Recently purchased the ProBook 4520s, running Windows 7 Home 32-bit. Upgraded the memory to 8GB Corsair (DDR3, 1333), and while it of course couldn't use all 8GB, it worked fine. Did a wipe and a clean install of Win 7 64-bit, updated drivers, and ran got a re-boot loop right after the BIOS screen. Ran a memtest using the BIOS utilities and came up fail, so I sent it back. Got new memory, this time from Crucial (DDR3, 1066). Memtest 86 showed memory was error free. Tried booting and same thing happened. Boots Windows fine with the 2GB that came with the machine, but not with any configuration that includes the upgraded memory in either slot with any combination of sticks. Tried the same thing with Ubuntu 64, and runs fine. Driver issue with Win 7 64? Any ideas what it might be and how I can fix it? Can't just run Linux cause I have some windows only apps needed for work. Already talked with HP support (unfortunately unhelpful) and Crucial (helpful but unable to identify issue) and came up with nothing. Any help would be appreciated.
NotebookForums.com › Forums › Notebook Manufacturers › HP, Compaq and Voodoo Forums › HP, Compaq and Voodoo Notebooks › HP Probook 4520s no windows boot after memory upgrade, but linux boots fine
HP Probook 4520s no windows boot after memory upgrade, but linux boots fine
post #2 of 15
1/20/11 at 6:52pm
post #4 of 15
1/20/11 at 7:00pm
post #5 of 15
1/21/11 at 2:13pm
post #7 of 15
1/21/11 at 2:45pm
post #8 of 15
1/21/11 at 4:15pm
post #10 of 15
1/21/11 at 9:08pm
post #12 of 15
1/24/11 at 1:54pm
post #13 of 15
2/7/11 at 3:41am
post #14 of 15
12/11/11 at 4:53am
post #15 of 15
12/11/11 at 8:28am
NotebookForums.com › Forums › Notebook Manufacturers › HP, Compaq and Voodoo Forums › HP, Compaq and Voodoo Notebooks › HP Probook 4520s no windows boot after memory upgrade, but linux boots fine







But I can be wrong.