New System won't boot !!! (CPU suspected) ( Core 2 Quad ) FIXED Bent Socket Pin !!!!

[QuadFusion]

My new system won't boot up . It turns on for a second or so, then shuts down. I tried different startup configs of hardware, finally the system powered on and stayed on after I removed the CPU ( Core 2 Quad). Everything else seems to be working.

My motherboard is Asus P5K Deluxe. Someone told me that it could still be the MoBo. I put the CPU in Dell XPS system, but didn't work. I also put the pentium D from XPS in the new system, the system turned on for a second, then shut down, then turn on itself again and stayed on with all the fans, and leds working. But no display.

Power Supply seems to be in good shape, With all the fans coming on. GPU fan comes on, Optical drives work. Don't know anything about harddrive, because plugging or unplugging it didn't matter.

My conclusion is that it is the CPU, but Motherboard also is suspected. Please help me figure out this problem. I'm getting a cheap 775 socket motherboard from local store to test the CPU. If the CPU works then I guess I will RMA the MoBo.

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QuadFusion

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esquared
Anandtech Senior Moderator

 

[MegaWorks1]

Can you please write down the complete specs of system.

 

[QuadFusion]

Updated Specs ! Thank You...

 

[MegaWorks1]

Did you clear the motherboard cmos?

 

[exar333]

Good idea to get the extra Mobo to test the CPU. I would also get a different PSU to make sure yours isn't faulty.

I have not used the P5K, but make sure you have the CPU power cable connected near the CPU socket and also (if applicable) the additional molex power cable connected to the mainboard.

 

[QuadFusion]

Thanks guys. I just tested the CPU (Core 2 Quad) on a different (ECS 775 Socket) Motherboard. Computer starts up, but no display. Power stays on with this motherboard, so i guess different motherboards react differently to CPU problem. I'm almost sure now that this is a CPU problem, however I will check what "ExarKun333" mentioned. Thanks "MegaWorks1", I tried clearing cmos, but no success.

 

[myocardia]

Originally posted by: QuadFusion
My motherboard is Asus P5K Deluxe. Someone told me that it could still be the MoBo. I put the CPU in Dell XPS system, but didn't work. I also put the pentium D from XPS in the new system, the system turned on for a second, then shut down, then turn on itself again and stayed on with all the fans, and leds working. But no display.

That lets you know that it's either the motherboard or the power supply. Well, assuming you haven't made a mistake building the system, like forgetting to plug all power plugs into the motherboard, in the proper place, etc.

 

[QuadFusion]

Thanks a lot guys...

I finally figured out the problem, it was a freakin bend pin in the 775 socket...
I played around with it and finally the system booted..

Bios detected all componets, and showed right values for CPU.. However I do get CPU u code error on start up check (no OS installed)..
I this error just a bios problem ?

 

[MegaWorks]

Originally posted by: QuadFusion
Thanks a lot guys...

I finally figured out the problem, it was a freakin bend pin in the 775 socket...
I played around with it and finally the system booted..

Bios detected all componets, and showed right values for CPU.. However I do get CPU u code error on start up check (no OS installed)..
I this error just a bios problem ?

A CPU u code error..... hmm

I think your CPU is defective, maybe an RMA will do no? But before you do that try another Power supply.

 

[wwswimming]

I finally figured out the problem, it was a freakin bend pin in the 775 socket...
I played around with it and finally the system booted.

what tool did you use to fix the bent socket pin ?

 

[QuadFusion]

A very fine long needle !!!

 

[QuadFusion]

Also you need a magnifying glass when you work in that "nano scale" !!!