Hi,
Thanks a lot for the info. I will certainly check this out.
I am currently running fine though with 1.5Gb in slots 1-3. No problems, at least so far (several hours). Any idea? Just luck maybe?
Actually, since your email, I put in the 4th dimm as well, okay so far. Difference is only that some dimms are now in other slots compared to when failure occured (normally in less than 10min).
I just started memtest86-3.0 and I have a failing address already, on test#1. Any idea what this means? Does this have anything to do with comments from Paul?
Anyways, I'll be calling Asus and Corsair tomorrow. Thanks a lot.
Regards,
Dimi.
"
Athlon™ MP processors with the A7M266-D: This dual-CPU ATX motherboard uses a standard power supply and supports up to 3.5GB of registered DDR memory (4 slots) or 2GB of un-buffered DDR memory (2 slots) to provide a scalable, high-performance platform for high-end desktops, workstations and entry-level servers...
"
Original system: (fully functional){snip}
redhat 7.3
kernel 2.4.x smp (not sure - don't remember)
DDR Corsair memory CMX512-3200 (2 dimms)
ASUS A7M266-D (AMD MP recommended)
New, updated system: (unstable)
added: redhat 8.0 with most of available updates
added: kernel 2.4.18-24.8.0smp
added: DDR Corsair memory CMX512-3200C2 400MHz (2 new dimms)
DDR Corsair memory CMX512-3200 (2 dimms)
ASUS A7M266-D (AMD MP recommended) (with original BIOS)
I believe I see your problem (and it is not OS related).
Your Asus dual processor board requires ECC registered memory for use of all 4 RAM slots. It will operate correctly with non-registered memory in the first two slots, but beyond that ALL memory needs to be ECC registered to operate stably - check your MB manual or the Asus web site. The memory you are using is optimized for speed, in fact specifically for gaming rigs vice heavy duty, reliable number crunching. You are actually better off always buying ECC registered memory for an MPX based board to avoid this sort of thing. FWIW, I also believe that there is little advantage in going beyond good quality PC2100 ECC registered DDR for this MB, so if the Corsair memory is returnable or exchangeable, you may be able to save a bit of money. I believe the Corsair part numbers you want are CM72SD512R-2100, CM73SD512R-2100 and CM73SD512RLP-2100
Check the Corsair web site compatibility lab page to be sure, but they point out that your MB requires ECC registered memory
Regards
Paul
Dimitri Deserranno, PhD candidate
Department of Biomedical Engineering - Case Western Reserve University
Email: dimitri.deserranno@cwru.edu
Department of Cardiovascular Medicine - Cleveland Clinic Foundation
Phone: (216) 444 - 5315
Email: deserrd@ccf.org
