Computer gets no power at all

[bamaaviator]

Bought a ton of parts to build my first PC a week ago and just got them in.

Connected all the cables and had the PC up and running with Vista 64x.

Moved the CPU from my work location to my PC desk and plugged everything in and nothing happens now.

I have the thermaltek tr-2 500w powersupply with the Abit IP35 Pro motherboard.

I checked the 24 pin connection and its in firmly. What would cause my computer to no longer get any power at all?

The yellow light still comes on on the back of the powersupply, but other than that, nothing in my computer is getting any power at all?

What could have caused this and whats the best and worst case scenario? I hope to god that my new CPU and Mobo etc isnt fried.

I have checked the 3 power connections to the motherboard. The 20 pin and the 2 others and they are firmly seated. There is also no smell of anything burnt or anything, but Im getting absolute zero response from the PC now.

 

[Drsignguy]

Check to make sure all hardware connected to Mobo is secured properly First. Memory, vid card etc... also make sure that your power switch connector to the mobo is properly seated too. It may have come off.




BTW Welcome to the forums!!

 

[bamaaviator]

Stipped everything back down to the case and reinstalled everything. All connections are secured yet I still get zero power. Whats the best and worst case scenario?

Im praying I just have to replace the PSU, but I just spent 500 on the CPU and MoBo and hope that couldnt be bad as well.

 

[meatguy2006]

See if you can borrow a PSU from someone.

 

[bamaaviator]

What are the odds the PSU is the only problem>? I would cry if I had to replace my brand new processor or mobo

 

[Mondoman]

It's always a good idea to first try clearing the CMOS according to the procedure in the MB manual.

 

[brandonb]

The things that come to mind:

1) Power supply to the CPU is not connected, a 4 pin square power jack.
2) The switches that connect to the front panel. The 10 x 2 strip of pins that control IDE light, speaker, power button, reset button, etc isn't connected right.
3) The mothboard is grounding to the case, you need to make sure you use those gold screws betweeen the case and the MB to raise it off the case.

Thats about it. In my experience its usually one of those 3 thinsg.

 

[bamaaviator]

I will triple check again. I have the 24 pin cable connected to the motherboard. Then there is a 4 pin switch that fits right below where the video card would go, then there is a smaller power wire that fits towards the top left corner of the case. All 3 of these connections are solid, plus I have 1 six slot power cord running directly to the video card.

 

[Drsignguy]

Double check the power switch connection (on your case) to the motherboard. Seems like you have power to the board but you can't switch it on. Make sure those connections are in the right spot.

 

[Drsignguy]

Bump

 

[Muse]

Originally posted by: brandonb
The things that come to mind:

1) Power supply to the CPU is not connected, a 4 pin square power jack.
2) The switches that connect to the front panel. The 10 x 2 strip of pins that control IDE light, speaker, power button, reset button, etc isn't connected right.
3) The mothboard is grounding to the case, you need to make sure you use those gold screws betweeen the case and the MB to raise it off the case.

Thats about it. In my experience its usually one of those 3 thinsg.

I had the exact same zero response a few days ago and it was because I had that 4 pin connector on backwards. I couldn't tell by looking at it which way it went on.

To test if it's the power on button, you can remove the wires from the pin pair on the motherboard and short those pins with the blade of a thin screwdriver, which accomplishes the same thing as pressing the power on button.

Also, you can remove the PSU from the case or just remove the 24 pin plug from the motherboard and with a paper clip, short the green wire female pin connector to one of the ground connectors (black). That should spin up the PSU fan. If you have a multimeter, you can then test voltages of the PSU.

Here's a nice page that shows you how to do this along with great photos

 

[bamaaviator]

Took the computer to CompUSA for them to test it. Powersupply was good, so they connected it via a diff cable set and the motherboard caught on fire.

Some piece near the upper right hand quadrant of the motherboard went up in flames, hopefully that is the root of the problem.

 

[Muse]

Originally posted by: bamaaviator
Took the computer to CompUSA for them to test it. Powersupply was good, so they connected it via a diff cable set and the motherboard caught on fire.

Some piece near the upper right hand quadrant of the motherboard went up in flames, hopefully that is the root of the problem.

Yep. My last mobo died 3/5/08. Took out the vidcard, the next vidcard, the next PSU. I think everything else survived.

 

[nomagic]

I've fried my MOBO before with static from my hands, so anything could be possible.

Normally high-end MOBO would have LED indicators. Have you checked those? How did you come to the conclusion that the computer was getting no power?

Have you checked the 115 VAC/230 VAC switch?

Have you checked if the power switch is working?

 

[Drsignguy]

Originally posted by: bamaaviator
Took the computer to CompUSA for them to test it. Powersupply was good, so they connected it via a diff cable set and the motherboard caught on fire.

Some piece near the upper right hand quadrant of the motherboard went up in flames, hopefully that is the root of the problem.

Sorry about what happened on your big build there. Get the new Board and post some stats when you get going again!