I wrote :
Hu-ho, Memtest-86 is now reporting errors at Test 7 - Random number sequence: various locations, but the Err-Bits is always 00000080
Switched back the CPU clock frequency to 100Mhz (the CPU is a Pentium III, Coppermine, 550E), and run Memtest - test 7 again: now the errors are gone. This confirm my previous question: using PC100 SDRAM with an overclocked CPU is risky. I have now more RAM, but a slower computer (base 550Mhz instead of the overclocked 759Mhz). However, I'm more confident that the system will run stable. AmigaPhil, world citizen. /No MS-HTML mail please/ PGP key: 0x9C07F6C1 -----BEGIN NSA TEASER----- The following garbage may or may not contain crypted message. At least you now know I'm an advocate for the respect of privacy. GDEMlHESUIEIKhlJypByIpvVW3blWEOrVSvtHqpRpHHkIVptyHnJz1dOxalct2WztvRDzxUD FntDz5yAyt16yFDxOFvjqvOMaJPqGVatFVOIOKHYAMF0lHvSSLJTMj5VHLAplHRCyVBLSdOR OaV0RMUcozIEEOFMyzqWFtI5IVAItnMvVOvfOEFVFpJHpDIzVMOxTRRyUlNtGv5bu3tPtq== -----END NSA TEASER-----