8 (6+2) connectors for dual 8 pin graphics cards

[cosmogenesis]

I have one power supply and my 3080 has two 8 pin power connectors. Does it matter if you supply the power from the same cable as the cable has 2 6+2 connectors or use two separate cables (same power supply for either method)

 

[Armageus]

Assuming a reputable PSU manufacturer then should be no issue using both connectors on the same branch, but for absolute piece of mind many people use two separate branches.

 

[mickyflinn]

What's your psu ?

 

[cosmogenesis]

Yet but it means more cables so if one works I’ll try it. The power supply is of a decent brand

 

[cosmogenesis]

What's your psu ?

CWT GPX 850W Modular Power Supply 80 Plus Gold

 

[Quartz]

I have one power supply and my 3080 has two 8 pin power connectors. Does it matter if you supply the power from the same cable as the cable has 2 6+2 connectors or use two separate cables (same power supply for either method)

Yes, it does matter. The 30 series GPUs are known for their power spikes - transients - so it's better if each 8 pin connector comes from a separate cable. Especially a PSU with sub-par components like yours.

 

[mickyflinn]

CWT GPX 850W Modular Power Supply 80 Plus Gold

You have enough to run 2 separate cables , the maun reason is transition spikes of the 3080 which can be as high as 500w which can trigger a shutdown.

 

[pastymuncher]

Yes, it does matter. The 30 series GPUs are known for their power spikes - transients - so it's better if each 8 pin connector comes from a separate cable. Especially a PSU with sub-par components like yours.

That's not his actual psu although CWT does make that one based on their GPX platform so internals are likely to be the same. However, seeing as his psu can be had for as little as £72 (very cheap for a supposed 850w unit) and only has a pathetic 12 month warranty (even Chieftech gives their version 5 years) I wouldn't have any faith in it and would have avoided it like the plague.

 

[cosmogenesis]

Yes, it does matter. The 30 series GPUs are known for their ddpower spikes - trddzzzansients - sozit's better if each 8 pin connector comes from a separate cable. Especially a PSU with sub-par components like youI rea

Thanks

 

[cosmogenesis]

Yer 72 quid was a bargain and I only paid 60 via another online service with free postage.

Thanks got the advice. Much appreciated

 

[cosmogenesis]

That's not his actual psu although CWT does make that one based on their GPX platform so internals are likely to be the same. However, seeing as his psu can be had for as little as £72 (very cheap for a supposed 850w unit) and only has a pathetic 12 month warranty (even Chieftech gives their version 5 years) I wouldn't have any faith in it and would have avoided it like the plague.

Very reassuring if it fails I’ll let you know. Which make is the best ?

 

[pastymuncher]

Many would say Seasonic but they are overhyped and have their share of poor psu's. Any of the decent Corsair units, Phanteks, MSI Mag A series, Seasonic Focus and higher, some Coolermaster units. Stick with gold rated or higher and look for ten year warranties which will be on most decent psu's these days.

CWT does actually make very good psu's for other companies such as Corsair but their own GPX platform was poor.

 

[tamzzy]

You pay for the length of the warranty though in the overall price
This has a 10 year warranty: https://www.tomshardware.com/reviews/deepcool-gamerstorm-dq-m-v2l-850w-power-supply-review
But wait, it's also a CWT GPX base!

For £72 (or in OP's case, £60) it's a decent enough PSU
However after shelling out for a 3080, would I have bought or recommended it, no lol...should've got a better PSU instead