Usiang multiple PSU in one PC?

CrashBandicoot

PG Xtremist @ 1 post per day
Dec 30, 2009
657
6
23
Englandistan
Using multiple PSU in one PC?

Opening a thread after many years. I need some advice from someone who has actually done it.
Thing is with release of new graphics cards older gets cheaper. I have bought GTX 285 for 20 Quid each and bought 4.
I now want to build a Quad SLI rig.
The estimated PSU will be 1200 watt,which is very expensive to buy . In the range of 150 Quid.
But i can buy two 650 watt PSU for 15 Quid each. So will spend only 30 Quid on PSU.
Online i have seen some specialized cards called Add2psu which basically switches both PSU on or off at the same time.
But there seems to be almost nobody who had actually done it and have real life experience of using multiple PSU instead of one for runing a power hungry rig.

Questins are.

Have you done it? If so,share your experiencs.

If its possible then why nobody does it?

Is it safe for hardware?

Will my quad SLI GTX 285 Beat latest top end cards?
 
Last edited:

max007

Well-known member
Jul 19, 2010
1,123
0
41
lahore
Opening a thread after many years. I need some advice from someone who has actually done it.
Thing is with release of new graphics cards older gets cheaper. I have bought GTX 285 for 20 Quid each and bought 4.
I now want to build a Quad SLI rig.
The estimated PSU will be 1200 watt,which is very expensive to buy . In the range of 150 Quid.
But i can buy two 650 watt PSU for 15 Quid each. So will spend only 30 Quid on PSU.
Online i have seen some specialized cards called Add2psu which basically switches both PSU on or off at the same time.
But there seems to be almost nobody who had actually done it and have real life experience of using multiple PSU instead of one for runing a power hungry rig.

Questins are.

Have you done it? If so,share your experiencs.

If its possible then why nobody does it?

Is it safe for hardware?

Will my quad SLI GTX 285 Beat latest top end cards?
lol gtx 285 sli cant even beat gtx 560 ti which is around 4 year old gpu :p. IMO better sell of your gtx 285 sli and get used gtx 660ti or amd hd 7950/R9 270x
 

fpga123

Active member
Sep 27, 2010
385
4
24
35
Islamabad
It is possible, I have done it but you have to have it in a certain configuration. It will work only if the cards have PCIe 6/8-pin inputs. If so then one PSU will power the rest of the system while the other will feed the PCIe connectors. Some PSUs have this function out of the box, some need two wires to be shot/connected in the 24-pin Motherboard connector to work.

You have to know the power configuration of the different inputs;
- The PCIe slot on the motherboard gives up to 150W of power - 600W
- The PCIe 6-pin power input gives 75W of power - 300W x 2

You also have to consider the other system components too so there is also around a 100 watts more. So 1300W is the actual target you should be aiming for. I would suggest 2x 700W/750W units as the 285 runs out of spec to fulfill its power needs and that also means that you'll have to get good quality PSUs too.
 
