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Fitted a lexmark all-in-one printer to packard bell pc, worked ok (ish) then froze (the pc) -when switching on quite noisy (red light stays on on front) monitor when switched on has green light then automatically switches to amber after a few seconds - tried switching on and tapping both either f5 or f8 but cannot get safe mode - any advice please? thank you

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I would hazard a guess at a possible power supply fan about to fail or cpu fan issue maybe causing an overheat problem.

I have included information for both below

disconnect the computer and take it outside. Open up the case and check for gunk on the fans and the PSU grills.

Take a can of compressed air meant for cleaning computere and blow as much as you can out (dont poke the nozzle into the PSU and waer glasses)

Computers they are designed nowadays to shut themselves down if there is a problem
What you should do is check the fan assembly and if it is loose at all that would give good reason to do what I am going to advise.
Disconnect the fan from the board.
Check your manual for the exact instructions but you should remove the cooler completely
DO NOT REMOVE THE CPU
Now with nothing more than isopropynol and cotton bud sticks or another alcohol based cleaner remove the old thermal grease / sticker from the top of the CPU (make sure it is clean)
At this point it is up to you but you could consider a newer better cooler
You could take your old cooler to a good computer shop show them it and just ask for a better one
If you are using your original cooler then here we go
Do the same with the underside of the cooler.
While the cooler is off it may be worth giving it a good 8low job
.
Now apply some new thermal grease (most computer shops have it)
Be careful about how much you put on
Here are some basic instructions
Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.
If everything went to plan you should now be back in business.
Another consideration is that many cases have places in them for extra fans and usually extra connections on the motherboard too.
They are quick and easy to fit.
Quite often I will fit TWO in what is called a push/pull configuration. One pulls cool air in while the other pushes hot air out


Ok now for PSU

Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard) also disconnect any drives. (REMEMBER HOW THEY WERE CONNECTED ! digitalcamera may be useful there) and power up
If you hear any beeps these can indictate where the fault is.

Power up the pc and see if the fans are working.
If not then double check the power connections to the board.
If you still have no fans it is time to suspect the power supply as the probable cause.
If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.
Now connect one drive only and boot again.
Repeat that until you identify the component that is giving you a problem.
Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem
If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it

Posted on Sep 05, 2009

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  • Computers & ... Master
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Get the memories card out and clean them up. 90% of the time is the memories card. While you do this, unplug your computer for a good 10 minutes. This suggestion is in case you don't get any video because of a hardware malfunction. If it's not the RAM, then most probably, you need another MB.

Posted on Sep 05, 2009

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Posted on Jan 02, 2017

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