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Odd reboot problem

A

andsmith79

Junior Member
I just built a new Intel Core 2 Duo machine and I'm having an odd reboot problem. When I reboot the computer the system actually turns off for a few seconds and then turns back on and POSTs normally. This happens no matter if I select the reboot option in WindowsXP or if I just press the reset button during POST.

This problem did not happen until I added a 250gig SATA drive. With my old 250gig IDE drive the system reboots normally. I have tried connecting the SATA drive with the SATA power cable and the normal 4-pin power cable with the same results. I had the SATA drive in another computer so I know the drive is good.

My system specs are as follows:

ASUS P5W DH Deluxe motherboard
Intel Core 2 Duo E6600 2.4 processor
Zalman 9500 LED CPU cooler
MSI 512mb RX-1900 Crossfire PCI-E video card
2gig Corsair Twin2x2048-6400 RAM
630watt Raidmax power supply
250gig Western Digital SATA hard drive drive

Any help you guys could provide would be greatly appriciated!!
 
That is a very VERY strange problem. Only thing I could think of is try updating the BIOS if you haven't already and try a different SATA slot on the motherboard. Otherwise I wouldn't worry about it. It sounds like a issue with the motherboard.

BTW when you say the system shuts down for a few seconds do you mean all fans stop, HD powers off,ect? Then everything just magically starts back up?
 
Thanks for the response! Exactly...the system shuts off...fans...hard drives...lights. Then it just turns back on and goes through POST. I have the most recent BIOS update according to ASUS's website. I am going to power the system down and try one of the other SATA slots to see what happens. I'll post an update soon.
 
if that don't work try playing around with the settings in power management in the bios. It sounds like a odd BIOS issue.
 
I hope that you didn't connect the SATA power cable and the molex at the same time, because that will damage the drive. Of course the SATA doesn't need any jumpers, but I'm wondering how you have the IDE drive set? I'm probably wrong, but I would try using cable select and if that didn't help, then as master. Anything but slave.
 
Hi Guys!

Sorry for the delay!

I found that resetting the BIOS to factory defaults allowed the system to restart normally. After resetting the BIOS to defaults I went ahead and enabled things one by one until the system started the funky reboot issue. THe one setting that caused the system to shut of and back on during reboot was the overclock settings. changin to to overclock to 5%, 10%, 15%, 30% (so on...) caused the system to totally turn off and back on during a reboot. Strange????
 
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