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I have IBM x3650 7979 with 4GB RAM (original IBM RAMs) installed in slots 1 and 4. I have 8GB kit from Kingston (4x2GB), I installed them on slots 7 and 10, 2 and 5. For some reason the system wouldn't recognize all RAMs, anyone knows of a tool for Windows that can help figure out what's wrong?

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When you say that "the system wouldn't recognize all RAMs" - Do you mean that the BIOS doesn't see all 4 modules, or Windows doesn't show 8GB? What OS is on the server? –  MDMarra Aug 7 '12 at 14:48
Certainly you've put them in the right slots - it'd be good to know the exact parts/specs of each module though. –  Chopper3 Aug 7 '12 at 15:01
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