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New Mobo and CPU, No Boot

post #1 of 6
Thread Starter 
So I grabbed a new MSI 785GT-E63 and an AMD Athlon 2 X3 455 (3.3GHz) from Newegg (*not for my sig rig*), installed them easy as pie, and now my system won't boot at all. Fans come on, but no posting, and no power/signal is being sent to my peripherals (mouse, keyboard, and the monitor has no video). I don't have any way to swap out components to test if it's one or the other unless I take it to fry's or something so they can test it. Is there anyway to tell if this is a mobo or cpu issue? I would guess the mobo since the vid card is onboard and there's no video signal sent, which I wouldn't think has much to do with the cpu, but I would really appreciate some more educated opinions.

I was on vacation so my RMA time is running short, so I'm not sure which one I should send back (or if I can even send back both??)... Thanks for any help on this issue.
Edited by jpl517 - 6/5/11 at 9:58am
post #2 of 6
Quote:
Originally Posted by jpl517 View Post
So I grabbed a new MSI 785GT-E63 and an AMD Athlon 2 X3 455 (3.3GHz) from Newegg (*not for my sig rig*), installed them easy as pie, and now my system won't boot at all. Fans come on, but no posting, and no power/signal is being sent to my peripherals (mouse, keyboard, and the monitor has no video). I don't have any way to swap out components to test if it's one or the other unless I take it to fry's or something so they can test it. Is there anyway to tell if this is a mobo or cpu issue? I would guess the mobo since the vid card is onboard and there's no video signal sent, which I wouldn't think has much to do with the cpu, but I would really appreciate some more educated opinions.

I was on vacation so my RMA time is running short, so I'm not sure which one I should send back (or if I can even send back both??)... Thanks for any help on this issue.
Let's see if I can be of some help:

What PSU are you using with that system ? Have you tried it previously with another system, did it work ?

Have you seated the RAM properly ? Sometimes it looks like it's properly seated but it isn't. When components are new, some memory slots + new memory sticks are somewhat hard to insert.

Apart from that, I'd just advise you to make one last check to see if you forgot to connect any cable (CPU power cable for example).

All in all, it's very rare for a CPU to be DOA (but it can happen), so it's most likely the motherboard.

Cheers!
 
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post #3 of 6
Did you forget to plug in anything? i.e. 4-pin or 8-pin CPU power
post #4 of 6
Thread Starter 
Quote:
Originally Posted by tpi2007 View Post
Let's see if I can be of some help:

What PSU are you using with that system ? Have you tried it previously with another system, did it work ?

Have you seated the RAM properly ? Sometimes it looks like it's properly seated but it isn't. When components are new, some memory slots + new memory sticks are somewhat hard to insert.

Apart from that, I'd just advise you to make one last check to see if you forgot to connect any cable (CPU power cable for example).

All in all, it's very rare for a CPU to be DOA (but it can happen), so it's most likely the motherboard.

Cheers!
PSU is a 750W newton power that came with my dell xps 630i, it's worked fine before in that system for 2 years.

I tried multiple configurations with the RAM, including removing it altogether and still not even a post.

Also checked all the cables and everything's wired up except I had to use an adapter for an 8 pin cpu power cable to the 4 pin mobo plug, but I wouldn't think that would cause a problem.
post #5 of 6
Quote:
Originally Posted by jpl517 View Post
PSU is a 750W newton power that came with my dell xps 630i, it's worked fine before in that system for 2 years.

I tried multiple configurations with the RAM, including removing it altogether and still not even a post.

Also checked all the cables and everything's wired up except I had to use an adapter for an 8 pin cpu power cable to the 4 pin mobo plug, but I wouldn't think that would cause a problem.
PSU's normally come with the 8 pin CPU power plug in a detachable form factor, where you can connect only 4 of the pins if needed.

Just by accident, you didn't plug the PCIe power cable instead, did you ?

But even if you did it right, I've read very recently on this forum a user who had a voltage warning from the motherboard when booting up, turns out the culprit was an extension adapter for the CPU power (original cable wan't long enough to route it on the back of the mb plate). In his case he was using it to have better cable management, but he opted to remove the adapter, opt for slightly less elegant cable management, and the problem dissapeared. Don't know if your case is related tough.
Edited by tpi2007 - 6/5/11 at 6:04pm
 
Metro 2033 review
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Metro 2033 review
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Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
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post #6 of 6
Have you used standoffs to mount the motherboard?
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