Question about PC Chips MB PCCHIPS M863G V5.1C w/XP2400+ Motherboard

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Upgrading to 2 GB Memory - only one DIMM recognized?

I have installed two identical Kingston 1GB DDR400 memory modules in my M863G (v5.1c) mobo. System only recognizes one of them thus I'm only getting 1 GB.

Others have suggested a BIOS upgrade may fix the problem but I can't find anything specific to this version (i.e. v5.1c is specifically indicated on the PCB - the "c" is actually a sticker!),

Might it simply be that the DDRs I'm trying to use are too fast (DDR400 vs. DDR333)?

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  • GIJon Aug 20, 2008

    Yes, I'm booting into BIOS setup everytime I've tried something new with this memory. The DDR400 modules are PC3200s (CL-3) so I also thought that I might need to crank up the CAS latency to 3T but this had no apparent effect. The BIOS/boot screen I get shows only the first DDR1 slot as being detected, even though both slots are occupied. I already had the other slot checked out at a local computer shop to make sure there wasn't a problem there.

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I am using the PCCHIPS M863G v1.5a with 2 identical Kingston 1GB DDR400 memory modules and they are working fine. I also have another system with a PCCHIPS M863G v 5.1A motherboard and I will test the 2 Kingston modules to see If theyare both detected properly. Do both modules have the same chips on them. Many times the same manufacturer can use different brand chips on each module and that can sometimes cause an incompatibility between the 2. Maybe one of the modules Is bad.Test one at a time and switchem out.

Posted on Sep 25, 2008

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Have you booted your computer into bios and see what it tells you there

Posted on Aug 20, 2008

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You're board can handel; DDR SDRAM up to 200 or 266MHz DDR SDRAM memory module. Accommodates two "unbuffered", 2.5V 184-pin slots. Each slot supports up to 1 GB with a total maximum capacity of 2 GB. Return the Kingston memory you have installed if it is less than a year old. They should allow you to trade up to the MB's supported memory.
Two reach the MB's max memmory of 2GB. Buy two Kingston DIMMS of, "unbuffered", 2.5V 184-pin
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http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=235786&CatId=548
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Link to ECS web site; http://www.ecsusa.com/ECSWebSite/Product/Product_Detail.aspx?DetailID=62&CategoryID=1&MenuID=50&LanID=9

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