CPU DOA?

HaVoK-G2 · 12-10-09, 09:00 PM

Seasons greetings!

Need some help on an annoying problem.

Basically:

New system build for a friend, when powered on 4 LED's on the mobo light up, case fans start up and spin, CPU fan spins, no Video, no Post, no beeps/warnings. Computer just sits there with fans spinning and LED's on.

Motherboard has been Exchanged for a replacement, same thing happens with the replacement motherboard.

Freezer 7 fan doesn't spin on it's own, it has to be tapped to get going. Stock heatsync works fine (Happened on both motherboards, possibly defect with the Freezer 7 heatsync)

I've tried clearing the bios and reseating the CPU, rebuilding everything and checking all connetions. I've tried running it with bare essentials and anything un-needed unplugged.

Could this be an incompatibility problem with the mobo? Or is it a Dead CPU?

I told him to get a different brand mobo but he just replaced it >_<

I'd try upgrading the bios but there's no way for me to I don't think if it doesn't even start up. I don't have any extra compatible CPUs to try in the system.

Specs:
CPU: Intel i5 750 retail
Mobo: GIGABYTE GA-P55M-UD2 LGA 1156
Videocard: Asus EN9800 GT
HD: WD 640GB
Heatsync: ARCTIC COOLING Freezer 7 Pro Rev.2 (Tried stock too)
Ram: G.Skill Ripjaws DDR3 1866 PC3-15000 2048mb x2 (F3-15000CL9D-4GBRH)
PSU: OCZ Stealth Xstream 700W

If anyone can help, thanks.

Redeemed · 12-10-09, 09:08 PM

What PSU are you using, and what are the specs of the PSU?

It is possible that it is a defective CPU. Also possible that the fan for the cooler could be defective.

Make sure you didn't forget to connect all power cords to the motherboard... 24 pin, 4-pin for the CPU... etc.

HaVoK-G2 · 12-10-09, 09:21 PM

Quote:

Originally Posted by Redeemed

What PSU are you using, and what are the specs of the PSU?

It is possible that it is a defective CPU. Also possible that the fan for the cooler could be defective.

Make sure you didn't forget to connect all power cords to the motherboard... 24 pin, 4-pin for the CPU... etc.

PSU is OCZ Stealth Xstream 700W

I've triple checked all connections and even rebuilt it a few times to make sure I'm not missing anything, the 24pin and 4pin is connected etc. The freezer 7 is probably defective, I installed the stock one that comes with the i5 and that works fine.

Redeemed · 12-10-09, 09:22 PM

Well, I'd suggest replacing the CPU then. And even the HSF. Seems kinda' odd to get a defective CPU and HSF. But, it is possible.

HaVoK-G2 · 12-10-09, 09:37 PM

Quote:

Originally Posted by Redeemed

Well, I'd suggest replacing the CPU then. And even the HSF. Seems kinda' odd to get a defective CPU and HSF. But, it is possible.

I've tried the freezer 7 HSF and the stock intel supplies one, the intel one seems fine. I guess if my friend RMA's his cpu he'll get a new HSF in the retail box again.

Is the CPU the only thing left to be going wrong I guess?

Redeemed · 12-10-09, 10:06 PM

Quote:

Originally Posted by HaVoK-G2

I've tried the freezer 7 HSF and the stock intel supplies one, the intel one seems fine. I guess if my friend RMA's his cpu he'll get a new HSF in the retail box again.

Is the CPU the only thing left to be going wrong I guess?

That is what it is sounding like. If everything is connected properly I see no other alternative.

Wait- the video card... can you try it in another computer? Do you have another video card you can try in his?

**Rummy** · 12-10-09, 10:10 PM

Quote:

Originally Posted by HaVoK-G2

PSU is OCZ Stealth Xstream 700W

I've triple checked all connections and even rebuilt it a few times to make sure I'm not missing anything, the 24pin and 4pin is connected etc. The freezer 7 is probably defective, I installed the stock one that comes with the i5 and that works fine.

It actually looks like an 8 pin and 24 pin

HaVoK-G2 · 12-10-09, 10:19 PM

Quote:

Originally Posted by Rum Cooler

It actually looks like an 8 pin and 24 pin

It is an 8pin, sorry was a typo. (And yes the 12V(4+4Pin) from the PSU is plugged in and not just one 4 pin :P)

Video card I've tried in another computer, it works. I've also tried another videocard in his computer, still nothing.

