I have a problem with my pc it will not boot up it starts to boot then just turns off I cant get and diag done to troblem shoot the problem
PC specs
Win XP sp3
3gb ram DDR2
Celeron D...
now, this sort of shut down is difficult to diagnose on remote, i would suggest downloading your motherboard manual beforehand. before you do anything, i would suggest read in manual where is reset pin and how to reset bios to original state, but do not do that yet, it will lost all your mods settings and return m/b - bios to original state. there are several possible causes of that fault.
1. faulty memory stick
2. thermal or fault on power supply
3. thermal or fault on motherboard
4. corrupted bios
we will start with easiest to check re 1.
a. switch off your computer,
b. remove power cable from power supply,
c. remove side wall,
d. remove memory sticks and replace them with known working ones from another computer
e. reconnect power supply and switch computer on, if computer works correctly, you solved your problem and need to replace memory sticks
power supply is not much more difficult re2.
a. switch off your computer,
b. remove power cable from power supply,
c. remove power supply cables from motherboard and all accessories, do not remove power supplly from it's craddle yet
d. connect cables from new power supply to your motherboard and processor fan, connect them to your hdd and cdrom,
e. connect power cable to new power supply and start your computer, if computer run correctly, switch it off, remove old power supply and replace with new one
most tiddly bit... when you arrive here that meant that previous two did not solved your problem, re 3:
a. switch off your computer,
b. remove power cable from power supply,
c. disconnect all cables from your m/b
d. connect power supply to m/b and processor fan
e. connect ps2 keyboard
f. connect monitor if "all in one" m/b, video card and then monitor in any other case
g. insert power cable to power supply
h. switch on your computer
i. acess bios (that is usually done by tapping "delete" key, find in your manual) if possible, if not then:
i1. switch off power supply
i2. remove power cable from power supply
i3. re-set bios (you need to locate reset pins/switch/button on you motherboard in manual)
i3. reconnect power supply cable \
i4. switch on the computer
j. acess bios and set your thermal to 75centigrade or 80 centigrade and 5min
k. close bios saving changes
l. re-boot your computer and leave it for 10min, if computer still run, that will indicate your problem lies elsewhere.
checking auxiliaries:
a. switch off your computer,
b. remove power cable from power supply,
c. connect cd-rom
d. reinstall power cable and re-start your computer
e. allow 10min run and check if computer is still running
switch off. remove cable and connect your hard disk drive, run or switched off? if off, you need to check your hdd...
any other auxiliaries need to be connected again in steps and if finaly you find one which terminated boot up, this meant that this particular element is responcible and need replacing. you need as well consider that your power supply maybe perfect on the bench, but will be too small for load required adn simple upgrade to more powerfull mother board can solve the problem.
hope that half book on problem solving solve yours :-)
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