PC won’t turn on

[yosila]

Hello, I bought my PC a few months ago and it’s been great so far, no problems, up until today. My PC will not turn on when I press the power button. The only lights I can see on the PC are at the back, where there is the usual orange light and a flickering green light around the Ethernet port. I’ve made sure the power cable is fully connected to the PC, and I’ve tried plugging the power cable into different sockets. Any help would be greatly appreciated

Specs:

Case	CORSAIR 4000D AIRFLOW TEMPERED GLASS GAMING CASE
Processor (CPU)	Intel® Core™ i7 12-Core Processor i7-12700KF (3.6GHz) 25MB Cache
Motherboard	ASUS® PRIME B760-PLUS D4 (LGA1700, PCIe5.0, USB 3.2)
Memory (RAM)	16GB Corsair VENGEANCE DDR4 3200MHz (2 x 8GB)
Graphics Card	12GB NVIDIA GEFORCE RTX 4070 - HDMI, DP, LHR
Graphics Card Support Bracket	NONE (BRACKET INCLUDED AS STANDARD ON 4070 Ti AND ABOVE)
1st M.2 SSD Drive	1TB SOLIDIGM P41+ GEN 4 M.2 NVMe PCIe SSD (up to 4125MB/sR, 2950MB/sW)
DVD/BLU-RAY Drive	NOT REQUIRED
Power Supply	CORSAIR 750W RMx SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
Power Cable	1 x 1.5 Metre UK Power Cable (Kettle Lead)
Processor Cooling	DeepCool AG620 ARGB High-Performance Dual Tower CPU Cooler
Thermal Paste	STANDARD THERMAL PASTE FOR SUFFICIENT COOLING
Sound Card	ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Network Card	ONBOARD LAN PORT
Wireless Network Card	WIRELESS INTEL® Wi-Fi 6E AX210 2,400Mbps/5GHz, 300Mbps/2.4GHz PCI-E CARD + BT 5.0
USB/Thunderbolt Options	MIN. 2 x USB 3.0 & 2 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Operating System	Windows 11 Home 64 Bit - inc. Single Licence [KUK-00003]
Operating System Language	United Kingdom - English Language
Windows Recovery Media	Windows 10/11 Multi-Language Recovery Image - Unlimited Downloads from Online Account
Office Software	FREE 30 Day Trial of Microsoft 365® (Operating System Required)
Anti-Virus	Norton 360 inc. Game Optimizer - Free 90 Day License
Browser	Google Chrome™
Keyboard & Mouse	Razer® BlackWidow V3 Tenkeyless (Green Switch)
Warranty	3 Year Standard Warranty (1 Month Collect & Return, 1 Year Parts, 3 Year Labour)

 

[Bhuna50]

Have you opened your machine and checked for any loose wires coming from the PSU and leading to the motherboard / GPU etc.

It doesnt sound like it is the PSU as you are getting some lights come on but cables may have come loose.

Do you get any beeps at all or any movement in the fans?

 

[SpyderTracks]

Also check the CPU motherboard cable hasn't come loose, it's usually and 8pin, sometimes plus a 6 pin, usually located top left of the motherboard.

 

[ubuysa]

What happened immediately prior? Was there a power cut at your house? Have you opened it up at all? Did you move the PC? Have you installed any updates?