no signal being sent to monitor, keyboard/mouse, USB

S

swindmill

New Member
I have an old pc that ran win '98, and I decided to mess around with it, and try and install linux. When I powered it up, the HDD spun up OK, and the CD and DVD drives powered on, but the monitor received no signal, the keyboard did not light up, and attached USB devices recieved no power. Where does to power to these devices come from? Or, in other words, how can I go about trying to repair this, if at all?

thanks
 
Chances are, the Power Supply Unit (PSU) has failed. Be sure you select one compatible with your motherboard-- older boards with two single line of pins connectors are AT-style, a single connector with a double row of pins is ATX. If your board has both connector styles, then it's your choice; ATX is easier to find.
 
swindmill said:
So, just because the computer powers on doesn't mean the psu is OK, I guess?
Click to expand...

Good question... The PSU provides various voltages for the computer-- +/-5vdc, +/-12Vdc, +3.3vdc...

The drives will operate off the +12vdc, but if there is no +5v, then the computer will not POST, nor will there be any USB power.
 
Where does to power to these devices come from? Or, in other words, how can I go about trying to repair this, if at all?
Click to expand...
From the motherboard which gets power from the PSU: so either the mobo or PSU has issues

So, just because the computer powers on doesn't mean the psu is OK, I guess?
Click to expand...
Correct but in your case, the computer hasnt powered on entirely so we cant consider it as "powered on"
 
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