Question New GPU doesn't work

Jan 18, 2025
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I recently purchased a used Galax RTX 3070 from Facebook Marketplace group, however I experienced a problem.It worked properly for one day after installation. After shutting down and trying to restart, my computer failed to boot, with no lights or sound. However, unplugging the PCIe cable caused the machine to boot normally, but the GPU fans did not spin.The seller suggested that something caused a short to the gpu, and suggested it might be the psu, then I replaced my power supply.So I got a replacement because the seller promised a 30-day guarantee, and the same thing happened: the GPU worked on the first and second boot. However, following the second boot, the computer did not restart.And this time, I had to remove either the pcie cable or the GPU.Both times When I turned the machine back on, I heard a strange click coming from the power supply.This time, the seller stated that the short might be caused by the motherboard.But when I put my old Zotac 1050 Ti back in, it works well. Could someone please explain what's wrong with the GPU?Following this, the seller disputed the warranty and stated that even if he provided a third card, it would simply die.I also noticed that the ground from the power board where I plug in my computer is not working, although this has never caused a problem with my 1050 ti before.Specs:CPU: Ryzen 5 5600GMotherboard: MSI B450M PRO VDH-MAXRAM: Corsair Vengeance 8GBx2 DDR4 3200MHzPSU (Old): Corsair CV 450PSU (New): MSI MAG A850GL PCIE5GPU (Old): GTX 1050 TiGPU (New): GALAX RTX 3070
 
I recently purchased a used Galax RTX 3070 from Facebook Marketplace group, however I experienced a problem.It worked properly for one day after installation. After shutting down and trying to restart, my computer failed to boot, with no lights or sound. However, unplugging the PCIe cable caused the machine to boot normally, but the GPU fans did not spin.The seller suggested that something caused a short to the gpu, and suggested it might be the psu, then I replaced my power supply.So I got a replacement because the seller promised a 30-day guarantee, and the same thing happened: the GPU worked on the first and second boot. However, following the second boot, the computer did not restart.And this time, I had to remove either the pcie cable or the GPU.Both times When I turned the machine back on, I heard a strange click coming from the power supply.This time, the seller stated that the short might be caused by the motherboard.But when I put my old Zotac 1050 Ti back in, it works well. Could someone please explain what's wrong with the GPU?Following this, the seller disputed the warranty and stated that even if he provided a third card, it would simply die.I also noticed that the ground from the power board where I plug in my computer is not working, although this has never caused a problem with my 1050 ti before.Specs:CPU: Ryzen 5 5600GMotherboard: MSI B450M PRO VDH-MAXRAM: Corsair Vengeance 8GBx2 DDR4 3200MHzPSU (Old): Corsair CV 450PSU (New): MSI MAG A850GL PCIE5GPU (Old): GTX 1050 TiGPU (New): GALAX RTX 3070

what do you mean your ground is not working on the power board what exactly are you plugging the pc into

adapter ? or extention ?
 
what do you mean your ground is not working on the power board what exactly are you plugging the pc into

adapter ? or extention ?
i meant this hole in the socket, this protects the electronics in cause of high current or something. so the ground/earth wire is actually not properly connected in my sockets
i tested with a multimer and the voltage between positive and ground terminal is zero

image.png
 
i meant this hole in the socket, this protects the electronics in cause of high current or something. so the ground/earth wire is actually not properly connected in my sockets
i tested with a multimer and the voltage between positive and ground terminal is zero

image.png
that's earth. if a short or flash comes through, the protection circuit will cut the power.
no voltage will be there in normal conditions
 
CPU: Ryzen 5 5600GMotherboard: MSI B450M PRO VDH-MAXRAM: Corsair Vengeance 8GBx2 DDR4 3200MHzPSU (Old): Corsair CV 450PSU (New): MSI MAG A850GL PCIE5GPU (Old): GTX 1050 TiGPU (New): GALAX RTX 3070
first guess after reading - psu 450W?

CPU needs 65W
GPU needs TDP: 220 W ; Suggested PSU: 550 W

so basical i say CPU 100W - GPU 300

what else you have: Board, leds, USB ?

Men get a 600 or 750W

you run your PSU on limit all the time.