Hello, My Compaq Presario 750US will

Hello "A"
Well, start verifiying these:

1) Bad Module Ram
2) reseating video card.

some other problems, more deepest are bad capacitor, near the CPU.

wwats happening is you may have 1 of your simm memory chips that are bad theres a small cover on back of laptop that is about 3.5 x 3.5 inches square take off that plate and youll see 2 memory simms take out 1 and reboot if problem persist try removing other and putting first one back then reboot if problem persist put simm back in again then reload windows using your disk and reinstall windows that will fix this issue your having your lcd sounds like its fine though

Having the same issue. Did you find a solution yet?

HI

thank you for using Fixya

i would like to inform that your problem is indicates 2 isuue

1 your Windows is not working properly repair windows if know that how to repair

2 RAM is not supporting

frist try to replace your RAM then Try to on hope fully it will work normaly

try to chk ac adaptor connected properly n at connection you get a blue or wht light

Hello,
Try restoring the system to the last best configuration by going to Accessories on your Start Menu and clicking on System Tools>System Restore and find a day on the calendar and click on it to restore back to that date.
Regards.

I'm sorry to say this sounds like a system board failure. On my HP DV200t, a very similiar issue occured, eventually only the led where you plug in the power cord would turn blue. I replaced the system board and all the issues went away.
Hope this helps, and I am sorry to be the bearer of bad news.

sounds like your power supply is going bad

Try removing the battery (which may be bad) and only have ac power connected.

RDO