PSU enough power ?

[Shamus MacNoob]

Stop windows from auto rebooting and look at the error message, also look into the event viewer and look for errors that are logged.

 

[lancer]

punkychan, is windows actually shutting down when it reboots or does it simply switch off and then start up again, much like it would if you pressed the hard reset button?

 

[Punkychan]

Dear Lancer and all the guys, sorry for the late reply as I had a meeting with my client this morning and was tinkering with the problem pc last night.
To answer Lancer's question - yes ! it is just like when you are surfing the net or clicking on to open folders - then it suddenly switch off and start again - as like you said "much like it would if you press the hard reset button"
I thought it was the video card and swapped the card last night - still happens.
PSU ?? Hard to say unless it is really dying out because used to hook up to 2 hard drives 2 optical drives 2 extra fans and 2 extra lightings mods - and was running well without glitches before.
RAM ? I did a Memtest and showed up okay - the only thing I didn't do was to run on 1 stick - (at the moment 2 sticks - 1 GB and 512 DDR unbuffered ).Anyway, already placed an order for a new psu (550W) and what else ?? yeah...I even did a fresh install in case I screwed up some of the registries...still the same.
Just a question : how do you type chkdsk/F - with the F parameters ? I tried but can only run chkdsk with no F parameters.How do you do it ?
In the event viewer it only showed application error.
Although I can still work with the other pc , but you know , having that box at home and your mind keep on cracking and saying 'why it won't work ' is the real bug.Any more suggestion ?

 

[Mainframeguy]

for chkdsk (and any command with parameters) you need a simple space after the command (IE CHKDSK /F). If it found no errors there is no point in rerunning though....

How long did you let memtest86 go for? Ideally you need like eight passes successful on the entire ram... I know this takes a looooong time....

What sort of thing was the application error in the event log? I would seriously try experimenting with your RAM sticks anyway, easy to do and if it fixes it you know right off....

I am suspicious of a hidden BSOD also - have you turned off the restart on failure in control panel > System > advanced > startup and recovery ?

Also check errors written to event log is checked there while you are there....

post back on all these if it is still buggin you

 

[Punkychan]

okay will do that as soon as I get back home and will post again.thanks
Memtest was done till 8...yes 8 ! no errors there

 

[Punkychan]

now at home testing....been running for the last 2 hours...seems okay ( till now ) will get you all posted to see if it happens again.
Completely took off everything and re-inserted all the cards,connectors,cables and whatever is in the box.