[SOLVED] PC turns off after i turn it on.

Dec 14, 2021
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So Im building my own GPU Mining Rig and I have hooked everything up. Now I turn it on and it immediately turns off. I unplugged the cord from the PSU that connects to the motherboard for the CPU and it starts up and stays on. Im not sure what the problem is can anyone please help. Thank you
 
So Im building my own GPU Mining Rig and I have hooked everything up. Now I turn it on and it immediately turns off. I unplugged the cord from the PSU that connects to the motherboard for the CPU and it starts up and stays on. Im not sure what the problem is can anyone please help. Thank you
As your specs .. your cpu is Coffeelake (9th gen) while Your motherboard supports Skylake and Kaby Lake CPUs (6th and 7th gen CPU)
I think if you did everything well.. just buy 6/7th gen CPU.. put in on motherboard... And your PC will boot...

If there is something wrong.. with connections.. i use my multimeter for mining Rigs to test any Short on 12v rail.. if there is any dead short between 12v rail and Ground while everything is connected...

To test.. take any empty PCIe power connector.. (if it has mustard cables) take a multimeter.. set it to continuity mode.. put red probe in yellow wire of PCIe Connector and Black probe in Black wire of PCIe Connector.. (while PC is off).. and at first meter will beep... And then stop beeping and voltage drop will increase.. if it beeps continuously with no change in voltage drop or Showing 000... Means you did something wrong with wiring (mostly this happens in big mining farm.. where people put 20 cards in one 5KW PSU (server PSU)... Using sketchy soldering iron and basic knowledge.. and if 12v rail is shorted or any rail is shorted to ground.. simply your PC will not even turn on.. or some components may get burned
 
Dec 14, 2021
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Full system specs includes brand and model of the PSU?

How did you connect everything exactly. Do you have some pictures?
PSU is a cooler master 650 w gold.
Mother board is TB250-BTC
CPU is intel i5 core 9500
GPU is a nvidia 3060 rtx LHR

So I think I found the issue. The motherboard I have is a TB250-btc mining mother board and the CPU I got is a LGA1151 Intel i5 core 9500. And according to this website https://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=865#cpusupport My mother board doesn;t support the CPU. So I will buy a new CPU that is on the list to see if that works.
 
Hi Lewism98. Good catch. Yes, the B250 is a Kabylake chipset, which supports the 6000 and 7000 series Intel CPUS on the LGA1151 socket. But your core i5-9500 is a Coffeelake refresh chipset CPU on the LGA1151 v3 socket. Even though both sockets are physically identical, they are not electronically compatible because Intel didn't want them to be unfortunately.
 
Dec 14, 2021
4
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10
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Hi Lewism98. Good catch. Yes, the B250 is a Kabylake chipset, which supports the 6000 and 7000 series Intel CPUS on the LGA1151 socket. But your core i5-9500 is a Coffeelake refresh chipset CPU on the LGA1151 v3 socket. Even though both sockets are physically identical, they are not electronically compatible because Intel didn't want them to be unfortunately.
Will my motherboard be still fine after I tried to turn it on?
 
So Im building my own GPU Mining Rig and I have hooked everything up. Now I turn it on and it immediately turns off. I unplugged the cord from the PSU that connects to the motherboard for the CPU and it starts up and stays on. Im not sure what the problem is can anyone please help. Thank you
As your specs .. your cpu is Coffeelake (9th gen) while Your motherboard supports Skylake and Kaby Lake CPUs (6th and 7th gen CPU)
I think if you did everything well.. just buy 6/7th gen CPU.. put in on motherboard... And your PC will boot...

If there is something wrong.. with connections.. i use my multimeter for mining Rigs to test any Short on 12v rail.. if there is any dead short between 12v rail and Ground while everything is connected...

To test.. take any empty PCIe power connector.. (if it has mustard cables) take a multimeter.. set it to continuity mode.. put red probe in yellow wire of PCIe Connector and Black probe in Black wire of PCIe Connector.. (while PC is off).. and at first meter will beep... And then stop beeping and voltage drop will increase.. if it beeps continuously with no change in voltage drop or Showing 000... Means you did something wrong with wiring (mostly this happens in big mining farm.. where people put 20 cards in one 5KW PSU (server PSU)... Using sketchy soldering iron and basic knowledge.. and if 12v rail is shorted or any rail is shorted to ground.. simply your PC will not even turn on.. or some components may get burned
 

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