Question PC shows no sign of life

Oct 27, 2020
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My PC died after changing the GPU. Have been troubleshooting for a few days and it definitely isn't the PSU or the motherboard. What could it be?
 
Oct 27, 2020
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Start with listing full pc specs of your pc. Include PSU model also.
Then describe your troubleshooting steps.
Specs:
Ryzen 5 2600
16 gigs of HyperX Fury DDR4 2666 RAM
Inno3D GTX 1660 Ti
Gigabyte B450 Gaming X motherboard
Reddragon modular 600W PSU

The PC died after I plugged a 8pin and a 6 pin cable into the new GPU. It booted just fine with just the 8 pin cable but asked for both cables. It would not show any sign of life. Completely dead. I figured my cheap PSU finally died so I borrowed a Corsair 750w bronze PSU. It did nothing so the PSU is fine. Next step was ordering a new mobo. I ordered a Gigabyte B450 Aorus Elite. After going through the horrible process that is rebuilding everything I again got no sign of life. Me and everybody else who tried fixing it are completely baffled. Everyone says the only thing that could cause this is a dead CPU but even with a dead CPU, it should boot, which it doesn't. I put the old parts back in it and am shipping it back to the shop that assembled it this Monday but that could take a few weeks.
 
That doesn't sound right.
GTX 1660 ti would not require 2 PCIE power connections. 1x 8pin is all it requires. It's 120W card after all.
Which exactly model Inno3D GTX 1660 Ti ?
None of these models have 2x PCIE power connectors:
INNO3D GEFORCE GTX 1660 TI TWIN X2 OC RGB​
INNO3D GEFORCE GTX 1660 TI TWIN X2​
INNO3D GEFORCE GTX 1660 TI COMPACT​
 
Oct 27, 2020
5
0
10
0
That doesn't sound right.
GTX 1660 ti would not require 2 PCIE power connections. 1x 8pin is all it requires. It's 120W card after all.
Which exactly model Inno3D GTX 1660 Ti ?
None of these models have 2x PCIE power connectors:
INNO3D GEFORCE GTX 1660 TI TWIN X2 OC RGB​
INNO3D GEFORCE GTX 1660 TI TWIN X2​
INNO3D GEFORCE GTX 1660 TI COMPACT​
I forgot to mention I was changing my 1660ti to a 2060 Super
 
Oct 27, 2020
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I didn't try assembling it out the case.

I tried the new mobo with both cards, nothing worked. I tried the old mobo with both cards, nothing worked. I tried the borrowed PSU with all combinations. Nothing worked.
 

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