[SOLVED] PC doesn't POST after adding a GPU ?

Feb 26, 2021
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Hi !

So I bought basically a new pc put keeping parts from the previous one (power supply, hard drives, gpu) and I have a really weird issue with my new setup.

the computer boots just fine and I can access the bios when the gpu is not there. But when I add it, nothing posts... all black no response ! It worked just fine this afternoon on the old setup so it's not a bad gpu and I made sure that the 6-pins power plug was correctly plugged (the fan spins). I actually tried a lot of times... I tried using the other pci-e slot, plugging my display on the motherboard or the gpu, removing a stick of ram, but nothing did the trick.

I also tried messing around with some bios parameters without any success. I've run out of ideas and Google does not seem to be my friend today 🙁

here are my specs:

new:
i5-10600k
msi b460 tomahawk
g.skill f4-3200c16d-16 GVK (2x8Go)

old:
Zotac gtx 1060 mini 3 GB
1 120Go SSD, 1 2To HD and 1 250Go HD
good old 500W power supply
 
Rosewill DR-8500btx
It's a bad psu for modern hardware. Pretty low quality and has double forward with groupregulation. For modern standards it isn't a 500w psu but 370w because that what's available at 12V. I recommend to replace that unit.

And why a 10600K on B460? A K cpu is for overclocking and with B460 you can't OC.
3200 MT/s ram is useless on B460. On that board with a i5, ram never runs faster than 2666!
 
Oof. There's no guarantee the PSU is causing this, but it's the logical next step. This PSU should be replaced under any circumstance; a decade-old Rosewill, before they started shelling out money to proper manufacturers, designed to run the very different PCs from two decades ago is not something that should be inside a modern PC ever. In any case, getting a junk PSU out of the equation is a necessary step to diagnosing the problem.
 
The 10600k was on sale making it the same price as the not K. Plus, maybe my fault because I didn't specify, but the msi MAG b460 tomahawk can definitely OC.


But your comments on the power supply make sense. I will look further into this.

Thx !
 
Oof. There's no guarantee the PSU is causing this, but it's the logical next step. This PSU should be replaced under any circumstance; a decade-old Rosewill, before they started shelling out money to proper manufacturers, designed to run the very different PCs from two decades ago is not something that should be inside a modern PC ever. In any case, getting a junk PSU out of the equation is a necessary step to diagnosing the problem.
It's a bad psu for modern hardware. Pretty low quality and has double forward with groupregulation. For modern standards it isn't a 500w psu but 370w because that what's available at 12V. I recommend to replace that unit.

And why a 10600K on B460? A K cpu is for overclocking and with B460 you can't OC.
3200 MT/s ram is useless on B460. On that board with a i5, ram never runs faster than 2666!

Changed my psu to a thermaltake smart 500W. It didn't change a thing.

I also updated the bios, updated windows just in case. Nothing.