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913
Optiplex 755 won't boot
The computer worked for about a year, now won't boot I have 2 machines: Opti 755 (one with Service tag: if that helps) and three Optiplex GX620. All 5 worked for about a year (I bought them used), now NOTHING on the monitor. I tried installing a new video card, no luck. Any ideas?
ieee488
4 Operator
4 Operator
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11.1K Posts
0
February 11th, 2018 14:00
bad hard drives?
do the PCs boot?
hard to tell with this lack of information.
answerone
10 Posts
0
February 13th, 2018 05:00
I'm not sure, hard to explain. The power supply U cpu fan are running. BTW, I have 2 Optiplex GX620 that do the same thing.
No, they turn on, fans run, the light on the monitor blinks as if no signal. I've replaced with another video card, other cables, tried other monitors... nothin'!
speedstep
8 Wizard
8 Wizard
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47K Posts
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February 16th, 2018 11:00
Remove All Cards
Remove ALL RAM
Remove All hard drive data cables.
Turn on.
They should beep.
If they don't there is more wrong than is worth fixing.
Add 1 Known Working Ram stick and hook to the onboard VGA
They should then post with an error about no boot device.
At this point you should be able to F12 Boot a live Linux DVD.
If that works then Put the Hard drive back and F12 boot the DVD again and see if the hard drive is ok.
I'm not going to get into how to make a bootable Linux DVD.
You can buy one.
https://www.amazon.com/gp/offer-listing/B01MQZZ026/