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ASUS P9X79 PRO: CPU LED light stays on

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November 2, 2013 4:53:06 PM

Just built this thing a day ago and keep running into problem after problem.

This time when I turn it on, the CPU LED light stays on and it reboots after about 5 seconds. The CPU LED light stays on after it reboots and nothing displays on the monitor. Everything is plugged into where it needs to be. I don't know what's wrong with it.
a c 114 à CPUs
a c 559 V Motherboard
November 3, 2013 4:17:29 AM

Check the 8 pin power cable. Make sure that it's properly connected.
What CPU using?
Did it work yesterday?
November 3, 2013 1:58:31 PM

alexoiu said:
Check the 8 pin power cable. Make sure that it's properly connected.
What CPU using?
Did it work yesterday?


If you're talking about the 8-pin socket above the CPU, it's connected. I'm using an Intel Core i7-4930k 3.4Ghz cpu. I took everything apart a couple days ago and saw that I didn't position the CPU correctly. Doing that fixed an earlier problem I had.

I tried contacting ASUS, but apparently when they say that their offices close at 3 p.m. PST, they mean 1 p.m. PST or earlier, so I'm going to have to try again tomorrow. Whatever.

I checked every connection and everything is good. I don't get it. Maybe I need to RMA the mobo or the CPU.
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a c 114 à CPUs
a c 559 V Motherboard
November 3, 2013 2:26:47 PM

The CPU requires a newer BIOS version. There's a barcode sticker on the mtherboard. The last 4 digits on that sticker stand for the board BIOS version.
November 3, 2013 9:44:25 PM

After I flashed the BIOS, it blinked a few times and went solid. Now my pc no longer turns off and on after 5 seconds, but the CPU's LED light still lights up.
a c 114 à CPUs
a c 559 V Motherboard
November 3, 2013 10:00:27 PM

The flash didn't succeed. What are the 4 digits?
November 3, 2013 10:31:48 PM

alexoiu said:
The flash didn't succeed. What are the 4 digits?


The sticker says 4005. I downloaded Bios 4502. I think I flashed it incorrectly. I downloaded the BIOS and changed the file name to P9X79PRO.ROM. I think what I'm supposed to do is download the flashback converter and rename that instead of the BIOS itself. Is that right?
a c 114 à CPUs
a c 559 V Motherboard
November 3, 2013 10:35:57 PM

No. You have to rename the file to P9X79PRO.CAP
Use a FAT or FAT32 formatted USB drive and the designated USB Flashback port.
The converter is not needed in your case (already CAP).
November 3, 2013 10:44:35 PM

alexoiu said:
No. You have to rename the file to P9X79PRO.CAP
Use a FAT or FAT32 formatted USB drive and the designated USB Flashback port.
The converter is not needed in your case (already CAP).


Ok, I'll do this tomorrow after I get off work and see if it works.
a c 114 à CPUs
a c 559 V Motherboard
November 3, 2013 10:47:52 PM

OK. Please post back the result.
November 4, 2013 7:21:11 PM

I think I discovered the problem. I noticed that some of the pins on the CPU socket on the mobo look bent and a few of the contact points on the CPU look damaged. I'm going to RMA them and get replacements.
!