Hi all,

New to the forum and it's my first post here.
 
I'm having an extremely weird issue with my EVGA 1000GQ PSU + Biostar BTC250 combo and was hoping someone can help me out with the issue.
 
I am using an EVGA 1000GQ PSU with a Biostar BTC250 motherboard and a Celeron G3930. The 1000GQ PSU works perfectly fine on my other computers but it just will not boot/POST when i use it with this setup. I have had the PSU RMA'd twice from EVGA (btw support has been awesome) so i am pretty sure it's not the PSU.
 
When i use another PSU (CM V1000, EVGA 750GQ, etc) with this setup (Biostar BTC + Celeron G3930), the mother + cpu + ram combo boots fine as well, so i know it is NOT the motherboard, cpu, ram, or PC issue.
 
When i use both together however, i cannot for the life of me get the PC to boot regardless of what i do.
 
Is there such a thing as compatibility issue between PSUs and motherboards? This is highly unlikely as well as i have another one of my rigs running the 1000GQ with the Biostar BTC board.
 
I am really at my wit's end here and hoping someone can shed some light on this.
 
TLDR; PSU works in other system, mobo+cpu+ram works with other PSUs, but will not work when paired together!! I have double and triple checked all connections (24pin, 8pin, etc)!!
 
Thanks in advance!
 
I could easily get another PSU to run the motherboard as the primary PSU but this issue has been bugging me and i can't sleep at night if i don't find out what the issue is!

Odd issue.

The GQ uses different wiring than the standard G1/2/3 power supplies. It is possible the btc250 board has a different pinout than the usual.

I have 0 issues with this psu on my h81 r2 btc board.

Are you trying to use 2 psu at the same time on that one board? Are you using the molex on the board? I could not get my board to post using the molex from psu to board, I assume due to wiring of GQ cables. I ended up using all powered usb risers and no mobo molex.

Sounds like your mobo is bad then. Probably an issue with the either the cpu/pins or somewhere on the board itself since that psu works on another identical board

I am having a similar problem with a 1300 g2 PSU... It self tests fine, but will not power/boot 2 different Motherboards. I just get a "ping" noise from the PSU. Starting to think some sort of protective feature is off, as it will not power up anything except self test.