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Message 1 of 2
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Z400 Ram problem 8GB (3.98 usable)

HP Recommended
Hp Z400
Microsoft Windows 7 (64-bit)

I have an Hp Z400 with 8 Gb Ram but only 3.98 works and I want someonr to help me to solve this problem I have tried all videos on youtube nothing work

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HP Recommended

first look at the inside cover of your system, the ram slot configurations should be posted on it


second, check the ram sticks, make sure the dimm model numbers match EXACTLY,  dimm numbers that are slightly diffrent mean the module IS DIFFRENT, and the diffrence could just be timings, or it could be the diffrence between 1/2/4 rank modules


3rd, you must be using a 64bit operating system to see/use more than 3/4 gigs


a 32bit os is limited to under 4gb, no way around it

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