[SOLVED] New PC

Morningstar_ · 01-21-2009, 05:25 AM

Hi all,

I hope someone can help me with this puzzling problem.

I have just built a new PC and it keeps turning on and off with a couple of seconds of starting. I don't hear any beeps, so it doesn't reach the BIOS. I've tried a different PSU and get the same results even when I just have the MOBO plugged in. Any suggestions?

My specs are:
Motherboard: M3N-HT Deluxe Series
CPU: AMD Phenom X4 9950
CPU fan: OCZ Vendetta 2
RAM: OCZ PC2 6400 (2x 2G)
PSU: Antec TruePower Quattro 850 EC
HDD: Samsung 1TB SATAII Spinpoint F1 RAID
Graphics card: Nvidia GTX280
Sound card: Creative X-Fi Titanium Fatal1ty Pro Serie

dai · 01-21-2009, 05:49 AM

set it up out of the case on a piece of cardboard with
cpu
video
ram
speaker
and see if you get post
check you have the correct amount of standoffs no more no less
that they line up with the holes in the m/board
usually 9

Morningstar_ · 01-21-2009, 06:12 AM

I've had it out on cardboard. I've left all the things off that don't have to be on.
The MOBO light is on. All the fans start to turn, but it still turns on and off and on... etc.

Any other ideas?

P.S. Standoff are correct. 9 and no more touching the board anywhere.

dai · 01-21-2009, 06:32 AM

try a cmos reset

cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer

there can be 2 solder points you touch with a screwdriver
2 pins you touch with a screwdriver or use a jumper
a cmos clear switch or button
there will be a diagram and instructions in your manual

Morningstar_ · 01-21-2009, 07:15 AM

I removed the battery and used the jumper to clear the cmos. The replaced everything, but now instead it turn on and then turns off without coming back on again.

dai · 01-21-2009, 07:23 AM

leave if for awhile and see if it fires up again

check the heat sink is secure

redo the paste on it with some arctic silver

http://www.arcticsilver.com/arctic_s...structions.htm

Morningstar_ · 01-21-2009, 07:42 AM

The heatsink is secure and I have used a specialized paste, which you get here in Holland.

It still switching off between 1 and 5 seconds after switching it on. Very annoying.

dai · 01-21-2009, 08:14 AM

can you borrow either another psu to try in it,or it might be easier to borrow a lesser video card to try

Morningstar_ · 01-21-2009, 08:27 AM

I don't have a different PSU. I have tried to power just the motherboard without the graphics (because there is one on-board) and sound card thereby limiting the power, but the result is the same.

dai · 01-21-2009, 08:32 AM

can you check the psu with a multi meter

Morningstar_ · 01-21-2009, 08:39 AM

Not at the moment.

dai · 01-21-2009, 08:43 AM

what about a lower grade video card

Morningstar_ · 01-21-2009, 08:45 AM

I'm using the onboard graphics of the motherboard instead.

dai · 01-21-2009, 08:50 AM

have you removed the video card from the computer

Morningstar_ · 01-21-2009, 08:52 AM

Yes, I did.

dai · 01-21-2009, 08:55 AM

i have asked someone for a fresh look at the problem

Morningstar_ · 01-21-2009, 08:57 AM

Great, thanks for all your help so far. I really appreciate it.

**linderman** · 01-21-2009, 09:01 AM

have you tried with only one stick of memory in the slot closest to the cpu ...... then reboot

if no joy

try the other stick all by itself on the motherboard

has this set-up ever worked correctly before?

**linderman** · 01-21-2009, 09:04 AM

dp you have the 8 pin power plug installed which is located in the vicinity of the cpu socket ?

do you have the cpu fan header occupied by a working fan ?????????

Morningstar_ · 01-21-2009, 09:10 AM

I just tried it with one stick. No luck.

All the components are brand new and they haven't been used before. So the answer is: No, this set-up has never worked correctly.

My extra problem is that the store is only open between 11 and 5 (Mon-Fri) and I work every day. I can't take time off to go round there and deal with this. So anything I can try here before taking it back would be easier for me.

