Jump to content

Minimum PSU for 2x 780 ?

TheRoss0411
By TheRoss0411
in Power Supplies
 Share
Posted

I just got my 780 but i am wondering the minimum PSU wattage i would need to run 2 780s

I might get  another 780 for for Christmas this year

I currently have a 650W

Thanks

CPU - Intel 4670k  Motherboard - Gigabyte GA-Z87X-D3H  RAM - Kingston HyperX 8GB  GPU - EVGA 780  Case - Fractal Design Define R4    Storage - 2TB WD Black, Samsung 840 Evo 128GB     PSU - Corsair RM650  Display -  Benq XL2430T and Acer S235HL  Cooling - CM Hyper 212 Evo  Keyboard - Corsair K95  Mouse - Razer Deathadder  Sound - Sennheiser HD 558                                 Mic - Blue Snowball  Phone- OnePlus One  Tablet - Nvidia Shield

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/
Share on other sites
Link to post
Share on other sites
Posted

650w should do if you have a baller unit. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903858
Share on other sites
Link to post
Share on other sites
Posted

I wouldn't go under 750. Of course that depends on the rest of your system.

Case: Corsair 4000D Airflow; Motherboard: MSI ZZ490 Gaming Edge; CPU: i7 10700K @ 5.1GHz; Cooler: Noctua NHD15S Chromax; RAM: Corsair LPX DDR4 32GB 3200MHz; Graphics Card: Asus RTX 3080 TUF; Power: EVGA SuperNova 750G2; Storage: 2 x Seagate Barracuda 1TB; Crucial M500 240GB & MX100 512GB; Keyboard: Logitech G710+; Mouse: Logitech G502; Headphones / Amp: HiFiMan Sundara / Mayflower Objective 2; Monitor: Asus VG27AQ

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903859
Share on other sites
Link to post
Share on other sites
Posted
  • Author

which 650w..? bronze, gold...???

Corsair RM650, gold

CPU - Intel 4670k  Motherboard - Gigabyte GA-Z87X-D3H  RAM - Kingston HyperX 8GB  GPU - EVGA 780  Case - Fractal Design Define R4    Storage - 2TB WD Black, Samsung 840 Evo 128GB     PSU - Corsair RM650  Display -  Benq XL2430T and Acer S235HL  Cooling - CM Hyper 212 Evo  Keyboard - Corsair K95  Mouse - Razer Deathadder  Sound - Sennheiser HD 558                                 Mic - Blue Snowball  Phone- OnePlus One  Tablet - Nvidia Shield

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903871
Share on other sites
Link to post
Share on other sites
Posted
  • Author

650w should do if you have a baller unit. 

Baller unit ?

CPU - Intel 4670k  Motherboard - Gigabyte GA-Z87X-D3H  RAM - Kingston HyperX 8GB  GPU - EVGA 780  Case - Fractal Design Define R4    Storage - 2TB WD Black, Samsung 840 Evo 128GB     PSU - Corsair RM650  Display -  Benq XL2430T and Acer S235HL  Cooling - CM Hyper 212 Evo  Keyboard - Corsair K95  Mouse - Razer Deathadder  Sound - Sennheiser HD 558                                 Mic - Blue Snowball  Phone- OnePlus One  Tablet - Nvidia Shield

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903873
Share on other sites
Link to post
Share on other sites
Posted

Corsair RM650, gold

It'll do.

Baller unit ?

Baller:

-Wealthy; successful; cool; favorable; anything that is good.

-literally 'the one who balls'. It started as a description for those who would be proficient in a sport like basketball and grew to be a term for describing anyone or anything that was successful; etc. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903905
Share on other sites
Link to post
Share on other sites
Posted
  • Author

It'll do.

Baller:

-Wealthy; successful; cool; favorable; anything that is good.

-literally 'the one who balls'. It started as a description for those who would be proficient in a sport like basketball and grew to be a term for describing anyone or anything that was successful; etc. 

So my current RM650 will work fine with no problems ?

I thought i would need a 750W

CPU - Intel 4670k  Motherboard - Gigabyte GA-Z87X-D3H  RAM - Kingston HyperX 8GB  GPU - EVGA 780  Case - Fractal Design Define R4    Storage - 2TB WD Black, Samsung 840 Evo 128GB     PSU - Corsair RM650  Display -  Benq XL2430T and Acer S235HL  Cooling - CM Hyper 212 Evo  Keyboard - Corsair K95  Mouse - Razer Deathadder  Sound - Sennheiser HD 558                                 Mic - Blue Snowball  Phone- OnePlus One  Tablet - Nvidia Shield

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903911
Share on other sites
Link to post
Share on other sites
Posted

I would not overclock your CPU or graphics cards with a 650 watt. If you want a little headroom, get something bigger. You asked for the minimum, as to say something that will run them and nothing else.

