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Hello i just bought a pair of 1 gig ddr 400 xms 3200 dual channel xtra-low latency ram.


I am running on an asus A7N8X Delux (old revision, not 2.0). When i put the memory in the system sometimes locks up before getting into windows, or during the loading process. If it does make it into windows my screen goes black everytime i open a new window (ex. control panel). If i dont do anything it eventually locks up. I can never run it in windows for longer then 30 seconds. Im guessing its a bios setting, what should i do?


Im leaving for holiday break to brasil in a bout 2 hours, if i dont finx a fix by then i guess ill have to post again here when i come back, thanks for the help in advance. Happy holidays.

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  • Corsair Employees

Please make sure that you set the jumper setting from the default 1-2 to 2-3 and that you also put the memory modules on slot 2&3; have the latest BIOS for your MB installed, and load Setup/Optimized default settings and try the following BIOS settings;

TwinX1024 or TwinX512-3200XL

CPU Freq: 200 MHz (400 FSB)

System Performance: User Define

Memory Frequency: 100%

Resulting Frequency: 200 MHz (400 FSB)

Memory Timing: User Define

SDRAM CAS Latency: 2T

SDRAM RAS to CAS Delay (tRCD): 2T

SDRAM Row Precharge (tRP): 2T

SDRAM Active to Precharge Delay (tRAS): 5T

DDR Reference Voltage: 2.8 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!

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  • 3 weeks later...

The bios settings you suggested did not work for me, it still boots into windows and i get black screens/reboots.


However i did turn the fbs down to 166 and turned the multiplier up to get the same mhz, and the memory did work.


It might be something with my motherboard not supporting 200 fsb right, maybe only the revision 2.0 version of the motherboard works with 200 fbs. I did change the jumper setting when i used 200 fbs but i had the same problem.


What should i do?

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