Hardware Thread, Not booting past POST in Technical; Iíve got an XP machine that for 50% of the time will not boot past POST. When it happens the ...
23rd June 2008, 03:02 PM #1
Not booting past POST
Iíve got an XP machine that for 50% of the time will not boot past POST. When it happens the machine will just sit there with the power light on and no video output. Ctrl + Alt + Del has no effect neither does pressing the reset button on the case. When in this state the only way to boot is to power down the machine then power back up. Iíve changed the power supply and reset the BIOS. Any ideas what else to try?
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23rd June 2008, 03:06 PM #2
Hmm tried reseating the RAM? Or different RAM?
Do you have onboard gfx or a card? Vaguely remember a similar problem where my gfx card was knackered..
23rd June 2008, 03:21 PM #3
Try reseating all add on cards and upgrading the BIOS to the latest version.
23rd June 2008, 03:22 PM #4
Thanks, I'll try that and see what happens
23rd June 2008, 04:01 PM #5
The symptoms you describe are normally PSU/Power problems, did you swap the PSU for an old one or did you buy a new one?
There is also a possibility that the PSU could be underpowerd, do the drives and fans spin up or just lights only?
Also double check the main P1 power plug and smaller P4 (if its a newer PC) are seated properly.
The fact your not getting any post beeps could also mean a dead cpu but as its tempremental we can almost rule that out but it could be that the CPU isnt getting enough power on a cold boot to run the post/bios.
Hope that gives you something to go on?
23rd June 2008, 04:06 PM #6
Also, if your GFX are onboard you need RAM to post, so try another RAM stick if you have onboard.
Last edited by CHR1S; 23rd June 2008 at 04:06 PM.
23rd June 2008, 09:24 PM #7
Thanks. I reseated the ram but it made no difference. Lucky I had a new stick of ram spare so that’s now installed and so far I haven’t been able to recreate the problem which is a good sign. I’ll know more on Wednesday when I’m back in school.
23rd June 2008, 10:30 PM #8
When i had a similar problem i replaced the PSU and that sorted it. Interested to hear if the RAM chage actually fixed it.
23rd June 2008, 11:07 PM #9
Do you have IDE optical or hard drives?
24th June 2008, 02:24 PM #10
Yes all the drives are IDE as the machine is around 4 years old.
24th June 2008, 02:28 PM #11
PSU is a prime suspect. Also run memtest x86 that will spot bad ram, leave it running over night.
24th June 2008, 06:19 PM #12
Try changing the IDE channel, one or two of ours have started doing this because of a dodgy IDE channel
27th June 2008, 01:22 PM #13
Update so far.
To recap the machine has a new PSU and new RAM and when I switched it on Wednesday morning the dam thing wouldnít POST. There are no add-on cards at all and I removed the IDE cables just to rule them out. I was now ready to scrap the machine so in a fit of madness I removed the CPU and refitted it. It's been ok since so fingers crossed thatís it.
Thanks for all the help and suggestions.
27th June 2008, 01:28 PM #14
It is pointing to a cold boot problem, which unfortunately means the motherboard itself is probably on its way out.
It is good practice to re-seat all components, such as memory and your graphics card etc... but if the problem keeps coming back, then you'll probably find it'll go to computer heaven at some point.
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