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Building computer

I've built many computers... having an issue with these two.

I am using the ASUS H81M-E MB.

I bought two of everything... building two computers.

I put one completely together and booted... nothing happens... never get to BIOS.

So, the second one I just attached the PS and front panel cables to the MB along with the i5-4590 CPU and video cable and same thing... CPU fan spins but that is the only sign of life.

No BIOS...

The little speak that is attached to the MB doesn't beep at all.

Thoughts?
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classnet
Asked:
classnet
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4 Solutions
 
rindiCommented:
Wrong RAM, wrong CPU, old BIOS (newer BIOS can sometimes get previously unknown RAM or CPU's to work, but of course you need working RAM and CPU for the upgrade).
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classnetAuthor Commented:
I believe that a MB should show some video error even without a CPU or RAM.
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_Commented:
bad/improper ram will usually give you a beep code, but a "bad" cpu, you won't get anything.
An "improper" cpu, may or may not show something.

Have you tried it out of the case, with just the bare minimum (known working cpu, video, 1 stick ram)?
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Larry Struckmeyer MVPCommented:
Remove the RAM, see if you get beep codes.  Be certain there is no screw or other metallic object under or on the mobo that can short.  Be sure you have the minimum PSU.  Be sure required secondary additional power connectors are connected.
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classnetAuthor Commented:
Both MB are out of the case and only have the CPU and speaker hooked up.  

CPU fans spin up and that is all.

Pop in 1 stick of RAM and no difference.
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_Commented:
I find it hard to believe (but possible), that 2 cpu or mobos are bad.
I will go with incompatible, for 200, Alex.
I need to track it down, but I seem to remember reading something about the "old" and "new" Haswell cpus and mobos, not playing well together.
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_Commented:
hmmmmmm... I don't see anything saying the 4590 is an E, though it does seem to be one of the "new" ones (Haswell Refresh). And I saw one benchmark, using the 8x series chipset, as opposed to the 9x chipset.      : /

http://www.xbitlabs.com/articles/cpu/display/intel-haswell-refresh_3.html#sect0
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nobusCommented:
it could also be you installed a "too new" cpu ; and need first a bios update
i have had several of these cases; then you need to install an older cpu first -then do bios update - then install new cpu

which cpu are you using ?  here the supported cpu + Bios version :
http://www.asus.com/Motherboards/H81ME/HelpDesk_CPU/
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KimputerCommented:
If you are sure you connect BOTH power supply cables to the mobo, then most probably you need an older CPU indeed to update the BIOS first.
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classnetAuthor Commented:
Everything seems to point to needed a BIOS flash on the MB to proceed.  So, I guess I need to return the MB or CPU as I cannot flash the BIOS since I don't have a CPU to do that with...
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rindiCommented:
You could take the system to a PC shop and either ask them whether they could test the board with another CPU, and if it works to upgrade the BIOS. If it works after that with your CPU, fine, if not, you'd just have to replace the not working part. Another option would be to ask whether you could borrow a CPU (or at least if you can return it with a refund). I've found such computer shops exist. There is one just around the corner to where I live, and I was able to borrow RAM etc.
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_Commented:
Thank you much.    : )
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