Hi, my sisters Acer M1640 desktop will not boot. Powers on, fans spin, DVD drive activates but no beeps, no post, no display.
A while back Westom was helping with a similar problem and he said he needed PSU voltages as that can give a lot of information;
Multimeter readings for PSU:
(Power to PSU, Computer off);
Orange 0.0v
Red. 0.3v
Blue. 0.0v
Grey. 0.0v
Purple. 5.02v
Green. 4.05v
Yellow. 0.0v
(power to PSU, computer switched on)
Orange. 3.30v
Red. 5.06v
Blue. 11.44v
Grey. 5.06v
Purple. 5.02v
Green. 0.0v
Yellow. 11.94v
Also POST code reader with four digit readout gives just two codes when computer powered on: 01 F0 & 02 F8
Is this enough data to isolate fault; PSU, Cpu, bios chip or other motherboard issue?
Thanking you in advance for any help you can provide.
A while back Westom was helping with a similar problem and he said he needed PSU voltages as that can give a lot of information;
Multimeter readings for PSU:
(Power to PSU, Computer off);
Orange 0.0v
Red. 0.3v
Blue. 0.0v
Grey. 0.0v
Purple. 5.02v
Green. 4.05v
Yellow. 0.0v
(power to PSU, computer switched on)
Orange. 3.30v
Red. 5.06v
Blue. 11.44v
Grey. 5.06v
Purple. 5.02v
Green. 0.0v
Yellow. 11.94v
Also POST code reader with four digit readout gives just two codes when computer powered on: 01 F0 & 02 F8
Is this enough data to isolate fault; PSU, Cpu, bios chip or other motherboard issue?
Thanking you in advance for any help you can provide.