Case: Corsair 4000D Airflow; Motherboard: MSI ZZ490 Gaming Edge; CPU: i7 10700K @ 5.1GHz; Cooler: Noctua NHD15S Chromax; RAM: Corsair LPX DDR4 32GB 3200MHz; Graphics Card: Asus RTX 3080 TUF; Power: EVGA SuperNova 750G2; Storage: 2 x Seagate Barracuda 1TB; Crucial M500 240GB & MX100 512GB; Keyboard: Logitech G710+; Mouse: Logitech G502; Headphones / Amp: HiFiMan Sundara / Mayflower Objective 2; Monitor: Asus VG27AQ

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903914
Share on other sites
Link to post
Share on other sites
Posted
  • Author

I would not overclock your CPU or graphics cards with a 650 watt. If you want a little headroom, get something bigger. You asked the the minimum, as to say something that will run them and nothing else.

If i used my 650w with 2x 780s and something went wrong and the system shut off, would i be able to get a 750w and no components would be damaged ?

CPU - Intel 4670k  Motherboard - Gigabyte GA-Z87X-D3H  RAM - Kingston HyperX 8GB  GPU - EVGA 780  Case - Fractal Design Define R4    Storage - 2TB WD Black, Samsung 840 Evo 128GB     PSU - Corsair RM650  Display -  Benq XL2430T and Acer S235HL  Cooling - CM Hyper 212 Evo  Keyboard - Corsair K95  Mouse - Razer Deathadder  Sound - Sennheiser HD 558                                 Mic - Blue Snowball  Phone- OnePlus One  Tablet - Nvidia Shield

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903928
Share on other sites
Link to post
Share on other sites
Posted

If i used my 650w with 2x 780s and something went wrong and the system shut off, would i be able to get a 750w and no components would be damaged ?

Mine has shut off while overclocking in Crysis 3, which is why I recommend nothing lower than 750w. None of my components were damaged though. I just don't play overclock in that game anymore which is ironically the only game I need to overclock for those extra fps, but I seldom play it anyway.

Case: Corsair 4000D Airflow; Motherboard: MSI ZZ490 Gaming Edge; CPU: i7 10700K @ 5.1GHz; Cooler: Noctua NHD15S Chromax; RAM: Corsair LPX DDR4 32GB 3200MHz; Graphics Card: Asus RTX 3080 TUF; Power: EVGA SuperNova 750G2; Storage: 2 x Seagate Barracuda 1TB; Crucial M500 240GB & MX100 512GB; Keyboard: Logitech G710+; Mouse: Logitech G502; Headphones / Amp: HiFiMan Sundara / Mayflower Objective 2; Monitor: Asus VG27AQ

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903947
Share on other sites
Link to post
Share on other sites
Posted
  • Author

Mine has shut off while overclocking in Crysis 3, which is why I recommend nothing lower than 750w. None of my components were damaged though. I just don't play overclock in that game anymore which is ironically the only game I need to overclock for those extra fps, but I seldom play it anyway.

If i do get another 780 at christmas then i will just use my 650w and see how it goes, if it doesn't work then i will get a larger PSU

CPU - Intel 4670k  Motherboard - Gigabyte GA-Z87X-D3H  RAM - Kingston HyperX 8GB  GPU - EVGA 780  Case - Fractal Design Define R4    Storage - 2TB WD Black, Samsung 840 Evo 128GB     PSU - Corsair RM650  Display -  Benq XL2430T and Acer S235HL  Cooling - CM Hyper 212 Evo  Keyboard - Corsair K95  Mouse - Razer Deathadder  Sound - Sennheiser HD 558                                 Mic - Blue Snowball  Phone- OnePlus One  Tablet - Nvidia Shield

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903958
Share on other sites
Link to post
Share on other sites
Posted

So my current RM650 will work fine with no problems ?

I thought i would need a 750W

750w is recommended since most decent 750w units are sufficient for delivering power for 2 780's. This is not the case for smaller psus. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1903982
Share on other sites
Link to post
Share on other sites
Posted

i'd go for a 750W just to be sure

"Sulit" (adj.) something that is worth it

i7 8700K 4.8Ghz delidded / Corsair H100i V2 / Asus Strix Z370-F / G.Skill Trident Z RGB 16GB 3200 / EVGA GTX 1080Ti FTW3 / ASUS ROG SWIFT PG279Q

Samsung 850 EVO 500GB & 250GB - Crucial MX300 M.2 525GB / Fractal Design Define S / Corsair K70 MX Reds / Logitech G502 / Beyerdynamic DT770 250Ohm

SMSL SD793II AMP/DAC - Schiit Magni 3 / PCPP

Old Rig

i5 2500k 4.5Ghz | Gigabyte Z68XP-UD3P | Zotac GTX 980 AMP! Extreme | Crucial Ballistix Tactical 16GB 1866MHz

Link to comment
https://linustechtips.com/topic/142634-minimum-psu-for-2x-780/#findComment-1904009
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Power Supplies

×