Comp will not start after installing new MoBo.

Daugusta · 12-11-2008, 06:58 AM

*Not sure if this is in the wrong forum, if so im sorry and please move it*

Well. my comp was running fine but in a month or so i want to get a new Quad core CPU, and my MoBo was pretty old ( about 1 year ) so it could not support Quad core. so i bought This Motherboard.
http://tinyurl.com/6fwz62

This MoBo replaced http://tinyurl.com/5chsgy

My power supply is http://tinyurl.com/6l89ob

so, i took apart my comp, piece my piece. and put it back together with my new MoBo and a new set of 4 gig Corsair memory. 2X 2gig sticks. i have rebuilt this comp 2 times in the past, but only to put it into a new case. and now when everything is hooked up correctly ( i have checked and rechecked the connection 3 times now ) when i click the power on button, nothing happens. when checking the main 24 pin ATX power cable, i plugged it into the Motherboard with the power supply on, the fan and light on my heat sink fan flashed for a second or so. thats all the activity i have got so far. any suggestions would be great. thanks.

**simpswr** · 12-11-2008, 07:07 AM

and welcome to the Forum

Double check the eight prong CPU power plug . . that could cause the symptoms you describe

Otherwise, click the Bench Test link in my signature and follow those troubleshooting steps

richs08 · 12-11-2008, 07:08 AM

12v cpu plugged in correctly? can you take a photo of the board inside your case?

its the little 4pin under the cpu :D

http://www.newegg.com/Product/ShowIm...%20Motherboard

in that pic 4 pin cpu power connector

Daugusta · 12-11-2008, 07:12 AM

well, something i forgot to mention was, that when i got the power supply it has a 8 pin and a 4 pin power cable for CPU power. and my old Motherboard used the 4 pin. and my new one uses the 8 pin, and when i got my power supply the 8 pin one came with like 1.5 on the 8 pins melted a little bit. so i used a lighter and heated up the plastic around these 2 melted pin holes and used a knife and picked away at the plastic that was melted over the 2 copper pin slots. it fits in perfectly now, no problems.

Daugusta · 12-11-2008, 07:14 AM

that is my old Motherboard, im not using the foxconn anymore. ill take some pics and try to get em posted up here.

**simpswr** · 12-11-2008, 07:18 AM

Quote:

Originally Posted by Daugusta

well, something i forgot to mention was, that when i got the power supply it has a 8 pin and a 4 pin power cable for CPU power. and my old Motherboard used the 4 pin. and my new one uses the 8 pin, and when i got my power supply the 8 pin one came with like 1.5 on the 8 pins melted a little bit. so i used a lighter and heated up the plastic around these 2 melted pin holes and used a knife and picked away at the plastic that was melted over the 2 copper pin slots. it fits in perfectly now, no problems.

That could be the problem , , what ever caused the heat that melted the plastic may have shorted something in the plug . . any chance you have nother power supply you can try?

Edit: . . I saw this comment in the reviews

Quote:

I'm using this with a 4 pin cpu power supply connector with no issues, just be sure to plug it into the correct side (right) of the 8 pin mobo connector

You could try the 4 pin in the right side and see if that lets it start

Daugusta · 12-11-2008, 07:30 AM

ok, ill try that.

Daugusta · 12-11-2008, 07:38 AM

4 pin in the right side of the 8 pin slot did not work... ill post pics in a few mins. maybe those could help.

Daugusta · 12-11-2008, 07:54 AM

This is the 8 pin connector that i tried to fix.

This is The 24 Pin ATX Power cable.

This is My motherboard without my graphics card.

This is my Comp. no graphics card or Hard drives.

Quick question, not having my graphics card or hard drives in while trying to power on should not effect it, correct?

Daugusta · 12-11-2008, 07:55 AM

ill be back in a few hours.

**simpswr** · 12-11-2008, 08:51 AM

With no grafic card, you should get beeps . . that is a part of the bench test process

ben31 · 12-11-2008, 09:00 AM

when you put the mobo in the case, you did make sure that the bottom of the mobo isnt directly touching the case

Daugusta · 12-11-2008, 12:09 PM

ya, the MoBo is on the risers with non-washer screws to ground the board. and for beeps, my case does not have a built in speaker.

Daugusta · 12-11-2008, 01:29 PM

well, i did a bench test and it booted up. mem is fine as well, only thing.. need to format and reinstall Vista... /wrists. anyways, thanks alot guys ( oh, and my burnt 8 pin CPU wire works :)!!) thanks again.

