My PC wont boot up since upgrade

Schmick

Reputable
Jan 20, 2016
2
0
4,510
Hello,

My PC was working fine until I decided to upgrade the existing PSU to a Corsair RM650 PSU and add 2 extra RAM sticks to increase the memory from 8gb to 16gb.

Since the upgrade my PC will not boot up. When I push the 'on' button on the PC case the computer turns on, then turns off, then turns on by itself and beeps 1 long beep and two shorts beeps. Also the q-code ‘FE’ is displayed on the motherboard.

The additional RAM is the same as the existing RAM so there shouldn't be any issue with compatibility.

I have undertaken the following troubleshooting without any luck of resolving the issue.
1. Switch back to the old PSU.
2. Remove RAM from motherboard and switch on the PC
3. Try each RAM stick individually in slot A2 and switch on the PC.
4. Remove GPU and add-on cards.
5. Reset CMOS by moving jumper to reset position.
6. Reset CMOS by removing battery.
7. Booted without HDD connected.

My PC specs are;
Asus z97 Pro (wifi)
Intel i5-4690k
16gb (4x 4gb) 1600mhz Corsair Vengeance LP
Asus Geforce 660GTX
Creative Soundblaster Z soundcard
Corsair RM650 PSU (650W)




 
your troubleshooting was very sensible, so I am reduced to daft questions.
1) did you fully insert the memory in the motherboard?
2) did you drop a screw down the back of the motherboard? (last resort, try running with mobo removed from case)
3) did you take anti-static precautions
 
Bad CMOS battery? Possibly when you swapped PSUs your BIOS settings were reverted to default due to a bad CMOS battery. This may/may not be causing issues with memory compatibility and/or cpu compatibility depending on when the motherboard was launched. I believe ASUS reserves the "FE" Q code for updates, and likely has no correlation to your issue.
 
A quick google search shows that FE codes are memory related issues most of the time, and over half the posts i read said that re-seating their ram solved it.

I would double check everything to do with your ram - pushed in fully, starting in correct slot, etc...

What was the exact model_no of your ram?

PS next time you buy a PSU get a tier 1 or 2 from this sticky:

http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html
 
Solution
When I said I believe ASUS reserves the FE Q code for future updates, I should have stated, ASUS reserves the FE Q code for future updates. This will pop up with most, if not all Q codes if not replaced in a BIOS update by ASUS. Memory issues just happen to be the most common problem. I would check that your memory is seated properly, and if you happened to mess with your cooler at all during this ordeal, that you didn't over tighten it.
 


Wow I thought the PSU I bought was of good quality. I think I might return it and get EVGA PSU.