Last edited:
General chit-chat
Help Users
We have disabled traderscore and are working on a fix. There was a bug with the plugin | Click for Discord
  • No one is chatting at the moment.
  • faraany3k faraany3k:
    I dont think games have looked any better since 2019 onwards and they are performing worse and worse. Game developers have really dropped the ball.
    Link
  • Necrokiller Necrokiller:
    Consoles can't even catch a break in titles developed exclusively for them 😢
    Link
  • Necrokiller Necrokiller:
    "All of this lends the game distinctly last-gen look at times, which is compounded by image quality and frame-rate issues."
    Link
  • Necrokiller Necrokiller:
    Link
  • Chandoo Chandoo:
    no jokes.
    Link
  • Chandoo Chandoo:
    faraany3k said:
    So while Playing Control, I found a journal which said that a bathroom is missing in Islamabad Beurue of Control. With Alan Wake and Control seems to be connected worlds. Even our city is in the universe as well. No wonder those Trail 5 and Trail 6 are haunted.
    did you know you can see @NaNoW credited in the game too ? :p
    Link
  • faraany3k faraany3k:
    So while Playing Control, I found a journal which said that a bathroom is missing in Islamabad Beurue of Control. With Alan Wake and Control seems to be connected worlds. Even our city is in the universe as well. No wonder those Trail 5 and Trail 6 are haunted.
    Link
  • EternalBlizzard EternalBlizzard:
    faraany3k said:
    What is peoples obsession with Battle Royale genre. 6 minutes to find a match, 3 minutes to setup a match, 2 minutes to land, 10 minutes for scavanging maybe 2 3 gunfigts and its over. Multiplayer landscape is looking absolute dogshit.
    I tried playing Apex Legends once. Couldn't find a gun for 5 minutes straight. If I found a gun, I couldn't find the right ammo for it. Got killed fighting with my fists. Uninstalled it the next day.
    Link
  • faraany3k faraany3k:
    What is peoples obsession with Battle Royale genre. 6 minutes to find a match, 3 minutes to setup a match, 2 minutes to land, 10 minutes for scavanging maybe 2 3 gunfigts and its over. Multiplayer landscape is looking absolute dogshit.
    • Like
    • Haha
    Reactions: iampasha and EternalBlizzard
    Link
  • M muneebjahangir:
    skip the villain arc
    Link
  • EternalBlizzard EternalBlizzard:
    iampasha said:
    I usually stay away from animes. Vinland saga changed the way i look at my life, and my experiences within. I recommend every breathing human being to watch this animated masterpiece at least once fromstart to finish.
    After I watched it, I never felt like i watched a show. It was a friggin journey. I got way too attached to Thorfinn and seeing him grow up and find himself and get rid of all the negativity inside of him was just pure bliss.
    Link
  • iampasha iampasha:
    EternalBlizzard said:
    Vinland Saga > Berserk
    I usually stay away from animes. Vinland saga changed the way i look at my life, and my experiences within. I recommend every breathing human being to watch this animated masterpiece at least once fromstart to finish.
    • Like
    Reactions: EternalBlizzard
    Link
  • Necrokiller Necrokiller:
    Crapcom's RE Engine expose hogaya saaeen. This shit ain't worth experiencing on any platform. 🤷‍♂️
    Link
  • Chandoo Chandoo:
    When a $399 console provides the same experience as a 4090. Yikes indeed saeen :sneaky:
    Link
  • Necrokiller Necrokiller:
    that's a yikes saaaen
    Link
  • Necrokiller Necrokiller:
    " Both PS5 and Series X have an unlocked frame-rate here, with performance that generally lies between 30fps and 45fps. That makes for a stuttering and inconsistent output in general play, no matter what you are doing at any given time."
    • Haha
    Reactions: EternalBlizzard
    Link
  • Link
  • EternalBlizzard EternalBlizzard:
    Vinland Saga > Berserk
    • Like
    Reactions: iampasha
    Link
  • faraany3k faraany3k:
    I absolutely hate parry and Sekiro made me love it, i hate sci fi and Mass Effect made me love it. This is the definition of genre defining experiences.
    Link
  • Necrokiller Necrokiller:
    Forbidden West Complete Edition now available on your fav websites. And Nixxes showed Crapcom how it's done 👍
    Link
  • Necrokiller Necrokiller:
    RE Engine is just utter shit for anything other than corridor design remakes
    Link
  • Necrokiller Necrokiller:
    This is a console first developer. LMAO
    Link
  • Link
  • faraany3k faraany3k:
    With how great cod warzone has translated onto mobile. Mainstream Consoles have lost its value even further. Maybe console gaming was associated with TVs and how TV is not the primary source of media consumption anymore, consoles will lose its 200 million core audiences even further.
    Link
  • Necrokiller Necrokiller:
    Even VRR can't rescue it 🥲
    Link
    faraany3k faraany3k: I dont think games have looked any better since 2019 onwards and they are performing worse and...