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CPU_LED red light and instant reboot p9x79

Last response: in Motherboards
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January 2, 2013 10:54:37 AM

Happy New Year everybody!

I've bought hardware for a new year, but I can not start it. After I install CPU, Power Supply and RAM into MOBO, and after try to turn on the computer - the red CPU_LED light flases for a second, and computer goes to reboot in about 5 seconds.

-all fans are working fine
-the green flash on the MOBO is working
-8pin & 24pin power supplies are connected well
-same situation both in ATX and without in (while MOBO is lying on the table)
-i've done my best while connection RAM - either it was connected in all blue slots, or it was connected just in 1 slot (D1), or it was 4 slots on one side, etc
-all CPU pins are well done, no damaging

the result is one - computer instantly reboots.

i've tried to upgrade BIOS to the last version - no effect ( http://event.asus.com/2012/mb/USB_BIOS_Flashback_GUIDE/ )
after that i've tried to restore bios defaults (cmos reset) - no effect after that at all

All hardware is brand new.
MOBO: ASUS P9X79 (RTL) LGA2011 <X79> 3xPCI-E+GbLAN+1394 SATA RAID ATX8DDR-III
CPU: CPU Intel Core i7-3820 3.6 GHz/4core/1+10Mb/130 W/LGA2011
RAM: Corsair XMS3 <CMX16GX3M4A1600C9> DDR-III DIMM 16Gb KIT 4*4Gb <PC3-12800>
PS: Cooler Master eXtreme Power Plus <RS-600-PCAR> 600W ATX (24+2x4+2x6/8pin)
a b Ĉ ASUS
a c 142 à CPUs
a c 145 V Motherboard
January 2, 2013 11:38:24 AM

Try booting it with a stick of memory from another manufacturer such as Kingston. Doesn't have to be a fancy stick, even an old 512MiB DDR3-1066 stick will do.
January 2, 2013 1:12:50 PM

Just tried do insert one DDR3 memory:

HYUNDAI / HYNIX DDR-III DIMM 2Gb < PC3-10600>

in different slots (tried all 8 slots) - nothing changed... same boot problem, CPU_LED red flash and restarts in 5 seconds
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a b Ĉ ASUS
a c 142 à CPUs
a c 145 V Motherboard
January 2, 2013 9:27:12 PM

Maxim N said:
Just tried do insert one DDR3 memory:

HYUNDAI / HYNIX DDR-III DIMM 2Gb < PC3-10600>

in different slots (tried all 8 slots) - nothing changed... same boot problem, CPU_LED red flash and restarts in 5 seconds


Sounds like something is damaged. Remove the CPU and check the pins to see if any are bent. If not, prepare an RMA
January 3, 2013 5:50:32 PM

Check the pins where the memory goes. One of them may be bent or have crud on them preventing them from connecting.
January 20, 2013 6:17:46 PM

I've had the SAME EXACT problem (Asus P9X79 Deluxe) ... been thourgh 5 RMA's so far ant the problem STILL occur's.

I've also RMA's all the componets to rule them out.

I think it's a flawed board all together! If I can get my $ back, I'll be switching brands permanetely.
October 18, 2013 7:56:22 AM

I'm having this exact issue. Maxim, did you ever figure out how to resolve this?
!