zeus55 Posted December 23, 2003 Share Posted December 23, 2003 I am having a problem with a matched pair of XMS3205V1.1 sticks on an Asus A7N8X Delux. The board will boot, but only with 100FSB defaults. Any attempt to alter these results in boot failure, and the cmos must be reset before another boot is allowed. I have no such problem using Kingston pc400 RAM Please advise. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 23, 2003 Corsair Employee Share Posted December 23, 2003 Can you tell me the CPU speed and FSB you have installed and the exact part# of our module? Like CMX512-3200LL? Also please tell me the bios settings you have set for both CPU and memory? Link to comment Share on other sites More sharing options...
zeus55 Posted December 23, 2003 Author Share Posted December 23, 2003 I am using a matched pair of CMX256A-3200LLPT with a 2.6gb AMD athlon. I can only get the FSB to 100, after that boot up fails The machine will only boot with default settings. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 23, 2003 Corsair Employee Share Posted December 23, 2003 But what are the other settings? I assume that you have them at default? Please try and set the settings like this. With AMD platform if you try to run the CPU at 166 Mhz for example and the memory at DDR400 it may cause a bottleneck in the chipset and generate errors that are not the fault of the memory. Please try these settings and test the system with [url]www.memtest86.com[/url] CPU Freq: 166Mhz Memory Freq: 100% Resulting Frequency: 166MHz SDRAM CAS Latency: 2T SDRAM RAS to CAS Delay (tRCD): 3T SDRAM Row Precharge (tRP): 2T SDRAM Active to Precharge Delay (tRAS): 5T Dim Voltage to 2.7 Volts Link to comment Share on other sites More sharing options...
zeus55 Posted December 23, 2003 Author Share Posted December 23, 2003 I tried the suggested settings, but the machine refuses to post. It seems it will not boot with anything but the 100FSB default settings. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 23, 2003 Corsair Employee Share Posted December 23, 2003 I would test the memory on another system, but that would suggest that the CPU is failing to me or you do not have the CPU fan on correctly. Link to comment Share on other sites More sharing options...
zeus55 Posted December 23, 2003 Author Share Posted December 23, 2003 I have tried an AMD 2.6ghz CPU in olace of the barton, with exactly the same results. Link to comment Share on other sites More sharing options...
chuckdee Posted December 23, 2003 Share Posted December 23, 2003 hey guys i have a question what is amd 2.6cpu? i have the 3200 barton and it runs at 2.2 or 2200. is yours overclocked or something? Link to comment Share on other sites More sharing options...
CMC_SAVAGE Posted December 23, 2003 Share Posted December 23, 2003 My question is, what AMD CPU runs at 2.6 GHZ? I assume you ment to say a 2600 CPU. The 266 FSB Thoroughbred runs at 16x133, the 333 T-bred runs at 12.5x166 and the 2600 Barton runs at 11.5x166. The resulting clock speeds would be: 2.133 2.083 1.917 Whatever CPU you're using, your RAM should be running at a 266 or 333 FSB for best stability. Also, follow RAM GUY's advice with Memtest. Link to comment Share on other sites More sharing options...
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