eglaser Posted March 7, 2005 Share Posted March 7, 2005 Hello, I have 2 Corsair TWINX memory sticks. The specs are: Part Number: CMX512-3200LLPT Version Number: 1.2 (XMS3205v1.2) Lot Number: 0414029-6 XMS3200 512MB 400MHz 2326 A few months after setting up my system, it started crashing intermittently. I tried replacing the video card, hd, etc to no avail. Then today I ran Memtestx86 and got about 60,000 errors after 15 minutes or so. I took out one of the RAM sticks and reran Memtest - no errors. I then swapped the other chip in and reran - thousands of errors. So it looks like the one stick is toast. Are there any more tests or any info I need to give to get an RMA? System Specs: Intel D875PBZ motherboard 3 GHz Pentium 4 chip w/ 1 MB L2 cache 800 MHz System Bus From the BIOS (w/ the one 'good' chip installed): 800 MHz System Bus Speed 400 MHz System Memory Speed SDRAM Timing Control: Auto CPC Override: Auto SDRAM Frequency: 400 MHz SDRAM tCL: 2.0 SDRAM tRCD: 3 SDRAM tRP: 2 SDRAM tRASmin: 6 Memory Refresh Cycle Time: 12 Clocks Memory R/W delay: 2 clocks Memory R/W timing: 6 clocks DDR Voltage: 2.625 Volts Total Memory: 512 MB Memory Mode: Single Channel Thanks! Eli Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 7, 2005 Corsair Employees Share Posted March 7, 2005 Please try and set the DDR Voltage to 2.775 Volts and test the modules one at a time with http://www.memtest.org. Link to comment Share on other sites More sharing options...
eglaser Posted March 8, 2005 Author Share Posted March 8, 2005 Please try and set the DDR Voltage to 2.775 Volts and test the modules one at a time with http://www.memtest.org. Ram Guy, I did as you suggested. I set the DDR Voltage to 2.775 Volts and I grabbed a copy of Memtestx86+1.51. I first tested the "good" module and found no errors after 2 passes. I then swapped in the "bad" module and ran the test. I got 9044 errors after one pass. In looking at the error listings, it seemed like all of the errors were in the fourth half-byte (nibble?): Good: ffffffff Bad: fff7ffff Err-Bits: 00080000 But it wasn't just for 'ffffffff' sequences- many other sequence failed but the problem was always with the 4th nibble. I suspect the problem is with the MSB of the lower nibble of the second byte. Errors I noticed were 'F' turning into '7', 'e' turning into 6, 'c' turning into 4, 'b' turning into 3, 'a' turning into 2, '9' turning into '1' and '8' turning into '0'. The 'Err-Bits' field always read '00080000'. Are there any other tests I need to do before I can get an RMA? Also in the mean time I'm using my one good module - should I keep the DDR Voltage at 2.775V as you had me change it to or should I go back to the default 2.625V? Thanks, Eli Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 8, 2005 Corsair Employees Share Posted March 8, 2005 I would suggest you leave the voltage set to 2.775 Volts. Please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! Link to comment Share on other sites More sharing options...
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