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New MB doesn't power up

K

kasper22

Junior Member
Hi Guys,

I'm looking for experience or ideas on the problem I'm having with my new build. I just got a new ASRock AOD790GX/128M and a Phenom II 940.

I put together MB, Processor and 2 sticks of ram and tried to power up. Sadly all that happens is the fans get a quick spin and then shut off. It doesn't power up enough for even a bios beep or anything.

On the ASRock site it says the Phenom II is supported on bios 1.3 which was released recently, so I'm guess the board isn't running the newest bios. So one thing I'm thinking is that the bios could be the problem. The thing I'm not sure of is, would this be the correct behavior for a processor the bios didn't know. Or should the bios at least load and give me a beep code?

I tried the ASRock "support" but it's just a form and I got an email back that basically read, don't expect us to get back to you any time soon.

Thanks for any help.

Bryan
 
Recheck all your electrical connections. Make sur all your motherboard and video card power connections are good. Reseat all you motherboard cards.
 
Originally posted by: kasper22
Hi Guys,

I'm looking for experience or ideas on the problem I'm having with my new build. I just got a new ASRock AOD790GX/128M and a Phenom II 940.

I put together MB, Processor and 2 sticks of ram and tried to power up. Sadly all that happens is the fans get a quick spin and then shut off. It doesn't power up enough for even a bios beep or anything.

On the ASRock site it says the Phenom II is supported on bios 1.3 which was released recently, so I'm guess the board isn't running the newest bios. So one thing I'm thinking is that the bios could be the problem. The thing I'm not sure of is, would this be the correct behavior for a processor the bios didn't know. Or should the bios at least load and give me a beep code?

I tried the ASRock "support" but it's just a form and I got an email back that basically read, don't expect us to get back to you any time soon.

Thanks for any help.

Bryan
Click to expand...

Clear CMOS.

Try one stick of RAM.

What PSU are you using?

 
Hi guys

There are no cards on the board, video is integrated so nothing to change there.

Power supply is 500W PS that came with the case. (Which was pretty cheap)

CMOS sounds like it could be worth a try.

I'm still curious what will happen with an "unsupported" cpu. Does the computer boot or can someone confirm this issue isn't from the cpu not being supported.
 
An unsupported CPU would most likely cause the motherboard to beep.
Anything else would most likely be another part causing the problems.

This just sounds like a bad PSU.
 
Originally posted by: Quiksilver
An unsupported CPU would most likely cause the motherboard to beep.
Anything else would most likely be another part causing the problems.

This just sounds like a bad PSU.
Click to expand...

Yep.
 
Grabbed another PSU out of a machine I wasn't using. No luck there either 🙁. Tried clearing the CMOS and that didn't help, so I looks like this one was DOA.
 

Your PS starts the fans , then shuts itself down because the

feedback voltage/amps are TOO HIGH !

Usually this means an open trace or a solder tail shorting

somewhere . < amongst the 12V roadmap , not the 5V

system ( CPU & RAM ) >

Sooo , if your CMOS jumper is correctly set , then in my

humble & flawed opinion , RMA the board .

< for easy RMAs , always keep the original box & RECEIPT/INVOICE >
 

Ooops , forgot to mention to check the possibility of

mounting the mobo on top of some piece of conductive

hardware < wire-screw-nut >
 
Check your power connectors again. Specifically, look in your manual on page 13, for items #3, #9, and #39.

I have this board and an X3 710 on a machine I built a few months back. It seems all the power connectors are required, even the "SLI/Crossfire Power connector" -- I'm not actualy using CF/SLI but the board won't POST without it connected.

  • Thread closed due to its age.

    AnandTech Moderator
    lopri
 
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