01-21-2009, 05:25 AM	#1 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	[SOLVED] New PC Hi all, I hope someone can help me with this puzzling problem. I have just built a new PC and it keeps turning on and off with a couple of seconds of starting. I don't hear any beeps, so it doesn't reach the BIOS. I've tried a different PSU and get the same results even when I just have the MOBO plugged in. Any suggestions? My specs are: Motherboard: M3N-HT Deluxe Series CPU: AMD Phenom X4 9950 CPU fan: OCZ Vendetta 2 RAM: OCZ PC2 6400 (2x 2G) PSU: Antec TruePower Quattro 850 EC HDD: Samsung 1TB SATAII Spinpoint F1 RAID Graphics card: Nvidia GTX280 Sound card: Creative X-Fi Titanium Fatal1ty Pro Serie

01-21-2009, 05:49 AM	#2 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC set it up out of the case on a piece of cardboard with cpu video ram speaker and see if you get post check you have the correct amount of standoffs no more no less that they line up with the holes in the m/board usually 9 __________________

01-21-2009, 06:12 AM	#3 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC I've had it out on cardboard. I've left all the things off that don't have to be on. The MOBO light is on. All the fans start to turn, but it still turns on and off and on... etc. Any other ideas? P.S. Standoff are correct. 9 and no more touching the board anywhere. Last edited by Morningstar_; 01-21-2009 at 06:14 AM.

01-21-2009, 06:32 AM	#4 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC try a cmos reset cmos reset turn the computer off remove the power lead from the back take the side off remove the cmos battery move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2 reinsert the battery put the side on replug in the power lead boot the computer there can be 2 solder points you touch with a screwdriver 2 pins you touch with a screwdriver or use a jumper a cmos clear switch or button there will be a diagram and instructions in your manual __________________

01-21-2009, 07:15 AM	#5 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC I removed the battery and used the jumper to clear the cmos. The replaced everything, but now instead it turn on and then turns off without coming back on again.

01-21-2009, 07:23 AM	#6 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC leave if for awhile and see if it fires up again check the heat sink is secure redo the paste on it with some arctic silver http://www.arcticsilver.com/arctic_s...structions.htm __________________

01-21-2009, 07:42 AM	#7 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC The heatsink is secure and I have used a specialized paste, which you get here in Holland. It still switching off between 1 and 5 seconds after switching it on. Very annoying.

01-21-2009, 08:14 AM	#8 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC can you borrow either another psu to try in it,or it might be easier to borrow a lesser video card to try __________________

01-21-2009, 08:27 AM	#9 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC I don't have a different PSU. I have tried to power just the motherboard without the graphics (because there is one on-board) and sound card thereby limiting the power, but the result is the same.

01-21-2009, 08:32 AM	#10 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC can you check the psu with a multi meter __________________

01-21-2009, 08:39 AM	#11 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC Not at the moment.

01-21-2009, 08:43 AM	#12 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC what about a lower grade video card __________________

01-21-2009, 08:45 AM	#13 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC I'm using the onboard graphics of the motherboard instead.

01-21-2009, 08:50 AM	#14 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC have you removed the video card from the computer __________________

01-21-2009, 08:52 AM	#15 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC Yes, I did.

01-21-2009, 08:55 AM	#16 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,575 OS: win 7 32x 64x rtm	Re: New PC i have asked someone for a fresh look at the problem __________________

01-21-2009, 08:57 AM	#17 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC Great, thanks for all your help so far. I really appreciate it.

01-21-2009, 09:01 AM	#18 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,437 OS: win 2000 pro / Win XP pro My System	Re: New PC have you tried with only one stick of memory in the slot closest to the cpu ...... then reboot if no joy try the other stick all by itself on the motherboard has this set-up ever worked correctly before? __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

01-21-2009, 09:04 AM	#19 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,437 OS: win 2000 pro / Win XP pro My System	Re: New PC dp you have the 8 pin power plug installed which is located in the vicinity of the cpu socket ? do you have the cpu fan header occupied by a working fan ????????? __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

01-21-2009, 09:10 AM	#20 (permalink)
Morningstar_ Registered User Join Date: Jan 2009 Posts: 15 OS: Windows Vista 64	Re: New PC I just tried it with one stick. No luck. All the components are brand new and they haven't been used before. So the answer is: No, this set-up has never worked correctly. My extra problem is that the store is only open between 11 and 5 (Mon-Fri) and I work every day. I can't take time off to go round there and deal with this. So anything I can try here before taking it back would be easier for me.