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Asus Rampage V extreme cannot boot

Ralf111
Level 7
Hi to everyone,i have problem with my new build PC it work fine for last 3 weeks and today after i restarted it want boot anymore.
Red led cpu flash and i have error code on motherboard AF,i tried already remove all ram sticks then just leave one of them but this doesn't help also
clearing CMOS and removing battery not help at all.i can't go into bios to change it into default settings.


Pc spec
Intel 5960x
Asus rampage v extreme
Psu 1000w gold power supply
Ram corsair dominator platinum 16gb
Cooler master Nepton 280L
19,654 Views
24 REPLIES 24

Chino
Level 15
When your system hangs at the AF QCODE, do you see anything on your monitor? Also, do any of the QLEDs remain lit?

Ralf111
Level 7
I can't see anything on my monitor,there is one more led on motherboard which is orange or yellow and state as Bios led2 this also flush no other reamains

Chino
Level 15
There are 4 QLEDs beside the 24 pin connector on your motherboard. Please locate then and tell me if any of the 4 remain lit.

Ralf111
Level 7
No other remains lit just one cpu red led,minute ago I disconnected all hard drives etc,and when I try start again it goes into 79 error code for about 30seconds there goes back to AF Code

Chino
Level 15
Try reseating your CPU. Also inspect the CPU socket for any bent or missing pins while you're at it. When you're reinstalling the Nepton 280L, make sure you aren't overtightening the screws.

Ralf111
Level 7
No missing pins or bents everything looks very well,I tried with different PSU but it doesn't help,still getting same AF error

Chino
Level 15
Please confirm that you have connected the 8 pin and 4 pin power cables.

Try updating to the latest 0802 BIOS. You can find it in my signature. Use an USB pendrive and the EZ Flash utility in your BIOS.

Ralf111
Level 7
I forget mention that when try start my pc all fans going at full speed and stays at it,Yes or cables are connected 8 & 4 pin,the question is how can I update bios
without going into it

Ralf111
Level 7
Somehow I was able go to bios settings after pressing safe mode button hundred times it let me go to bios then I updated bios to latest 0802 it let me go to the bios
settings once again but it wasn't normall start again I pressed mem ok and safe mode button,but now It want start anymore as before AF code is displayed.