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Old 05-03-2005, 11:10 AM   #1
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Default Build New Computer But Won't Start

Hello,

I just finished building myself a computer but it doesn't seem to work. When I push the power button on my case, the CPU fan spins and makes a buzzing sound for half a second before it stops. Nothing is connected except the CPU, the RAM and the front panel connectors of the case. I've tried reseating the CPU/heatsink and the RAM several times now, but it doesn't seem to help. I've also tried running it out of the case. I know it's not my PSU. I've tested it on an old computer and it works just fine.

Any suggestions on how to fix this?

Could it be that my CPU or motherboard is broken?

Thanks,
Jo
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Old 05-03-2005, 11:21 AM   #2
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Default Re: Build New Computer But Won't Start

Your MOBO might be fried. You might have givin it a static shock when you installed it.
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Old 05-03-2005, 11:55 AM   #3
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Default Re: Build New Computer But Won't Start

Find where the buzz is comming from. I suspect a short, or as Dishdog said, you just shocked something.
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Old 05-03-2005, 12:29 PM   #4
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Default Re: Build New Computer But Won't Start

sometimes the mobo power cable isnt plugged in right. happened to me. no big worry tho just open ur pc and push it in and jiggle it a bit even if it looks plugged in.
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Old 05-03-2005, 12:49 PM   #5
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Default Re: Build New Computer But Won't Start

Yeah.
You might find some boards also need an extra 12v conncetor which comes off the PSU too, as well as the long ribbon one. I know my ABIT AV8 does because this happened with mine until I connected this up and wahla. I also had a beeping though telling me something was up...well didn't need to be a genuis to know something was up
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Old 05-03-2005, 01:22 PM   #6
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Default Re: Build New Computer But Won't Start

I don't know what most boards use the extra 12v plug for, but my AN8 used it to power the procoessor fan. My first test boot was without that connected. The comp worked fine but the processor fan wouldn't spin. It worked fine when I plugged it in.
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Old 05-03-2005, 07:05 PM   #7
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Default Re: Build New Computer But Won't Start

Hmm..my whole computer wouldn't boot... it just beeped a few times and went off. The fans and everything did switch on...weird... I would definitely check for this though jococo
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Old 05-03-2005, 07:11 PM   #8
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Default Re: Build New Computer But Won't Start

Do you smell anything when it is turned on? You know where your jumpers are located just look to see if the jumpers are in there correct default posution and there not broken or something.
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Old 05-03-2005, 07:45 PM   #9
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Default Re: Build New Computer But Won't Start

I had a similar problem with my first comp until I realized that it wasn't properly spaced and connected to the case, you should check for that
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Old 05-03-2005, 08:23 PM   #10
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if its an asus from newegg that u got recently it mite be busted. my friend had an asus that was just bad when he got it and newegg told them that they were getting alot of complaints from that asus board. not sure exactly which one it was tho
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Old 05-05-2005, 09:25 AM   #11
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Default Re: Build New Computer But Won't Start

Actually, the buzzing only happens when I have the 12V PSU connector plugged into the motherboard. If pull it out, the PSU and CPU fans start spinning, but no LED lights from the case. The buzzing seems to come from where the CPU is located.

I am getting the same buzzing sound whether I run it from the case or from the motherboard box.

My motherboard is a Giga-byte 8S661FXMP-RZ. How can I check if my motherboard is broken?
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Old 05-05-2005, 09:28 AM   #12
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Default Re: Build New Computer But Won't Start

It should be the oppise, if you pull these out they should stop I'd think... and it shouldn't work without the 12v connection if it has one... weird...

The buzzing could just be a faulty fan on the CPU. Or possibly power going to it from a faulty connection

The motherboard seems bust to me i'm afraid
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Old 05-05-2005, 09:44 AM   #13
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Default Re: Build New Computer But Won't Start

Yes, you're right it doesn't work without the 12v connector. All it does is turn the fans on and nothing else. It says on the motherboard, the system will not start unless the 12v connector is connected.

I don't think it's the CPU fan since it spins just fine w/o the 12v connector.

Is there a way I can check if my motherboard is definitely the problem?
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Old 05-05-2005, 10:01 AM   #14
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Default Re: Build New Computer But Won't Start

Well I think the buzzing suggests that and the way even when connecting the 12v connector, it doesn't power up.

If your sure all the cables are in right, the CPU, the memory, then it must be the motherboard causing the problem.

Does it beep at all? Try connecting the speaker wire to the motherboard if your case has one to check if it does to suggest something

I wouldn't know if there was a sure way of telling though I'm afraid. I mean it could be the CPU too, but the motherboard seems more the culprit
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Old 05-05-2005, 11:07 AM   #15
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Default Re: Build New Computer But Won't Start

I had something like that when I got a bad 20 to 24 pin power cable from Ultra. What PSU do you have? 20 pin or 24 pin? Are you sure the sound is nto comming from the PSU?
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Old 05-05-2005, 11:11 AM   #16
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Default Re: Build New Computer But Won't Start

You stated it beeped, what was the pattern of the beebing, i.e. continous short beeps, or long.short.short?? or any patern?

This tells you what's the problem.
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Old 05-07-2005, 07:38 AM   #17
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Default Re: Build New Computer But Won't Start

Quote:
Originally Posted by Methost
I had something like that when I got a bad 20 to 24 pin power cable from Ultra. What PSU do you have? 20 pin or 24 pin? Are you sure the sound is nto comming from the PSU?
After checking it again, I found that buzzing is in fact coming from the PSU. It's an ATX-400W, 20pin. I doubt it's the 20 pin connector since it can power up the fans if I don't connect the 12V... But then again, I could be wrong..

So it's the PSU? Any suggestions before I get a replacement?
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Old 05-07-2005, 02:11 PM   #18
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Default Re: Build New Computer But Won't Start

If the cpu fan is faulty or not connected properly you will get nothing on the boot. No beeps, nada.
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Old 05-07-2005, 09:03 PM   #19
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Default Re: Build New Computer But Won't Start

i bet that ur mobo, just dosent really like ur processer ,lolz
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Old 05-07-2005, 09:22 PM   #20
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Default Re: Build New Computer But Won't Start

i bet that theres a pin difference or somethin
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