Is this a known problem with the 8RDA3+, or is this probably just slightly faulty RAM?

[Wired]

What CPU / FSB do you have? Have you tried the dead stick in multiple slots?

[TheThriller]

Well I had the cpu at 216x12 for 2600mhz, but with the ram divider at 83% (because it won't even run 200mhz), the ram was at ~179mhz. Yes I tried all 3 slots, and the PC won't POST with the dead stick installed.

[RAM GUY]

Please make sure that you have the latest BIOS for your MB and load Setup/Optimized default settings, and try the following BIOS settings;

TwinX1024 or TwinX512-3200LL

CPU Freq: 166 MHz (333 FSB)

System Performance: User Define

Memory Frequency: 100%

Resulting Frequency: 166 MHz (333 FSB)

Memory Timing: User Define

SDRAM CAS Latency: 2T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 2T

SDRAM Active to Precharge Delay (tRAS): 6T

DDR Reference Voltage: 2.7 Volts

AGP Voltage: Default *unless you have ATI (9200 or 9600) or NVIDIA (5200 or 5700) then 1.6 Volts suggested!*

All other settings are motherboards defaults

Then please test them one at a time with http://www.memtest.org and let’s make sure it's not some other issue! I would run the test for at least 2-3 passes to be sure!