Build completely new rig and it’s not working

savak · Dec 27, 2005, 12:45 AM

I bought new, out of a box, components (Abit A8N sli, 1 gig ram, power supply, 3500ghz amd64, ATI x700, ninja box). I hooked everything together. When I hit the power button to boot up the system, poof, the power supply burned up (stinky smell came out of it).

So, I got a new power supply (Antec smart power 500w) and a new motherboard ( Abit kn8, socket 939 AMD 64 3500 with 24pins power). Hooked it up. Should work, right. .NOT. When I hit the power button nothing happens and I have High pitch sound from the power supply.

I hooked a different power supply that works in a different system and again the same high pitch sound comes up. It’s really weird.

I don’t know what the problem is. Any ideas?

ReDGuiTaR · Dec 27, 2005, 02:59 AM

your processor and/or graphic card might have been damaged the first time ...

H3X4D3C1M4L · Dec 27, 2005, 03:53 AM

Dead mobo.

Looks like it discharged some bad ass voltage on the mobo and fried it, probably something like 18 volts on a 12v line.

If it was a cheap noname PSU with no overvoltage protection it likely killed the parts.

Return them and just say it was defective as fast as possible.

ReDGuiTaR · Dec 27, 2005, 04:29 AM

but he changed the MoBo already ... only the proc and video card are the same ...

H3X4D3C1M4L · Dec 27, 2005, 04:41 AM

Well it probly still got fried.

If the power supply makes a whistling sound or a high buzz thats usually a sign of the mobo doing something wrong... but hey... it looks like something funky happened and now you've got a dead something...

Necrosis · Dec 27, 2005, 05:06 AM

I would first ask how much knowledge this person has with hardware. Secondly, if they made sure there wasn't any shorts any where.

savak · Dec 27, 2005, 08:18 AM

As redguitar mentioned, I replaced the motherboard with a brand new one.There isn't supposed to be any fried stuff. I didnt replaced the ram, video card, cpu and the box.

The weird part is, as I said before, I pulled out a working power supply from a diffrent system and hooked it up to the new system and the same hight pitch sound came out and nothing happened . When I put it back into the old system the power supply works fine.

Some tech told me, it might be some grounding issue with the box.

H3X4D3C1M4L · Dec 28, 2005, 02:07 AM

If you screwed the motherboard in with metal contacts, and the PSU connects to it, then its techncially grounded to the ground in your house.

If your house has grounding issues that could be why.

Considered buying a UPS and plugging into that?

savak · Dec 29, 2005, 04:08 AM

Bump

H3X4D3C1M4L · Dec 29, 2005, 04:18 AM

Why are you bumping....you know what you gotta try...

swimtech · Jan 1, 2006, 09:23 PM

OK, You know the power supply is good - to isolate any problems away from the box you could put together the mainboard, processor, ram, and video card (hook it up to a monitor too...) on a wooden table or other nonconductive surface (don't use the case) and see if the symptoms change. Don't hook up any drives or anything else. This test assembly will also tell you if you mounted the mainboard to the case the wrong way.

If it turns on and shows anything on the screen, you know you have a problem with the mainboard mounts or the case itself - turn it off by unplugging the power supply at the wall outlet. If you still hear the whine from the power supply and it doesn't start, then you still have a problem with one the components on the table in front of you.

Necrosis · Jan 1, 2006, 09:41 PM

With that whine happening I swear there is some thing shorted out. I know there is!

Another thing is to look at all your printer circuit boards, and areas where power comes in. If you see any burnt traces or scortch marks you've probably found the problem.

H3X4D3C1M4L · Jan 1, 2006, 09:59 PM

Also check capacitors for leaks or bulging.... I have heard of bad capacitors making whine noises

Dec 27, 2005, 12:45 AM	#1
savak HardwareHeaven Junior Member Join Date: Jul 2005 Location: Middle Earth Posts: 88 Rep Power: 0	Build completely new rig and it’s not working I bought new, out of a box, components (Abit A8N sli, 1 gig ram, power supply, 3500ghz amd64, ATI x700, ninja box). I hooked everything together. When I hit the power button to boot up the system, poof, the power supply burned up (stinky smell came out of it). So, I got a new power supply (Antec smart power 500w) and a new motherboard ( Abit kn8, socket 939 AMD 64 3500 with 24pins power). Hooked it up. Should work, right. .NOT. When I hit the power button nothing happens and I have High pitch sound from the power supply. I hooked a different power supply that works in a different system and again the same high pitch sound comes up. It’s really weird. I don’t know what the problem is. Any ideas? Last edited by savak; Dec 27, 2005 at 04:33 AM.