Thanks for the help so far all.

Redeemed · 12-10-09, 10:40 PM

Quote:

Originally Posted by Rum Cooler

It actually looks like an 8 pin and 24 pin

To the best of my knowledge, most mobos only use a 4 pin in addition to the 20 or 24 pin- hence why I mentioned 4-pin.

If the video card is proven to work, then it sounds to me like the CPU is the culprit.

HaVoK-G2 · 12-10-09, 11:14 PM

I feared so, just making sure I didn't miss any quirks.

I just tried two different PSU's from working machines, ruined all my cable management in those machines >:O
My friend better appreciate it

I'm just going to tell him to refund the the current mobo and get a better one, aswell as exchange the CPU.

Thanks for the help, I really wanted to be sure.

Lyme · 12-12-09, 06:11 PM

Does the hard drive spin up? If yes, your cpu isn't dead. If no, it is very likely.

HaVoK-G2 · 12-13-09, 01:14 AM

It's too late he's sent it off for replacement, I believe I heard the HD power on and spin but I can't double check now.

Thanks though Lyme.

12-10-09, 09:00 PM	#1
HaVoK-G2 Registered User Join Date: May 2004 Posts: 68	CPU DOA? Seasons greetings! Need some help on an annoying problem. Basically: New system build for a friend, when powered on 4 LED's on the mobo light up, case fans start up and spin, CPU fan spins, no Video, no Post, no beeps/warnings. Computer just sits there with fans spinning and LED's on. Motherboard has been Exchanged for a replacement, same thing happens with the replacement motherboard. Freezer 7 fan doesn't spin on it's own, it has to be tapped to get going. Stock heatsync works fine (Happened on both motherboards, possibly defect with the Freezer 7 heatsync) I've tried clearing the bios and reseating the CPU, rebuilding everything and checking all connetions. I've tried running it with bare essentials and anything un-needed unplugged. Could this be an incompatibility problem with the mobo? Or is it a Dead CPU? I told him to get a different brand mobo but he just replaced it >_< I'd try upgrading the bios but there's no way for me to I don't think if it doesn't even start up. I don't have any extra compatible CPUs to try in the system. Specs: CPU: Intel i5 750 retail Mobo: GIGABYTE GA-P55M-UD2 LGA 1156 Videocard: Asus EN9800 GT HD: WD 640GB Heatsync: ARCTIC COOLING Freezer 7 Pro Rev.2 (Tried stock too) Ram: G.Skill Ripjaws DDR3 1866 PC3-15000 2048mb x2 (F3-15000CL9D-4GBRH) PSU: OCZ Stealth Xstream 700W If anyone can help, thanks.

12-10-09, 09:08 PM	#2
Redeemed Registered User Join Date: May 2005 Posts: 17,986	Re: CPU DOA? What PSU are you using, and what are the specs of the PSU? It is possible that it is a defective CPU. Also possible that the fan for the cooler could be defective. Make sure you didn't forget to connect all power cords to the motherboard... 24 pin, 4-pin for the CPU... etc.

12-10-09, 09:22 PM	#4
Redeemed Registered User Join Date: May 2005 Posts: 17,986	Re: CPU DOA? Well, I'd suggest replacing the CPU then. And even the HSF. Seems kinda' odd to get a defective CPU and HSF. But, it is possible.

12-10-09, 11:14 PM	#10
HaVoK-G2 Registered User Join Date: May 2004 Posts: 68	Re: CPU DOA? I feared so, just making sure I didn't miss any quirks. I just tried two different PSU's from working machines, ruined all my cable management in those machines >:O My friend better appreciate it I'm just going to tell him to refund the the current mobo and get a better one, aswell as exchange the CPU. Thanks for the help, I really wanted to be sure.

12-12-09, 06:11 PM	#11
Lyme Registered User Join Date: Aug 2003 Posts: 2,682	Re: CPU DOA? Does the hard drive spin up? If yes, your cpu isn't dead. If no, it is very likely.

12-13-09, 01:14 AM	#12
HaVoK-G2 Registered User Join Date: May 2004 Posts: 68	Re: CPU DOA? It's too late he's sent it off for replacement, I believe I heard the HD power on and spin but I can't double check now. Thanks though Lyme.