I think motherboard died. Doesn't boot or beep

[supindahood]

I was building my new PC with the specs below, all brand new parts, when the build is complete I try to boot it, the motherboard shows Errors 55 and FE which I googled has to do something with RAM. So I tried inserting two pieces of old RAM, and the moment I insert the old RAM into the motherboard it just dies. It won't boot or show any sign of life. I've read the "read this thread before posting about motherboard" topics, and googled a bunch of issues and its still dead.

Here's a few examples of what I have done to try fix it
- Resetting CMOS
- Reinstalling CMOS Battery
- Tested each and both RAM slots with both old and new RAM
- Tried using CPU Fan instead of water cooler fan
- I stand alone tested the PSU and it works.
- CPU pins got bent. I bent them back as good as I could, still not working
- There is no damage on CPU
- There is no damage on RAM pins

I tried to return the motherboard, saying it was broken. They took a look and said the CPU pins are bent. I bent them back but it doesn't help.

Is it possible a motherboard can instantly die when plugging in old RAM?


Case: Corsair Graphite 380T White Portable Mini ITX Case
Motherboard: MB ASUS MAXIMUS VII IMPACT (Intel,1150,Z97,DDR3,mITX)
GPU: EVGA GeForce GTX970 SSC 4GB ACX2.0+
Memory: Crucial BallistixSport 16GB 1600MHz
CPU: Intel Core i5 4690K 3,5GHz
CPU Cooler: Corsair Hydro H80i GT
PSU: Corsair AX860i 860W


tl:dr
- I built a new PC from brand new parts
- It boots with a few errors
- I insert a pair of old RAM found in the room
- Motherboard suddenly doesn't work

 

[cin19]

You should careful to check the cpu socket to see there are other bent pins or not. Then try use only single new RAM to see you can boot or not.

Is it possible a motherboard can instantly die when plugging in old RAM?

In general it will not, but who knows.

 

[supindahood]

I bent back all the pins and it looks good. I tried single new RAM in each slot but nothing happens. Should I just order a new mobo or is there a way to repair this?

 

[cin19]

One more try before you buy the new MB, if you don't try Bench it - Troubleshooting http://www.tomshardware.com/faq/id-1753671/bench-troubleshooting.html start with cpu+cpu cooler+onboard iGPU without RAM and with one stick new RAM to see the PC can boot or not, if it can't then buy the new MB.

 

[supindahood]

Thanks for the replies, I believe I have tested booting it with minimum things needed like in the post you linked. Anyhow, I just ordered a new mobo. Im pretty sure this one is dead sadly. Didn't know a piece of old ram could instant kill a mobo!
And I have no idea how my cpu pins could be bent.