PC won’t turn on…. Help

Vango0711

New member
I was cleaning my sons pc and once I plugged it in it won’t turn back on. When the switch is on, on the back a green light flashes on then goes off and nothing happens no beeps, no leds lighting up. Can someone help me before my teenage son murders me in my sleep!! Specs below

howing Order Reference 1795442
CasePCS 6003B BLACK CASE
Processor (CPU)AMD Ryzen 5 2600X Six Core CPU (3.6GHz-4.25GHz/19MB CACHE/AM4)
MotherboardGigabyte B450 AORUS ELITE: DDR4, USB 3.1 - ARGB Ready
Memory (RAM)16GB Corsair VENGEANCE DDR4 2400MHz (1 x 16GB)
Graphics Card6GB NVIDIA GEFORCE GTX 1660 Ti - HDMI, DP - GeForce GTX VR Ready!
1st Storage Drive1TB SEAGATE BARRACUDA SATA-III 3.5" HDD, 6GB/s, 7200RPM, 64MB CACHE
Power SupplyCORSAIR 350W VS SERIES™ VS-350 POWER SUPPLY
Power Cable1 x 1 Metre UK Power Cable (Kettle Lead)
Processor CoolingPCS FrostFlow 100 V2 Series High Performance CPU Cooler (AMD)
Thermal PasteARCTIC MX-4 EXTREME THERMAL CONDUCTIVITY COMPOUND
Extra Case Fans1x 120mm Black Case Fan (configured to extract from rear/roof)
Sound CardONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Wireless Network CardWIRELESS INTEL® Wi-Fi 6 AX200 2,400Mbps/5GHz, 300Mbps/2.4GHz PCI-E CARD + BT 5.0
USB/Thunderbolt OptionsMIN. 2 x USB 3.0 & 2 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Operating SystemWindows 10 Home 64 Bit - inc. Single Licence
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davhun

Enthusiast
I was cleaning my sons pc and once I plugged it in it won’t turn back on. When the switch is on, on the back a green light flashes on then goes off and nothing happens no beeps, no leds lighting up. Can someone help me before my teenage son murders me in my sleep!! Specs below

howing Order Reference 1795442
CasePCS 6003B BLACK CASE
Processor (CPU)AMD Ryzen 5 2600X Six Core CPU (3.6GHz-4.25GHz/19MB CACHE/AM4)
MotherboardGigabyte B450 AORUS ELITE: DDR4, USB 3.1 - ARGB Ready
Memory (RAM)16GB Corsair VENGEANCE DDR4 2400MHz (1 x 16GB)
Graphics Card6GB NVIDIA GEFORCE GTX 1660 Ti - HDMI, DP - GeForce GTX VR Ready!
1st Storage Drive1TB SEAGATE BARRACUDA SATA-III 3.5" HDD, 6GB/s, 7200RPM, 64MB CACHE
Power SupplyCORSAIR 350W VS SERIES™ VS-350 POWER SUPPLY
Power Cable1 x 1 Metre UK Power Cable (Kettle Lead)
Processor CoolingPCS FrostFlow 100 V2 Series High Performance CPU Cooler (AMD)
Thermal PasteARCTIC MX-4 EXTREME THERMAL CONDUCTIVITY COMPOUND
Extra Case Fans1x 120mm Black Case Fan (configured to extract from rear/roof)
Sound CardONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Wireless Network CardWIRELESS INTEL® Wi-Fi 6 AX200 2,400Mbps/5GHz, 300Mbps/2.4GHz PCI-E CARD + BT 5.0
USB/Thunderbolt OptionsMIN. 2 x USB 3.0 & 2 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Operating SystemWindows 10 Home 64 Bit - inc. Single Licence
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and delete the Windows licence.

Where do we send the flowers?
 

B4zookaw

VALUED CONTRIBUTOR
Where do you see this green light? And when you say switch, do you mean the PSU switch at back, or the case power button?
 

sck451

MOST VALUED CONTRIBUTOR
Nah, cleaned the dust out and replaced thermal paste
So you removed the cooler? My first guess would be that the CPU cooler fan isn't connected, or is connected to the wrong header. (Or, possible but unlikely, that you cleaned it out with compressed air, over sped the fan and burnt out the header. But, while possible, that's very unlikely.)

There could easily be other causes, but that's my first guess and the first thing I'd try/check.
 

B4zookaw

VALUED CONTRIBUTOR
Green light on motherboard at the bottom, and the switch on the back of psu
Which light in particular:
1691964422085.png

I'm going to hazard something with CPU or RAM if you were removing the cooler. Might help to see some photos of the current mounting, etc
 
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