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pc will not switch on

twohole

FPCH New Member
Joined
Sep 25, 2007
Messages
3
#1
Hi all i need some help i have just reformated and set up my pc all was ok, went away it was switched off for a week came to switch it on and it wont power up, ive tested the power supply and ony 5v from the purple when pluged in. i have a old pc tested the psu in it and it has all the correct vols from all the wires put it in my pc and the same only volts from the purple the red light comes on ny the ram and thats it any help please.

Thanks Andy
 

londonles

FPCH Member
Joined
Apr 22, 2007
Messages
48
Location
Essex
PC Experience
Very Experienced
Operating System
Windows Vista - Home Premium
#2
Hi Andy

Is this a pentium pc and if so have you plugged in the extra 4 pin plug?

Les
 

danzil

FPCH Member
Joined
Jun 29, 2007
Messages
885
Location
Gloucestershire
PC Experience
Operating System
#4
try removing the cmos battery for 15 -30 minutes,then plugging the psu back in,then powering on.
it maybe the bios has got stuck. rmoving the battery will revert it back to defaults.
regards
danzil
 

danzil

FPCH Member
Joined
Jun 29, 2007
Messages
885
Location
Gloucestershire
PC Experience
Operating System
#6
what exactly happens when you power it on,do the fans turn...do you hear any bios beeps etc
regards
danzil
 

danzil

FPCH Member
Joined
Jun 29, 2007
Messages
885
Location
Gloucestershire
PC Experience
Operating System
#8
does the 2nd psu work correctly in the pc you removed it from....
what model of board is it.
need to know mainly if the fans turn, and if there is any beeps at all
danzil