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Re: Redhat 8.0 and 2 GB RAM - maybe solved (was Psyche-list digest, Vol 1 #1010 - 14 msgs



At 04:05 PM 2/17/2003, psyche-list-request redhat com wrote:
{snip}
Message: 3
Date: Mon, 17 Feb 2003 13:55:31 -0500
To: psyche-list redhat com
From: Dimitri Deserranno <ddeserranno yahoo com>
Subject: Re: Redhat 8.0 and 2Gb RAM
Reply-To: psyche-list redhat com

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Original system: (fully functional) 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)
{snip}
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






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