Need your help !!

Sammanu · 27 May 2011 at 14:45

Ok so I have a problem with my PC at the moment and the problem consists of no power to the keyboard, mouse and no display on the monitor. My syste fan is spinning aswell as my CPU fan, and there are two beeps at start up.

I came to the conclusion that it was a faulty motherboard that I had, so I requested a replacement from overclockers to fix the problem...

Today I have recently been delivered my new motherboard, i have built my PC back up and the problem still persists!! Now i'm VERY unsure about what could be the problem!!??

PLEASE HELP ME

Sammanu · 27 May 2011 at 14:49

- Components -
Intel Core i5-2500K 3.30GHz (Sandybridge) Socket LGA1155 Processor

MSI P67A-C45 Intel P67 *B3 REVISION* (Socket 1155) DDR3 Motherboard - (Sandybridge)

Corsair XMS3 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit

Akasa AK-CCX-4002HP Venom CPU Cooler

Surveyor · 27 May 2011 at 14:51

Sammanu said:
- Components -
Intel Core i5-2500K 3.30GHz (Sandybridge) Socket LGA1155 Processor

MSI P67A-C45 Intel P67 *B3 REVISION* (Socket 1155) DDR3 Motherboard - (Sandybridge)

Corsair XMS3 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit

Akasa AK-CCX-4002HP Venom CPU Cooler

Power supply?

Graphics card?

Sammanu · 27 May 2011 at 14:53

XFX ATI Radeon HD 4870 1024MB GDDR5

&

OCZ ModXStream Pro 700w Silent SLI Certified Modular Power Supply

GaryH-21 · 27 May 2011 at 14:57

Can you see 4 LED's at the top of the motherboard? How many of these lights are turned on?

phil128 · 27 May 2011 at 14:58

Dodgy RAM, PSU, summat in the air.

Surveyor · 27 May 2011 at 15:02

To have the same problem with 2 motherboards sounds like user error. Either that or you're very unlucky.

Are you sure you have all the power cables plugged in?

24 pin and 8 pin on the motherboard.

6 pin connectors for the graphics card.

Motherboard standoffs installed?

Sammanu · 27 May 2011 at 15:03

GaryH-21 said:
Can you see 4 LED's at the top of the motherboard? How many of these lights are turned on?

There's only 1 light on at the top

GaryH-21 · 27 May 2011 at 15:08

Sammanu said:
There's only 1 light on at the top

Okay, this means "CPU is in 1 phase power mode"

Now just got to work out what that mean!

Try disconnecting absolutely everything apart from the processor, RAM and power supply and see if it gets any further. If it doesn't try using a single stick of RAM and see what happens.

:edit:

Do you mean there's only 1 light on? or there's literally only one light?

:edit again:

And you definitely have the big 24 pin connected from the power supply as well as the 8 pin connection?

Sammanu · 27 May 2011 at 15:11

GaryH-21 said:
Okay, this means "CPU is in 1 phase power mode"

Now just got to work out what that mean!

Try disconnecting absolutely everything apart from the processor, RAM and power supply and see if it gets any further. If it doesn't try using a single stick of RAM and see what happens.

:edit:

Do you mean there's only 1 light on? or there's literally only one light?

ok i'll try that, 1 phase light on out of 4

GaryH-21 · 27 May 2011 at 15:13

Cool - also check my other edit in that post

Sammanu · 27 May 2011 at 15:14

I disconnected everything apart from the cpu, ram and power supply.. When i booted it this time the CPU fan was running at 100%, which didn't happen last time

GaryH-21 · 27 May 2011 at 15:17

How many lights came on? Any beep codes? And you removed all usb devices as well?

Sammanu · 27 May 2011 at 15:33

GaryH-21 said:
How many lights came on? Any beep codes? And you removed all usb devices as well?

Still only 1 light, no beeps were given.. And everything is disconnected apart from what you said...

GaryH-21 · 27 May 2011 at 15:37

And just to clarify - You have the 24 pin connection and the 8 pin connection connected to the power supply, yeah?

Did you try only using a single stick of RAM? and if it didn't work, try the other stick?

Sammanu · 27 May 2011 at 15:50

GaryH-21 said:
And just to clarify - You have the 24 pin connection and the 8 pin connection connected to the power supply, yeah?

Did you try only using a single stick of RAM? and if it didn't work, try the other stick?

Yeah there both connected, and just tried the RAM switching and still no luck, and still displys the 1 light..

GaryH-21 · 27 May 2011 at 15:57

Sammanu said:
Yeah there both connected, and just tried the RAM switching and still no luck, and still displys the 1 light..

Well unless you've been extremely unlucky as managed to get 2 faulty motherboards or 2 sticks of faulty RAM, then the only thing I can think of is the processor

(but that's not certain yet!) Maybe try re-seating it, make sure it's definitely in properly. Do you have another power supply that you could test with it?

I'm still trying to find out the error codes / phase lights meanings but can't see it in the downloadable manual. I'll keep investigating!

Sammanu · 27 May 2011 at 16:00

GaryH-21 said:
Well unless you've been extremely unlucky as managed to get 2 faulty motherboards or 2 sticks of faulty RAM, then the only thing I can think of is the processor (but that's not certain yet!) Maybe try re-seating it, make sure it's definitely in properly. Do you have another power supply that you could test with it?

I'm still trying to find out the error codes / phase lights meanings but can't see it in the downloadable manual. I'll keep investigating!

Unforutnately i dont have another PSU i can test with, but i'll try re-seating the CPU now (But I think it's the CPU aswell tbh). I don't think it would be the motherboard again..

GaryH-21 · 27 May 2011 at 16:01

Sammanu said:
Unforutnately i dont have another PSU i can test with, but i'll try re-seating the CPU now (But I think it's the CPU aswell tbh). I don't think it would be the motherboard again..

Have the beeps still stopped? If so, try hooking up a monitor and see, just in case...

Sammanu · 27 May 2011 at 16:11

GaryH-21 said:
Have the beeps still stopped? If so, try hooking up a monitor and see, just in case...

Just tried that, still nothing...