HP dc7800 Convertible Minitowers does not restart

I recently bought a used HP dc7800 Convertible Minitowers. It works fine, but there is a question I leave me puzzled: whenever I restart the computer through Windows, it will not start correctly. Sometimes it shows the HP splash screen and goes just a black screen, and sometimes it shows the HP splash screen and restarts repeatedly. What is more strange is that shut down the computer and put on still work manually, and the computer will boot normally.

System information:

OS: Microsoft Windows 7 Ultimate 64 bit SP1

CPU: Intel Core 2 Duo E6550 2.33 GHz

RAM: 6.00 GB Dual - Channel DDR2 @ 398 MHz (6-6-6-18)

Motherboard: Hewlett-Packard 0AACh (XU1 PROCESSOR)

HARD drive: 149GB Western Digital WDC WD1600AAJS-60B4A0 ATA Device (SATA)

I agree Rick, that may be the problem.

I don't see any BIOS date of issue (look under Vista) have nothing to do with Bitlocker or or boot up/reboot issues.

I don't have the latest BIOS installed 1.32 at the time.

I bought the PC used on eBay and the seller had put W7 Ultimate 32 bit on it without loading the drivers, etc. and just shipped.  Nor have I received any key disk or installation products.

I got such a lot of things on it and I didn't care what OS he had.

I wasn't going to let on in any case, because my plans were max out of the memory of 8 GB and install my copy of W7 Pro x 64.

In any case, I just tried but updated the BIOS to get W7 Ultimate to work normally (just to see if I could help all the other people who were stop and start loop question).

Everything I tried was unsuccessful.  And the thing is, some people dc7700/dc7800 ran very well with W7 Ultimate.

It was just a handful of us who could never make it work right.

My suggestion you Cinos, must abandon all hope to get to work and install W7 Pro or home (if you do not need to connect to a domain).

No one I know has reported to solve this issue.

Tags: HP Desktops

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