Question Am I doing something wrong with my new PSU?

[WillowTheWizard]

Hello everyone, I am currently messing around with a build project of mine and I am trying to use Pcie risers. My old PSU didn't have enough Pcie 6+2 power cables so I bought another PSU from eBay. It's a 2000w 17gpu power leads, with molex and SATA power connectors and 1 motherboard power cable.

Here's the thing, my old PSU powers the build fine. When I try to use the eBay PSU; 1) it won't fully boot up. 2) The PSU clicks and the PSU fans come on and then go off, and then on and clicks off again.

The eBay PSU isn't modular and it has so many wires everywhere yet my old PSU is modular and only using what's needed. The eBay PSU couldn't power up my workstation due to not enough motherboard power connectors and would fire the connector out when powered on. That was Pcie 6+2 in a CPU socket on the motherboard. My mistake for sure.

My question is; Do you reckon that it's a faulty eBay PSU or am I connecting up 2 risers incorrectly to 2 x 1080ti's which don't get recognised by the monitor because the eBay PSU clicks on and off with the PSU fans . I reconnected the old PSU and the computer booted up fine but without monitor and ran all Xmas even after blind starting windows with enter button and password. I fixed that after unplugging all leads from the TV and power sockets. It was a hardware change and had to re-register windows.

Is it my PSU from eBay or me not knowing how to use Pcie risers correctly?

 

[rgd1101]

what is this brand and model of the ebay psu?
return the ebay psu.

 

[WillowTheWizard]

what is this brand and model of the ebay psu?
return the ebay psu.

Hi, it's a Julongfengbao 80+ Platinum rated for 2000W at 180-240V.

 

[WillowTheWizard]

Hi, it's a Julongfengbao 80+ Platinum rated for 2000W at 180-240V.

Model number is: LX2000T

 

[WillowTheWizard]

Hello everyone, I was wondering if anyone could tell me where I am going wrong with connecting up 2 gpus to one motherboard. I am connecting 1 via a pcie riser cable and the other via a pcie 2.0 X4 to usb cable riser. The usb riser is powered to a molex and the one connected via a riser cable isn't powered. Both the gpus are powered by pcie cables. I am also not sure if my PSU is working properly so I'm just wanting to confirm that I have connected them up properly and haven't forgotten anything or am clearly doing something wrong. Thanks in advance. 👍

 

[COLGeek]

Why are you doing this?

What are the complete specs for this system (make/model of ALL components)?

 

[WillowTheWizard]

Motherboard: Intel DQ77CP MicroATX LGA 1155 DDR3 Support Q77 Chipset.
Processor: Intel Core i7-3770 (3.4Ghz) LGA1155
Memory: 8 GB PC12800 DDR3 1600MHz 240 Pin Memory
Gpu: 2 x Colorful I game 1080Ti 11GB

I'm doing this because I'm wanting to experiment with usb pcie risers out of curiosity and also to do a bit of mining for fun and curiosity. I have a workstation running 3 x 1080Ti's SLI linked for graphic arts which connect directly into Pcie 4.0 x 16 slots and connect via SLI leads but I don't want to use my workstation for mining.

 

[WillowTheWizard]

Motherboard: Intel DQ77CP MicroATX LGA 1155 DDR3 Support Q77 Chipset.
Processor: Intel Core i7-3770 (3.4Ghz) LGA1155
Memory: 8 GB PC12800 DDR3 1600MHz 240 Pin Memory
Gpu: 2 x Colorful I game 1080Ti 11GB

I'm doing this because I'm wanting to experiment with usb pcie risers out of curiosity and also to do a bit of mining for fun and curiosity. I have a workstation running 3 x 1080Ti's SLI linked for graphic arts which connect directly into Pcie 4.0 x 16 slots and connect via SLI leads but I don't want to use my workstation for mining.

PSU: Julongfengbao 80+ Platinum rated for 2000W at 180-240V. Model number: LX2000T

 

[--SID--]

That's a PSU is horrible. Bad quality and fake 80+ rating.

 

[WillowTheWizard]

That's a PSU is horrible. Bad quality and fake 80+ rating.

I know. I didn't want to spend £300+ on a new 1200w PSU from ASUS just to experiment with and I also didn't want to take my Workstation apart just to borrow it's PSU. What I should have done is borrow the workstation PSU and spend the money on a deposit for a new PSU.

 

[COLGeek]

Have you powered this config up and gotten the OS to see both GPUs?

 

[WillowTheWizard]

No, I never got that far as I thought it might be because I may be wiring them up wrong which was causing the PC not to fire up properly and the PSU to click on and off. So I switched everything off so I didn't fry my GPUs.

 

[COLGeek]

No, I never got that far as I thought it might be because I may be wiring them up wrong which was causing the PC not to fire up properly and the PSU to click on and off. So I switched everything off so I didn't fry my GPUs.

Try with one, then add the second one. Seems the setup you described earlier was okay.

However, it also seems you only need one riser as one GPU can be installed directly into the motherboard.

 

[WillowTheWizard]

Try with one, then add the second one. Seems the setup you described earlier was okay.

However, it also seems you only need one riser as one GPU can be installed directly into the motherboard.

I'm going to try one of those 4 x usb connectors to 1 pcie 2.0 x 4 slot adaptor just so I can get to grips with it all. If the connection sounds like it was fine then my problem must be with my PSU. I'll hook it all up again sometime after new year and see if it was the PSU, or me..!

 

[SkyNetRising]

I'm going to try one of those 4 x usb connectors to 1 pcie 2.0 x 4 slot adaptor

Can you show a photo, how you have connected everything?
(upload to imgur.com and post link)

 

[WillowTheWizard]

It's all taken apart atm but sometime over new Year I will assemble it with the PSU from my workstation to see if I can get it up and running with that. I'm kicking myself for being so stupid with buying that 8 GPU mining PSU. If it worked then all would be fine..

 

[--SID--]

The PSU is hot garbage. Very low quality and fake 80+ rating.