**simpswr** · 12-11-2008, 01:47 PM

That would indicate something wrong with the way it was installed . . be very carefull when you reassemble it. . particularly look for extra risers that do not match your motherboard holes

12-11-2008, 06:58 AM	#1 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Comp will not start after installing new MoBo. Not sure if this is in the wrong forum, if so im sorry and please move it Well. my comp was running fine but in a month or so i want to get a new Quad core CPU, and my MoBo was pretty old ( about 1 year ) so it could not support Quad core. so i bought This Motherboard. http://tinyurl.com/6fwz62 This MoBo replaced http://tinyurl.com/5chsgy My power supply is http://tinyurl.com/6l89ob so, i took apart my comp, piece my piece. and put it back together with my new MoBo and a new set of 4 gig Corsair memory. 2X 2gig sticks. i have rebuilt this comp 2 times in the past, but only to put it into a new case. and now when everything is hooked up correctly ( i have checked and rechecked the connection 3 times now ) when i click the power on button, nothing happens. when checking the main 24 pin ATX power cable, i plugged it into the Motherboard with the power supply on, the fan and light on my heat sink fan flashed for a second or so. thats all the activity i have got so far. any suggestions would be great. thanks. Last edited by Daugusta; 12-11-2008 at 07:07 AM.

12-11-2008, 07:07 AM	#2 (permalink)
simpswr Moderator Hardware Team Join Date: May 2007 Location: Houston, Texas Posts: 8,935 OS: XP, Vista	Re: Comp will not start after installing new MoBo. and welcome to the Forum Double check the eight prong CPU power plug . . that could cause the symptoms you describe Otherwise, click the Bench Test link in my signature and follow those troubleshooting steps __________________ Rich MemTest86 \| BenchTest \| Virus/Trojan/Spyware Help \| How to Post a Screen shot \| PC running slow?]

12-11-2008, 07:08 AM	#3 (permalink)
richs08 Registered User Join Date: Dec 2008 Posts: 23 OS: win xp 32bit	Re: Comp will not start after installing new MoBo. 12v cpu plugged in correctly? can you take a photo of the board inside your case? its the little 4pin under the cpu :D http://www.newegg.com/Product/ShowIm...%20Motherboard in that pic 4 pin cpu power connector Last edited by richs08; 12-11-2008 at 07:09 AM.

12-11-2008, 07:12 AM	#4 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. well, something i forgot to mention was, that when i got the power supply it has a 8 pin and a 4 pin power cable for CPU power. and my old Motherboard used the 4 pin. and my new one uses the 8 pin, and when i got my power supply the 8 pin one came with like 1.5 on the 8 pins melted a little bit. so i used a lighter and heated up the plastic around these 2 melted pin holes and used a knife and picked away at the plastic that was melted over the 2 copper pin slots. it fits in perfectly now, no problems.

12-11-2008, 07:14 AM	#5 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. that is my old Motherboard, im not using the foxconn anymore. ill take some pics and try to get em posted up here.

12-11-2008, 07:30 AM	#7 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. ok, ill try that.

12-11-2008, 07:38 AM	#8 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. 4 pin in the right side of the 8 pin slot did not work... ill post pics in a few mins. maybe those could help.

12-11-2008, 07:54 AM	#9 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. This is the 8 pin connector that i tried to fix. This is The 24 Pin ATX Power cable. This is My motherboard without my graphics card. This is my Comp. no graphics card or Hard drives. Quick question, not having my graphics card or hard drives in while trying to power on should not effect it, correct?

12-11-2008, 07:55 AM	#10 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. ill be back in a few hours.

12-11-2008, 08:51 AM	#11 (permalink)
simpswr Moderator Hardware Team Join Date: May 2007 Location: Houston, Texas Posts: 8,935 OS: XP, Vista	Re: Comp will not start after installing new MoBo. With no grafic card, you should get beeps . . that is a part of the bench test process __________________ Rich MemTest86 \| BenchTest \| Virus/Trojan/Spyware Help \| How to Post a Screen shot \| PC running slow?]

12-11-2008, 09:00 AM	#12 (permalink)
ben31 Registered User Join Date: Nov 2008 Location: UK Posts: 59 OS: Vista Business	Re: Comp will not start after installing new MoBo. when you put the mobo in the case, you did make sure that the bottom of the mobo isnt directly touching the case

12-11-2008, 12:09 PM	#13 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. ya, the MoBo is on the risers with non-washer screws to ground the board. and for beeps, my case does not have a built in speaker.

12-11-2008, 01:29 PM	#14 (permalink)
Daugusta Registered User Join Date: Dec 2008 Posts: 42 OS: Vista Ultimate	Re: Comp will not start after installing new MoBo. well, i did a bench test and it booted up. mem is fine as well, only thing.. need to format and reinstall Vista... /wrists. anyways, thanks alot guys ( oh, and my burnt 8 pin CPU wire works :)!!) thanks again.

12-11-2008, 01:47 PM	#15 (permalink)
simpswr Moderator Hardware Team Join Date: May 2007 Location: Houston, Texas Posts: 8,935 OS: XP, Vista	Re: Comp will not start after installing new MoBo. That would indicate something wrong with the way it was installed . . be very carefull when you reassemble it. . particularly look for extra risers that do not match your motherboard holes __________________ Rich MemTest86 \| BenchTest \| Virus/Trojan/Spyware Help \| How to Post a Screen shot \| PC running slow?]