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Dell E520 BIOS problem with memory upgrade

Last response: in Motherboards
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Anonymous
a b V Motherboard
September 22, 2009 5:30:52 PM

My Dell owners manual says it is upgradeable to 4 GB. I tried to upgrade. It has 4 slots and 2 are filled with 512 MB chips. I have 2 identical chips but the BIOS does not recognize them, and says that memory (and CPU) are "unchangeable". Is there a way to correct this. I have flashed the BIOS and reset the CMOS but it does not recognize the 2 new chips, and still says "unchangeable".
a b V Motherboard
September 28, 2009 9:44:48 AM

Stupid question: you sure the RAM you got is fully compatible with the motherboard, frequency and timings wise?
!