Two GPUs on ASRock z170 K6 - PSU failure

[cleverlight.design]

Hi All, I'm very new to PC builds and I know my way around the build a bit but need help with an issue I'm having. I'm Animator/Designer and switched from Mac about a year ago for the expandability, power and price-point PCs offered. I bought a gaming PC from Micro Center and recently purchased a 1070 TI with the intention of running that with my current 1070 for 3D rendering in Octane. When I had my buddy help my install the 1070 ti along with a new PSU, Thermaltake 1250w, the PSU fried when we tried to boot. Returned that PSU, tried again and had the exact same issue. What am I doing wrong? haha. I'm about to move everything into a new Corsair 460x and wanted to figure out my issue so I don't blow another PSU lol.

 

My PC specs:

Motherboard: ASRock z170 gaming K6,

CPU: Intel i7-6700k

New PSU: EVGA 1000 G+

GPUs: Zoltac 1070 & Gigabyte 1070 TI

Memory: 4x8gb

[NTDaws]

Check if your CPU port is not mixed up with the GPU port.

[seon123]

You did use the cables that came with the PSU? The pinouts vary by model. 

[Crazycatman]

10 minutes ago, cleverlight.design said:

Hi All, I'm very new to PC builds and I know my way around the build a bit but need help with an issue I'm having. I'm Animator/Designer and switched from Mac about a year ago for the expandability, power and price-point PCs offered. I bought a gaming PC from Micro Center and recently purchased a 1070 TI with the intention of running that with my current 1070 for 3D rendering in Octane. When I had my buddy help my install the 1070 ti along with a new PSU, Thermaltake 1250w, the PSU fried when we tried to boot. Returned that PSU, tried again and had the exact same issue. What am I doing wrong? haha. I'm about to move everything into a new Corsair 460x and wanted to figure out my issue so I don't blow another PSU lol.

 

My PC specs:

Motherboard: ASRock z170 gaming K6,

CPU: Intel i7-6700k

New PSU: EVGA 1000 G+

GPUs: Zoltac 1070 & Gigabyte 1070 TI

Memory: 4x8gb

Because maybe the PSU does not have 80+ efficiency? or it's the GPU's. Try just CPU boot up, download Userbenchmark, Then, test both video cards "ONE AT A TIME!" If that all works... then.. uh.. make sure to put the 1070Ti in the top slot as that is the "more" powerful GPU. Make sure to reset BIOS before you do all this. Also, why are you using 4x 8gb on a Dual Channel motherboard? Does that affect performance? I know more is better for you, or if you went with another 2 sticks after the fact, I fully understand and don't hate. Also why do you want to use the 1070 still? If you sell it I might want it only if it is not the short model lol.

(edit) make sure to use the CPU to CPU port. and GPU to GPU. as that guy said.

Edited May 11, 2018 by Crazycatman
Info

[STRMfrmXMN]

8 minutes ago, Crazycatman said:

Because maybe the PSU does not have 80+ efficiency? or it's the GPU's. Try just CPU boot up, download Userbenchmark, Then, test both video cards "ONE AT A TIME!" If that all works... then.. uh.. make sure to put the 1070Ti in the top slot as that is the "more" powerful GPU. Make sure to reset BIOS before you do all this. Also, why are you using 4x 8gb on a Dual Channel motherboard? Does that affect performance? I know more is better for you, or if you went with another 2 sticks after the fact, I fully understand and don't hate. Also why do you want to use the 1070 still? If you sell it I might want it only if it is not the short model lol.

(edit) make sure to use the CPU to CPU port. and GPU to GPU. as that guy said.

I have a lot of questions here.... Not to sound condescending but a lot of this is misinformation. Userbenchmark doesn't allow you to test one GPU and not another unless you're in SLI, in which case you have to manually disable SLI. 80 PLUS efficiency has nothing to do with OP's problem either. 

 

18 minutes ago, cleverlight.design said:

Hi All, I'm very new to PC builds and I know my way around the build a bit but need help with an issue I'm having. I'm Animator/Designer and switched from Mac about a year ago for the expandability, power and price-point PCs offered. I bought a gaming PC from Micro Center and recently purchased a 1070 TI with the intention of running that with my current 1070 for 3D rendering in Octane. When I had my buddy help my install the 1070 ti along with a new PSU, Thermaltake 1250w, the PSU fried when we tried to boot. Returned that PSU, tried again and had the exact same issue. What am I doing wrong? haha. I'm about to move everything into a new Corsair 460x and wanted to figure out my issue so I don't blow another PSU lol.

 

My PC specs:

Motherboard: ASRock z170 gaming K6,

CPU: Intel i7-6700k

New PSU: EVGA 1000 G+

GPUs: Zoltac 1070 & Gigabyte 1070 TI

Memory: 4x8gb

My best guess is that you used the same cables from your old PSU when you installed the new one. That's typically a quick death for the new unit. You need to use the cables that the PSU came with. Since the pinouts are different, so are voltages, placements of ground wires, and by mixing those up, you end up killing some component in your system.

[cleverlight.design]

14 minutes ago, STRMfrmXMN said:

My best guess is that you used the same cables from your old PSU when you installed the new one. That's typically a quick death for the new unit. You need to use the cables that the PSU came with. Since the pinouts are different, so are voltages, placements of ground wires, and by mixing those up, you end up killing some component in your system.

That definitely could have been the case because I'm very new to this. I have a new PSU, EVGA 1000w G+. I'm going to take extra care to make sure I use the included cables and test with one GPU at a time. 

 

I just wasn't sure if there was an issue with the motherboard as well. 

28 minutes ago, Crazycatman said:

(edit) make sure to use the CPU to CPU port. and GPU to GPU. as that guy said.

One thing I did make sure was that I had used the correct ports. Will double down on the next time to make 110% sure.