ABIT IP35Pro Error Code 7F

Ok please tell me what is wrong here.. ive googled everywhere and there are diff things happening/experienced by ppl experiencing this issue..

I just sent my PC for services and as soon as i get it back this is what happens.. it makes me regret my decision... so basically on day 1 after doing clean install... everything works perfectly... then on day 2.. when i was in the middle of DOTA... my screen crashed/stutters and then goes blank...

I reset my system n it booted as normal but then out of sudden in 10 mins or so... It goes blank and the post code at the mobo shows 7F

i tried resetting CMOS but still it stucks at 7F, sometimes it goes back to FF but nothing showed up on the screen...

Please tell me what i can do and this is not a major damage..:( .. anyway im sending my PC back to the shop for them to check coz its still under warranty.. but i still want to know what is the problem n how to fix it

EDIT: Abit IP35 Pro User Manual (Page 81 of 88) << this is what 7F means, tho i still dont understand

Some links:
Abit IP35 says 7F then FF but no video output - please help!

https://hardforum.com/threads/ip35-p...error.1228108/

IP35 Pro hangs at 7F / CMOS checksum error

Abit ip-35 wont post, 7F - Page 2

AB9Pro Error Code 7F (POST) - CMOS - Motherboards