Help with fixing my system

[Akhil005]

Hi Guys, I have been a longtime follower of LTT. Got enough information from thier video and forums to build my own PC last year. I have gotten into an issue with my PC, and unable to fix the same. Would really appreciate any help I can get on the below issue.

 

The problem started when while playing MW (2019) my graphics card fans would randomly ramp up and screen would go blank. I updated all my drivers and made sure windows was up to date. System seemed to be working fine for a bit, then it started having same issues again, and despite me deleting all graphics drivers and reinstalling them, my screen started going blank even when not playing a game. I know the system continued to work since it happened when I was watching a video, I could hear the sound but the screen had gone blank. I tried updating other bios but to no avail. Now my PC would not even post anything at start. The system starts up, the fans start, nothing shows up on the screen and the system itself shuts off and starts again and this goes on a loop until I manually power it off. Additionally I see 2 white lights where I connected the power cable to GPU. I read this indicates a power issue, i tried different cables but the issue persisted. Given I have a 750 Watt PSU I doubt it is lacking in power. Please let me know if anyone has a clue as to what could be causing the issue?

 

My System Details:

 

Motherboard: ASRock Z370 Killer SLI/ac LGA 1151 (300 Series) Intel Z370 HDMI SATA 6Gb/s USB 3.1 ATX Intel Motherboard

CPU: Intel Core i5-8600K Coffee Lake 6-Core 3.6 GHz (4.3 GHz Turbo) LGA 1151 (300 Series) 95W BX80684I58600K Desktop

CPU Cooler: Noctua NH-L9i 92mm SSO2 CPU Cooler

RAM: G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2400 (PC4 19200) Desktop Memory Model F4-2400C15D-16GVR

GPU: GIGABYTE GeForce RTX 2080 GAMING OC 8G Graphics Card, 3 x WINDFORCE Fans, 8GB 256-Bit GDDR6, GV-N2080GAMING OC-8GC Video

PSU: CORSAIR CX Series CX750 (New) CP-9020123-NA 750W ATX12V 80 PLUS BRONZE Certified Non-Modular Active PFC Power Supply

 

Given the lock down I'm unable to get any outside help, any advice is really appreciated.

[TylerDurden!]

7 minutes ago, Akhil005 said:

I read this indicates a power issue

yes, your card is saying, I am not getting power...have you tried disconnecting and reconnecting the pciex power cables?  Make sure the wires are fully seated in the plug.  If you have a multimeter you can check to see if the power cables are actually working.   You wouldn't happen to have a spare psu by chance

[fuzz0r]

Have you tried running it without the GPU? And using onboard GPU?

[LIGISTX]

6 minutes ago, fuzz0r said:

Have you tried running it without the GPU? And using onboard GPU?

This is a good suggestion. OP, try this. 

 

Also, if that doesn't work, you could try and reset your CMOS. You can google that for you specific motherboard, but usually there is a jumper to reset it. Unplug PC from power, short those jumpers (you can use the end of a screwdriver, or your house key) for a few seconds, then plug back in and try and start. That will effectually reset the BIOS to factory default (on your new BIOS version, it doesn't downgrade your BIOS or anything).

 

Try these things and report back

[Akhil005]

Thank you so much guys, you are the best!!

I had tried removing and attaching the cables but to no luck. I reset the CMOS by moving the jumpers and removing the CMOS battery for 30 seconds. The system is posting now. I'm installing the required drivers and will try the stress test and games to make sure its working as before. Will update after the tests. Thank you so much for the help and support. Love the LTT community.

[Akhil005]

Thanks a lot guys, ran the furmark stress test for over an hour, and ran GTA , Rise of the Tomb Raider and MW. My system is posting and no crashes. Thank you very much for all your help!!