Computer not starting

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20 Jul 2007
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295
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Preston
Went out today and bought a brand new mobo,cpu and ram so I could update to the new sandybridge cpu's.

Built it up and it doesn't start, so I took everything out of the case and onto my desk and plugged just the 24pin power cable and the 4 pin cpu cable into the motherboard and the cable to the case switch and it still doesn't start.

Any ideas?
 
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Well going on the information you have supplied, as the new motherboard will require a 24pin ATX power connector and a 4 - 8 pin power connector, I'd suspect maybe the PSU isn't up to the job.

However listing in more detail the component's you have MBD , CPU , RAM , PSU etc , will assist people in fault finding your problem
 
Sorry, I wrote the OP wrong, I am using a 24pin power connector and not a 16pin.

The power supply is 600watts and ran my q6600 perfectly fine so I cannot see why it shouldn't run this.

and the image below shows what I bought today.

buildq.png
 
Hi there, would you be able to tell us more about the rest of your system?

Specifically the make and model of the PSU and the model of graphics card you are using.

Also, which slots did you put the RAM into?
 
Hi there, would you be able to tell us more about the rest of your system?

Specifically the make and model of the PSU and the model of graphics card you are using.

Also, which slots did you put the RAM into?

There is no ram and graphics card installed but it should still atleast turn on without them there.

and the power supply is a Enermax liberty ELT500awt.
 
Good PSU.

When you say "turn on", what do you mean? Do you literally get nothing when you press the power button (no lights or fans spinning up)?

Have you got a spare PCIE GPU to hand to test with it?
 
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Not sure what post means but the cpu fan doesn't even start running, I've just tested my old mobo and cpu and it powers up.

When i turn it on nothing happened, no lights turn on, the cpu fan doesn't start. Its like no power is going to it at all.
 
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I would suggest testing it with a PCIe graphics card (any should do) and at least one stick of DDR3 RAM. See if anything appears on the screen.

Also, that PSU seems to come with an 8pin CPU/motherboard power connection (4+4), I would suggest using this since the board does support this.
 
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Just been back to the shop where i bought it to return the mobo and they found two bent pins, not a clue how they got bent. They straightened them back up and it looks as good as new but it still doesn't even slightly run.

Tried it with my newest graphics card and old, 2 sticks of ram and then just 1 but nothing seems to work :(
 
Try testing your PSU to see if it actually works. Connect the green wire to any of the black wires using a paperclip, which should power on the PSU if it works.
 
I see MSI are still up the usual standard then!!

Any way that your shop can test the mobo quick?? or borrow a PSU off someone... Although the fact that it ran the other rig fine, kinda suggests to me that it's the mobo.
 
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