Dec 27, 2005, 02:59 AM	#2
ReDGuiTaR DriverHeaven Senior Member Join Date: May 2004 Location: Quebec , Canada Posts: 746 Rep Power: 0	your processor and/or graphic card might have been damaged the first time ... __________________ Zing a ling... zing a ling a ling ... A8N-E - A64x2 4600, 2048 Mb Kingston ram 400mhz cas 2.5 ( 2 x 1024 DualChannel ), Seagate 320 Gig 7200 16Mb cache S-ata 2, GeForce 7900GT 512MB, Enermax 460watt power supply, WindowsXP SP2.

Dec 27, 2005, 04:29 AM	#4
ReDGuiTaR DriverHeaven Senior Member Join Date: May 2004 Location: Quebec , Canada Posts: 746 Rep Power: 0	but he changed the MoBo already ... only the proc and video card are the same ... __________________ Zing a ling... zing a ling a ling ... A8N-E - A64x2 4600, 2048 Mb Kingston ram 400mhz cas 2.5 ( 2 x 1024 DualChannel ), Seagate 320 Gig 7200 16Mb cache S-ata 2, GeForce 7900GT 512MB, Enermax 460watt power supply, WindowsXP SP2.

Dec 27, 2005, 08:18 AM	Thread Starter #7
savak HardwareHeaven Junior Member Join Date: Jul 2005 Location: Middle Earth Posts: 88 Rep Power: 0	As redguitar mentioned, I replaced the motherboard with a brand new one.There isn't supposed to be any fried stuff. I didnt replaced the ram, video card, cpu and the box. The weird part is, as I said before, I pulled out a working power supply from a diffrent system and hooked it up to the new system and the same hight pitch sound came out and nothing happened . When I put it back into the old system the power supply works fine. Some tech told me, it might be some grounding issue with the box. Last edited by savak; Dec 27, 2005 at 04:44 PM.

Jan 1, 2006, 09:23 PM	#11
swimtech HardwareHeaven Extreme Member Join Date: May 2002 Location: North Carolina Posts: 4,040 Rep Power: 124 System Specs	OK, You know the power supply is good - to isolate any problems away from the box you could put together the mainboard, processor, ram, and video card (hook it up to a monitor too...) on a wooden table or other nonconductive surface (don't use the case) and see if the symptoms change. Don't hook up any drives or anything else. This test assembly will also tell you if you mounted the mainboard to the case the wrong way. If it turns on and shows anything on the screen, you know you have a problem with the mainboard mounts or the case itself - turn it off by unplugging the power supply at the wall outlet. If you still hear the whine from the power supply and it doesn't start, then you still have a problem with one the components on the table in front of you. __________________ It's not so much getting your way that matters or not - what matters is how you go about getting it.

Dec 27, 2005, 03:53 AM	#3
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	Dead mobo. Looks like it discharged some bad ass voltage on the mobo and fried it, probably something like 18 volts on a 12v line. If it was a cheap noname PSU with no overvoltage protection it likely killed the parts. Return them and just say it was defective as fast as possible.

Dec 27, 2005, 04:41 AM	#5
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	Well it probly still got fried. If the power supply makes a whistling sound or a high buzz thats usually a sign of the mobo doing something wrong... but hey... it looks like something funky happened and now you've got a dead something...

Dec 27, 2005, 05:06 AM	#6
Necrosis HardwareHeaven Extreme Member Join Date: May 2002 Location: Ohio Posts: 8,838 Rep Power: 131 System Specs	I would first ask how much knowledge this person has with hardware. Secondly, if they made sure there wasn't any shorts any where.

Dec 28, 2005, 02:07 AM	#8
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	If you screwed the motherboard in with metal contacts, and the PSU connects to it, then its techncially grounded to the ground in your house. If your house has grounding issues that could be why. Considered buying a UPS and plugging into that?

Dec 29, 2005, 04:08 AM	Thread Starter #9
savak HardwareHeaven Junior Member Join Date: Jul 2005 Location: Middle Earth Posts: 88 Rep Power: 0	Bump

Dec 29, 2005, 04:18 AM	#10
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	Why are you bumping....you know what you gotta try...

Jan 1, 2006, 09:41 PM	#12
Necrosis HardwareHeaven Extreme Member Join Date: May 2002 Location: Ohio Posts: 8,838 Rep Power: 131 System Specs	With that whine happening I swear there is some thing shorted out. I know there is! Another thing is to look at all your printer circuit boards, and areas where power comes in. If you see any burnt traces or scortch marks you've probably found the problem.

Jan 1, 2006, 09:59 PM	#13
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	Also check capacitors for leaks or bulging.... I have heard of bad capacitors making whine noises