Graphics gone

On-board graphics appear to have gone, so i got a cheap PCIe graphics card. No change. Is there much point in coming to a conclusion other than that the board has 'gone'?
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CEHJAsked:
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CompProbSolvCommented:
When you say "on -board graphics appear to have gone", what have you actually observed?

When you turn on the computer, what do you see in terms of the lights, more specifically the power and HD lights?  Do you hear any beeps at all?

If you have a wired keyboard, tap the CapsLock or NumLock keys and note whether or not the appropriate keyboard LEDs turn on or off.

Pull the RAM modules and then power up.  Do you hear any beeps?

With so little information, it is tough to know if you are having a video problem or if the system isn't trying to boot at all.
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☠ MASQ ☠Commented:
Depends on how much time you feel like investing in troubleshooting. If the PCI card is known to work then it does look as if the failure of the on board graphics chipset may just be a symptom of a bigger problem.
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CEHJAuthor Commented:
I've no reason to believe it doesn't work, unless the person who's just sold it to me is unscrupulous. I can't really test it elsewhere at this point
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CompProbSolvCommented:
A board from a scrupulous vendor could still be bad.  Unless someone tested it, is is very likely but not certain to be good.
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CEHJAuthor Commented:
When you say "on -board graphics appear to have gone", what have you actually observed?
"No signal" appears and remains on the monitor. The fan comes on. LED around power button is on. No beeps of any kind
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CompProbSolvCommented:
Any activity on the HD light?  What about the NumLock or CapsLock test?

Depending on the answers, it sounds more like a basic problem of the system not starting up, not a video problem.

If that is the case, disconnect everything from the motherboard except for the power supply, front panel switches, CPU fan, and CPU.  That is, pull all expansion boards, disconnect drives, and pull the RAM.  Then power it up.  If you don't get beeps from missing RAM, it is either a power supply problem or a motherboard problem.  It could be a CPU that has failed, but I've found those to be VERY rare (as long as the heat dissipator and fan are in place).
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CEHJAuthor Commented:
Thanks. I'll give that a try tomorrow
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RaminTechnical AdvisorCommented:
In addition to the above suggestions,  I would check / replace the data cable between Graphic port and Monitor port or test that monitor with another PC to find out if it works fine.

I would also clear / reset the CMOS    by removing the CMOS battery for a few seconds  to check if that is a corrupted BIOS data or a faulty onboard Graphic.

If your onboard Graphic supports another port like HDMI or DisplayPort, try to connect your PC to a TV via one of those ports.

Also make sure your onboard Graphic is not Disabled by BIOS settings.

Note: You might need to read the Motherboard's manual to clear / reset CMOS correctly.
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nobusCommented:
in order to get correct answers, post the pc model, or motherboard model plse!
here's how i handle this kind of problems - with a minimum setup
http://www8.hp.com/us/en/campaigns/hpsupportassistant/pc-diags.html

and at boot - do you hear the 1 beep, signalling end of post ?
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CEHJAuthor Commented:
If your onboard Graphic supports another port like HDMI or DisplayPort, try to connect your PC to a TV via one of those ports.
There is on the one i fitted to try to correct the problem

and at boot - do you hear the 1 beep, signalling end of post ?
No beeps. See above
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CEHJAuthor Commented:
If that is the case, disconnect everything from the motherboard except for the power supply, front panel switches, CPU fan, and CPU.  That is, pull all expansion boards, disconnect drives, and pull the RAM.  Then power it up.  If you don't get beeps from missing RAM, it is either a power supply problem or a motherboard problem.  
Pulled everything - no beeps
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nobusCommented:
remove the bios battery + powercord for a minute
then reinstall and tests again
first objective is to get into the bios
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RaminTechnical AdvisorCommented:
Did you clear / reset  CMOS by removing CMOS battery as I suggested above ?
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CEHJAuthor Commented:
CMOS out. Back in. No change
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RaminTechnical AdvisorCommented:
CMOS out. Back in. No change

Sometimes you need to place / set a jumper (CLR_CMOS) PINs to clear CMOS.

if you want to make sure , please read the Motherboard manual and Do it correctly.

if that didn't fix the problem then you can replace Power Supply / Mainboard as suggested above.

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☠ MASQ ☠Commented:
Time of death 13:28 :)
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CEHJAuthor Commented:
Thanks guys. The machine will be binned - not worth mending
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