Sufficient PSU?

happy_2008 · 2 Oct 2011 at 18:37

CPU: Intel Core i7 2600k 3.4GHz Socket 1155 8MB Cache (Sandy bridge)
· Motherboard: Asus P8P67 Pro R3 P67 Socket 1155 8 Channel HD Audio ATX
· Internal Memory: Corsair 8GB (4x2GB) DDR3 1600MHz/PC3-12800 XMS3
· GPU: Asus GTX 550 Ti 1GB GDDR5 VGA DVI HDMI PCI-E Graphics Card
· Boot Drive: OCZ 120GB Vertex 2E SSD 2.5" SATA-II Read = 285MB/s, Write = 275MB/s 50,000 IOPS
· Storage Drive: 2 x WD 1TB 3.5" SATA-III 6Gb/s Caviar Black Hard Drive - 7200rpm 64MB Cache
· Drive: LG BH10LS30 10x BD-RE with DVD±RW SATA Blu-Ray Drive
· Case: Fractal Design Define R3 Black Pearl Case
· Power Supply: Be Quiet 530W Pure Power PSU
· CPU Fan: Zalman CNPS10X QUIET Ultra-Quiet CPU Cooler

Computer was running fine no problem then I changed the boot order priority and now the motherboard red VGA light is turning on stopping the computer from posting? Is the Be Quiet 530w sufficient to power this computer since I have a feeling that it's underpowered causing the problem?

olivier renault · 2 Oct 2011 at 19:19

the 550 is pretty lean and weak.

IIRC, the BeQuiet has 420W on 12V. You'll be using between 150W to 300W.

So plenty on the tap, if the PSU hasn't blown a gasket.

happy_2008 · 2 Oct 2011 at 19:41

So you saying my psu could potentially be my problem?

olivier renault · 2 Oct 2011 at 19:42

I don't know really. I don't see why your PSU wouldn't work.

You tried reverting the BIOS settings?

happy_2008 · 2 Oct 2011 at 20:21

Yep tried the removed battery and change jumper trick but to no avail! Strange since I only changed the boot options

Hyburnate · 2 Oct 2011 at 20:26

Do you get a nice whift of smoke from the PSU when you turn it on? Do you have another PSU you can try?

RJC · 2 Oct 2011 at 20:29

Can you try another GPU in your system or test the GPU in another system.

happy_2008 · 2 Oct 2011 at 21:31

Will test it next weekend when i have access to another computer to swap bits etc. No idea why it just stopped working

happy_2008 · 3 Oct 2011 at 11:39

Could there be any chance that the GPU is dead?

B@Th*nG · 3 Oct 2011 at 12:00

happy_2008 said:
Could there be any chance that the GPU is dead?

surely it would post beep?

I'm surprised nobodies mentioned any attempts to get it to POST. It's the most basic step of hardware fault finding:

Remove everything from the system which isn't necessary and see if it'll POST. IE. You want the CPU, PSU, one stick of RAM, and the Graphics Card plugged in and that's it. If it POSTS then plug things in one-at-time (leaving the boot HDD until last) and turn it on until you find the weak link.

If it still won't POST then swap the ram for another stick. If that won't work then try it with no ram; it should beep. If it doesn't beep then put the ram in and remove the graphics card. Again it should beep. If it won't beep through all of that then it's the MOBO, PSU or CPU; in that order. However, the PSU's the next easiest one to test, so swap that out to test first. You can figure out how to test the rest.

If it does POST successfully at any of these stages then you should have figured out what item is at fault and replace as necessary.

B@

happy_2008 · 3 Oct 2011 at 12:23

But its strange that it was working fine then all of a sudden it decides not to work

B@Th*nG · 3 Oct 2011 at 12:55

**** happens

B@

Ace Modder · 3 Oct 2011 at 13:00

Your system should be fine with that PSU. Sandybridge uses less power than other platforms, and your GPU isn't the most demanding card either.

happy_2008 · 3 Oct 2011 at 14:03

Confused as to why it just died then, hoping to source another GPU to determine the problem

Witcher1979 · 3 Oct 2011 at 14:46

Can you not just use onboard video to see if it posts?

happy_2008 · 3 Oct 2011 at 15:24

I dont think the asus P8 P67 Pro Rev 3 has a onboard video???

Witcher1979 · 3 Oct 2011 at 15:36

happy_2008 said:
I dont think the asus P8 P67 Pro Rev 3 has a onboard video???

WOW I thought all boards had onboard video. Shows I know nothing lol :confused:

happy_2008 · 3 Oct 2011 at 16:41

I have managed to source a 2nd GPU to try tonight

Fingers cross it will work

happy_2008 · 4 Oct 2011 at 09:16

Tried again last night with a different graphics card and the same thing happening with the Red VGA light. Seems as the motherboard has given up

B@Th*nG · 4 Oct 2011 at 13:28

If you boot it without a graphics card do you still get the VGA POST error? I assume you've done this:

B@Th*nG said:
Remove everything from the system which isn't necessary and see if it'll POST. IE. You want the CPU, PSU, one stick of RAM, and the Graphics Card plugged in and that's it. If it POSTS then plug things in one-at-time (leaving the boot HDD until last) and turn it on until you find the weak link.

If it still won't POST then swap the ram for another stick. If that won't work then try it with no ram; it should beep. If it doesn't beep then put the ram in and remove the graphics card. Again it should beep. If it won't beep through all of that then it's the MOBO, PSU or CPU; in that order. However, the PSU's the next easiest one to test, so swap that out to test first. You can figure out how to test the rest.

If it does POST successfully at any of these stages then you should have figured out what item is at fault and replace as necessary.

B@