Question about HP Compaq Presario R4000 Notebook
My laptop is a Compaq Presario R4000 (PN495AV) and will support up to 2 GB maximum. I am trying to upgrade the memory from 2 x 256MB to 2 x 1GB. I have 333MHz PC2700 DDR chips.
With both chips installed, the laptop will not even boot to POST. Nothing is on the screen.
The laptop boots fine with 1GB and Windows XP Professional load fine.
With 1GB and 1 x 256MB installed, POST shows 1280MB but Windows XP will not load. I know Windows XP (32-bit) will recognize up to 3GB (4GB addressable) so I suspect a hardware problem.
I check you laptop specification and it really do support uptp 2 GB. So here I'm not sure your 1GB are both of them DDR 333Mhz ?? .If so what I really want you to test here is
1. 1 GB in one slot and turn it on (as you say you can boot wih it) after that move that 1 GB to the other slot and see.
2. try the same with the other 1GB and see that both work fine on both slot or not.
Incase both work fine on both slot then maybe problem with hardware what I want you to do after that is try to check your BIOS version and check on the website that they do have new BIOS version or not ?? Coz this can help incase problem are from BIOS.
Posted on May 21, 2008
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Posted on Jan 02, 2017
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