Crosshair V formula red CPU led / no Bios post screen / black screen

[lun]

Hi all,
at first I want to apologize for "bad" english.

I want to share with you my problem, and ask for your help.

I have a Crosshair V Formula based PC with AMD FX8150 CPU. After changing normal cooling to water one, my PC get red CPU led. The PC don't want to start and I cannot see bios screen. This CPU have worked fine in this motherboard earlier, pins are ok. I have tested motherboard with another CPU (pulled out from working PC), and I get the same red light. With rebuliding the cooling system I have changed GPU, PSU and casing. Ram's are the same. All power plugs are connected.
Now my question is: what can I do? 🙂 What kind of checking, debuging can I make to troubleshoot this situation?
I know there is lot of similiar topics on forum, but non of them have a solution that is proper for me.
The CPU is ok, the motherboard work with this CPU and RAM before changing the cooling system, PSU have enough power (1200 Watt Thermaltake).

Regards,
Rob

[collector]

is my cpu dead? I dont think so but I m not wear anti static wears. I am always doing this for clean my pc nothing to do my pcs parts. you said to As to why or what happened there are many things. Static electricity is one that could hurt or kill your motherboard/CPU

What to do.

Do a full CMOS clear.

Remove all PSU connectors from the motherboard
Remove the mouse and keyboard
Remove the VGA
Remove the HDD
Remove the motherboard from the case
Remove the battery
Place the motherboard on the motherboard box
Press the power button to remove any residual charge from the motherboard
Clear the CMOS
Leave the motherboard for 12 hours or overnight
Reseat the CPU
1 VGA
1 stick of ram in the furtherest slot from the CPU
Mouse and keyboard
12v PSU connector
24 pin PSU connector
Power on and your system should start

Once you are in BIOS F10 and enter then power down.

Reassemble your PC

Hope that works out for you. I didnt replace any cable or vga and rams İ will try these things this weekend and I will tell u resullts hivizman. ok

[HiVizMan]

I will hold thumbs my friend please do let me know.

🙂

[collector]

ı trust you hivizman 😄

[collector]

hi hıvızman

my board came back one month ago an it was worked

bu last week.. ı clean my vga card an mootherbard dont open again

no post
no screen
no led ( all les is green )
no beep

bu system working..

ı removed all conectors
cpu
ram
and other cables
remove the battery

ı try another vga card
..... 😞 not worked


please help me.. ı will not want to send guarranty again...

what am ı do ?