Re: SR-M504 Intel 430VX ignoring memory!

Re: SR-M504 Intel 430VX ignoring memory!

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Posted by Henry on November 16, 2001 at 20:38:16:

In Reply to: SR-M504 Intel 430VX ignoring memory! posted by Takuma on November 14, 2001 at 09:39:39:

: This mobo is ignoring two of the four EDO memory slots when all four are filled! Is this fixable?

: SR-M504 Intel 430VX 09/06/96-i430VX-2A59GSJCC-00


Maybe you have a problem, maybe not. Dig out your mainboard specs and manual. Chipsets have limited capacity to use (read/write) memeory. In addition to voltage and speed (60ns, 70ns, PC66, PC100, PC133) chipsets limit total onboard memory, maximum memory on a module (stick) and maximum Mbits per chip on the stick. Your manual and spec sheet should give you values for the limits above. If not, search Intel's web site for the 430VX chipset spec sheet (spec book) - the limits may be hard to find, but will be spelled out there. Make sure that you aren't trying to exceed memory limits.

I assume you are adding two memory sticks; this sounds like 72 pin SIMMs (most boards require matched pairs of SIMMs). Some things to try:
1. CLEAN the slots you are populating now by brushing vigorously with a good (used is OK) toothbrush. If you never used these slots the contacts may have a dust film that is interfering; vacuum the slots after brushing their teeth. What the heck, try cleaning all 4 slots while you are at it.
2. CLEAN the memory contacts with a Pink Pearl eraser - it is soft with enough fine abrasive to clean without damaging the contacts (rub carefully, anyway). Shine the contacts and clean all the eraser crumbs away.
3. Try it again. Different results than before?
4. Memory will not be recognized (sometimes the PC won't even POST) if memory is NOT SEATED perfectly. Try reseating the memory.
5. Try the new memory in the "old" slots and the old memory in the new slots. Does the new memory work in the old slots?

Sad to say, but sometimes memory slots are bad; hope yours are OK.

Hope this helps,

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