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Question

No signal + cut outs

Apr 20, 2018 11:41AM PDT

Hi, A friend of mine bought a second hand gaming pc which had the GPU removed by the previous owner. He's been using it for simple tasks for a number of weeks without issues but he's wanting to use it for gaming and the integrated graphics aren't up to it so I gave him one of my old graphics cards (Radeon HD777)

Since fitting the graphics card I haven't been able to get a signal from the monitor, I've tried the DVI-D , DVI-I and HDMI ports non of which gets a signal. I then removed the card assuming it was at fault but now I can't get a signal using the original integrated graphics and VGA cable!

The other issue is the PC shuts itself down 5-15 seconds after the initial start-up then turns itself back on and repeats this procedure although the interval vary. Sometimes it will stay running for a large period of time although still no signal. I thought possible PCU failure but my limited knowledge has brought me here Happy

Specs:
Radeon hd 777
intel i5
Foxconn H61MXE-K
pentium p4 model e-700 br

Thanks,
Jack.

Discussion is locked

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Clarification Request
That GPU is not known for low power.
Apr 20, 2018 11:49AM PDT

Is the PSU's +12V rail rated at over 30A? You probably want 40A to stay out of trouble.

Did you remove the GPU to go back?

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Answer
Just A Thought...
Apr 20, 2018 11:56AM PDT

I've seen a few such situations where the dedicated graphics card was removed but the integrated graphics was not re-enabled in Device Manager. In such cases, you should be able to boot into Safe Mode, go to Device Manager and re-enable the onboard graphics card.

That brings something else to mind. If you placed/installed the Radeon card into the computer without disabling the integrated card and enabling the new one, it could be causing the "No signal" problem.

It's worth checking.

Hope this helps.

Grif

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co
Apr 20, 2018 2:47PM PDT

Thanks for the replies!
It says 28 amp on the side of the PSU but the cut outs were happening without any graphics card installed so there was no draw from the GPU.

I've managed to start in safe mode and install the necessary drivers so everything seems to be working fine on that end but I've had it running for 2 hours without cut outs then I've had 3-4 in 5 minutes. I wonder if the CPU is overheating? Its very random though. It starting out constant then ran perfectly for 2 hours and then regular cut outs again.

Thanks again for the help Happy

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Clarity
Apr 20, 2018 2:51PM PDT

By 'necessary drivers' I mean the Radeon card and drivers are installed and everything seems good there. But cut outs regardless, graphics card inserted or not.

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Answer
Let's keep in mind this is ancient.
Apr 20, 2018 3:10PM PDT

In PC years it's very old. Your work could cause the old dried up heatsink compound to crack so you should deal with that by replacing all compound. But first inspect for BAD CAPS as this era machine sure did have them over and over again. If you don't know this issue, google BAD CAPS AND HOW TO IDENTIFY.

If you find BAD CAPS it's pretty much a junker.

Is the machine slimmed down as much as possible? We don't need the optical drive, more than one stick of RAM etc.

Post was last edited on April 20, 2018 3:36 PM PDT

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a
Apr 21, 2018 12:10PM PDT

Turns out the restart button next to the power button was sticking and causing random restarts.. All is well now I've removed the button, slightly annoying Happy

Thanks for the help guys Happy

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Good find.
Apr 21, 2018 12:13PM PDT

Rare to see this but a great find.