Perhaps you have a 32-bit Operating System? What happens if you test 1 stick only until you test all? Is every single Stick recognized individually?
No I forgot to add I formatted my HardDrive Installed XP so i could do a MicroCode update on my Processor. And then I updated my BIOS from XP. This stil did not show all my RAM. I then Installed WIN 7 PRO 64bit. And Used Disk Ceanup to remove the Old Windows OS. I have 2 sticks of 2gb. And 1 stick Shows the full 2gb. And I tried the other and it still shows the 2gb
It Says its HardWare Reserved
May I know what the memory part number is? Can you also post your system information report here?
How to get it?
System Information: Click Start> Type System Information> Click File> Export> Save File> Attach using Advanced Editor Options.
Thank you for sharing this information.
Checking these reports, I see the computer is recognizing 4GB installed on the motherboard but the availability may be limited by the Operating System or a configuration in your system.
At this point, the best step is to contact HP and report this issue to them. Doing a BIOS update may do the trick as well.