My niece has asked me to fix her PC.....its quite old but not sure of exact spec but think its a Pentium rather than AMD.
Pc turns on, and fans operate in PSU and motherboard (processor), but nothing appears on screen and no BIOS beeps. All components are seated correctly and all connectors have been reconnected to ensure contact. Before this PC was freezing (would accept no keyboard or mouse input) or turned itself off.
I think its the PSU at fault but would welcome other views.....many thanks.
Thanks all for quick responses. For info screen, keyboard, power cable are all from one of my own working computers of similar vintage but fault is replicated. I will try a PSU replacemnet as I am unable to get any life out of it to download drivers or make a memory test.
Before you get a new PSU, it's worth checking DieSse's suggestions.
Check the capacitors on the motherboard - they should all be planted neatly and firmly on the motherboard. If one or more has 'lifted' off, and especially if there is any blackish residue underneath them, then the motherboard is dead. There are a number of other failures that could occur on the motherboard, but capacitors are the easisest to check and the most likely to have failed.
If you have another PC that will take your RAM then swap the RAM stick over and check.
If the processor needs reseating, do so, but make sure to reapply thermal paste.
Another PSU made no difference. Another BIOS battery made no difference. Cant check the RAM but all seating checked and okay. Cant see anything wrong with motherboard. Cleared all dirt from fans etc. I'm thinking its going to be a non starter.....probably a Motherboard fault........so will uninstall the HDD drive and install in another machine to get the files.
Disconnect hard drive / cdrom / floppy drive cables from the rear of the devices. If the motherboard has a graphics card and an onboard graphics slot. Take the card out and connect to the onboard graphics slot. Take out any PCI cards, i.e. cards in the white slots. If the motherboard is that old, take out any ISA cards. Just use one stick of memory at a time. Do not connect mouse or keyboard.
See if it POSTs.
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