Can optiplex 3080 3090 psu be upgraded to 7080 7090 psu

looks like 260w psu DP/N 2KG1D for 7080 has two 4 pin+ 6 pin, whereas 260w psu for 3080 DP/N H7X3F has one 4 pin+ 6 pin.

it is possible that both 4 pin connector of 260w psu of 7080 need to be connected to motherboard cpu power sockets in order to boot, otherwise one gets a 2 + 2 blink amber error of “bad psu cabling”.  If so, that would prevent 3080 user from upgrading to higher power 7080 Dell psu.  

per Dell Chris M

Optiplex 7060 MT =
52CKC 260W Acbel
GDCXM 260W Chicony
4THK0 260W Delta
3YNRJ 260W LiteOn
TP18W 260W LiteOn

Optiplex 7070MT =

3YNRJ 260W LiteOn Bronze
TP18W 260W Liteon Platinum

Optiplex 7080 MT =
2KG1D 260W Acbel
85CV5 260W Acbel
45CTY 260W Delta
D37PC 260W Liteon
J17YJ 260W Liteon

It is interesting to note that Optiplex XE3 (Intel 300 series chipset, 8th gen cpu) motherboard has only one 4 pin + 6 pin, based on service manual photo and user uploaded real photo.

so XE3 motherboard appears similar in design to 7070/7060/7050 etc with only one 4 pin + 6 pin.  Note 7060/7070 both have Intel 300 series chipset too.

this brings up hope that the 360w psu of XE3 can be compatible with 7070/60/50.

per Dell Chris M

Optiplex XE3 Tower BTX =
J82T5 300W Chicony Gold
VM8KR 360W Chicony Gold
8HKG7 360W Liteon Gold

Optiplex XE3 SFF BTX =
J82T5 300W Chicony Gold

VM8KR8HKG7

Hi I have a dell 3080 mt 260 watt power supply it has 2x 4 pin and 1 x 6 but also would like to know if 500 watt would work as a guess I think it would work for mine when I turn my pc of there is still power going to the 4pin connector that’s not used if this is any help Cheers you can see the other one hanging up 🧐

Hi thanks for the advice I have 24 pin to 8 pin for my old dell 9020 mt I think 3080 Is 6 and do you know about cooler fans if safe for after market like noctua nh u9s fan to connected to cpu header ? Heard people say the wiring could be different but happy to buy the top of the range dell tower cooler as be nice to drop the temps abit  

you can use the Amazon 24 to 6 pin adapter if you decide to upgrade to non-Dell SFX psu. 

what is the DP/N of your 260w stock psu?  thank you for sharing that the psu works when only one 4 pin is plugged in.  If you ever get the Dell 500w psu to work in 3080 please report back.

Thanks man I checked out 6pin not planing to upgrade at the momment ram first I think rest is about done and I will add a picture of the UP/n D260EOO3P I think that’s what you want and sure I will let you know if I ever do the 500 watt dell psu  

Thank you.  I am frankly surprised the Dell does this to confuse user reverse engineering their scheme yet again.  we thought we had figured it out.  now a psu w two 4 pin and one 6 pin works on 3080 motherboard that has only one 4 pin + one 6 pin.  this means the 260w psu can work with mobo when one of the two 4 pins are not connected to anything.  the mystery thickens.  is it the 3080 mobo bios that allows this?

I forgot got to add the 3080 sff and 3080 mt power supply could be slightly different I have not checked but some models that look the same should be compatible to swap power supply around I’d amagin any way il keep you updated if I ever changed the power supply cheers 

Well I do not think so as I got this from an office they upgraded all there pc and I put this bios on when I got it 2 bios update, I believe this I genuinely how the office bought this pc as I got 2 of them and they were both identical  

I have 3080 mt 260w psu also it has two 4 pin and 6 pin...im using gtx 1650 on it with i5 10500..im planning to upgrade on future to rtx 3060 or 3050 hope will find 500w psu working with my pc

Have you custom added that second fan mine doesn't have that...

Sorry do not check here much yes I added a fan have removed it again but if I add a new cooler il add back the rear fan to sata maybe with some kind of controller so it’s not full speed work out what’s best I don’t really game so not sure if I need a cooler ect I plan on getting the dell 7000 mt cause rear fan and 4x times ram sockets as I feel it’s faster than 2 duel to quad if that’s a thing in ram might not be but big dell fan enjoy 

@Dellacruse​ Hi i finnaly upgraded the cooler it fits sparing 1mm lol or 2 and added front fan to sata splitter with rear fan i have not found a psu yet happy with this as i dont really game playing gtav ust to be in 80s now 60 max 70 temps acceptable now

:O) dell if you have any old stock feel free to send me a nice optiplex top of the range hahah enjoy all 

 i could of got nicer fans ect made it cleaner but this will do great we machine ​