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PC wont post, but powers up

716 views 15 replies 9 participants last post by  Psycho666  
#1 ·
I dont have the specific specs at the moment other than I know its a core 2 duo with a gigabyte mother board. Its a PC my friend and I built about a year ago, maybe a bit less like 10 months.

Basically the problem is the PC powers up, but doesnt beep or appear to post. This happened once before like a month ago and I reset the CMOS on the mobo and it worked fine. Today, he just called me up and said that its doing the same thing, it will power up but wont post. So I walked him through reseting the CMOS by crossing the 2 pins with a screwdriver and it still doesnt work.
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Assuming he did reset the CMOS correctly, what could it be that the pc doesnt post? I guess it could be a bad cpu? or could the mobo itself be bad? Anything else I can try that anyone could think of? Thanks alot for any and all help, as usual!
 
#3 ·
did he clear the cmos with the computer just shutdown or did he really pull the plug also? cause my mobo won`t reset the cmos when i just shutdown.
i assume this is with all mobo`s. other ideas...yeah the ram...other than that it could be a bad cpu or mobo
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anyways...good luck!
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#6 ·
Usually ram unless your power supply smells burnt, I've had that happen too!
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#7 ·
Ok, well we reset the CMOS and the PC is working again. We had to reset it with the power unplugged.

I got a list of the components we used for the build. It isnt overclocked, just everything installed and running. Its my friends PC so we didnt overclock anything for reliability/longevity.

Here is the parts list:

E6400 CPU
Gigabyte GA-965P-DS3 Mobo
OCZ2P800R22GK RAM
EVGA 8800GTS Video Card
Sound Blaster Xtreme Gamer

Now is there any reason why we have to keep reseting the CMOS in this rig? I have no idea why, but this is the 2nd time its happening. Could it be something with the ram glitching or something like that? Is there a way I can test it with memtest or something? I'm open for any ideas, thanks a ton!
 
#8 ·
Quote:


Originally Posted by Frankiebonez
View Post

Ok, well we reset the CMOS and the PC is working again. We had to reset it with the power unplugged.

I got a list of the components we used for the build. It isnt overclocked, just everything installed and running. Its my friends PC so we didnt overclock anything for reliability/longevity.

Here is the parts list:

E6400 CPU
Gigabyte GA-965P-DS3 Mobo
OCZ2P800R22GK RAM
EVGA 8800GTS Video Card
Sound Blaster Xtreme Gamer

Now is there any reason why we have to keep reseting the CMOS in this rig? I have no idea why, but this is the 2nd time its happening. Could it be something with the ram glitching or something like that? Is there a way I can test it with memtest or something? I'm open for any ideas, thanks a ton!

hey i got the same motherboard
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try replacing the cmos battery, it could be weak where it doesnt keep all the data and corrupts. OR hes trying to overclock and not telling you
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#10 ·
Quote:


Originally Posted by Frankiebonez
View Post

The rig is pretty damn new, only a year old... I guess the battery could be bad? Its worth a shot for 3 bucks I guess
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Yes change out the battery. The only other thing I could assume is if he unplugs or turns off the power supply when he shuts down, that could drain the battery since it doesn't have auxillary going through it. Also, when you clear CMOS try unplugging then hitting the power button a few times to clean the system of any power. My motherboard doesn't clear unless I do this, or wait like 10 minutes, which I don't cause I am impatient. Good luck! =)
 
#11 ·
yes to do a proper CMOS reset to be safe and not sit around thinking what the hell! i reset the cmos but its not working.... do this...

power down, unplug your psu... push your power button a few times to discharge it. pop out your battery and take out the 20(or 24) pin power cable and then switch the jumper. let it sit a few then plug it back in and go to town.

I just do this if your having wierd problems, not really necessary for a failed OC settign or something. do this if your regular quick version of a CMOS reset doesn't help yah out.
 
#14 ·
well...you can try some other ram in it and check if that works.
but i never heard of a problem like that!
again....good luck!