Question 6+2 Pin for new GPU, PC Parts Picker confusion

Toggle sidebar Toggle sidebar
A

aleksfox

Distinguished
Jun 18, 2015
50
0
18,530
So i apologize in advance if my question is meaningless and it's purely my confusion.

I have a TX850M Power Supply; and i am looking to install a RTX 4070 TI Trinity into my system. To be on the safe side i use PC Parts Picker to check for incompatibilities and it gave me the note

"The video card PCIe 16-pin power connector adapter is being supplied by three 6+2-pin power connectors. Please ensure that the three 6+2-pin power connectors are not daisy-chained and do not share the same power cable."

My confusion stems from the Power Supply having four 6 pin outlets labelled "Peripheral & Sata" and two 8 pin outlets labelled "6+2 PCI-E & 4+4 CPU"

Am i ment to use the four 6 pin outlets; but 6 from one, two from another? or only do that for two of them and use one of the "6+2 PCI-E" outlets?

Any help would be greatly appreciated, even if the end result is me having to buy a more modular PSU
 
Sort by date Sort by votes
Peripheral and SATA are reserved for SATA and Molex (4-pin in a line) connectors. 12V and 5V.

PCIe and EPS are 12V only. 6+2 PCIe is equivalent to an 8-pin. That GPU requires 3 8-pin to plug into the adapter.

The recommendation is to use 3 independent cables. However, your power supply only offers two cables that each carry 2 6+2 connectors. Technically enough, but that means that 2/3 of the power is on one cable, and 1/3 on the other.

One solution would be to get a 4 8-pin to 12VHPWR 16-pin adapter and plug ALL of your PCIe connectors into it for a balanced load.

How old is it? If it is from 2011, you should replace it regardless of what you do next.
 
Upvote 0 Downvote
Considering how "well are the new gpu cards (meaning mainly nvidia 40xx) are permorming" I'd sadly advise switching to a new psu. I have recently switched to new Seasonic PSU, not voluntary but because me old one has failed. One particular thing has pciked my and friens interest was fancy new 16 pin connector.
 
Upvote 0 Downvote
Eximo said:
Peripheral and SATA are reserved for SATA and Molex (4-pin in a line) connectors. 12V and 5V.

PCIe and EPS are 12V only. 6+2 PCIe is equivalent to an 8-pin. That GPU requires 3 8-pin to plug into the adapter.

The recommendation is to use 3 independent cables. However, your power supply only offers two cables that each carry 2 6+2 connectors. Technically enough, but that means that 2/3 of the power is on one cable, and 1/3 on the other.

One solution would be to get a 4 8-pin to 12VHPWR 16-pin adapter and plug ALL of your PCIe connectors into it for a balanced load.

How old is it? If it is from 2011, you should replace it regardless of what you do next.
Click to expand...
I bought the PSU in 2021, i figured 850W would be more then enough for a while, failed to realize how the pin standards would change for newer graphics cards

The manufacturer of the 4070 has informed me that they're sending an addon in the box "16 pin to 2x8 cable adapter" would that be similar to your suggestion, or is that not enough given the limitations of the psu?
 
Upvote 0 Downvote
Well, that is actually less power delivered to the GPU then before. Theoretically enough 2x150W + 75W from the slot. However, that doesn't account for overclocking or sudden power demand that 40 series cards are known for. Why the ATX 3.0 spec was developed.

Hmm, well as long as the manufacture date is fairly recent. Didn't think they were still selling the TX line.
 
Upvote 0 Downvote
Well i am Norwegian, so whatever hardware gets oudated in the US stays sold here for quite a while; and the price is (converted) 1300 dollars which is one of the cheapest i've seen in a year.

So what you are saying is basically; in theory their solution + my PSU should work - but it's decidedly more stable to buy a new PSU which is fully modular and have the extra pins? is 850W still what i should go for in that case?
 
Upvote 0 Downvote
Yes, 850W is suitable for a 4070Ti. I run the 350W 3080Ti on a 850W PSU.

I'm just worried that you've purchased a PSU that sat on a shelf for the better part of a decade. Apparently you can check.

The first 4 numbers of the S/N are the date code.
The first 2 numbers are the year, and the next 2 numbers are week number.

If it is old, I would consider returning it. Otherwise the warranty should be good from Corsair as long as you keep the proof of purchase date.
 
Upvote 0 Downvote
Huh, alright that is kinda concerning; alright thanks for the heads up, when i get home later tonight i'll pull it out and check those numbers, i'll report the findings back - but if it wasn't newish when i did buy it, i suppose i should get a new one anyway; and solve both problems at once
 
Upvote 0 Downvote
--SID-- said:
No need to. It's a decent unit. Tier A in https://cultists.network/140/psu-tier-list/ . Even if it's manufactured in 2017 and in use since 2020, it's a rteliable unit for at least the next 7 years.
Click to expand...
Whilst nice, the cable confusion is still greatly concerning to me. My PSU only has two 6+2 PCI-E outlets. If the Manufacturers 8x2 Adapter works then problem solved (i think) but otherwise the idea that i might kill my GPU or PSU is very cocerning for someone who is confused by all of this
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom