• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

evga 7900 gtx using a 400W psu?

NinjaGaiden55

New Member
Joined
Nov 21, 2006
Messages
40 (0.01/day)
Hey! This is NinjaGaiden. I was wondering if this setup is possible and if i could damage the motherboard and other components.

The power supply i am going to use is an Antec 400W SmartPower 2.0. Here is more info:

-> Antec 400W SmartPower Link

And here's a link for the eVGA 7900 GTX
-> eVGA 7900 GTX Link

Just so you know, the eVGA has stock clocks. Any advices would be appreciated =)
 

Namslas90

New Member
Joined
Aug 27, 2006
Messages
4,846 (0.75/day)
Location
Earth
check the specifications again. The PSU is rated at 15amps on the 12v rail and the card needs 22 amps.
 
Joined
Jan 25, 2006
Messages
1,470 (0.22/day)
Processor Ryzen 1600AF @4.2Ghz 1.35v
Motherboard MSI B450M PRO-A-MAX
Cooling Deepcool Gammaxx L120t
Memory 16GB Team Group Dark Pro Sammy-B-die 3400mhz 14.15.14.30-1.4v
Video Card(s) XFX RX 5600 XT THICC II PRO
Storage 240GB Brave eagle SSD/ 2TB Seagate Barracuda
Display(s) Dell SE2719HR
Case MSI Mag Vampiric 011C AMD Ryzen Edition
Power Supply EVGA 600W 80+
Software Windows 10 Pro
umm it has dual 12v rails so it should be fine
 

NinjaGaiden55

New Member
Joined
Nov 21, 2006
Messages
40 (0.01/day)
The PSU used 15A but the card uses 22A on the 12v rail. Will i damage the components in anyway if i tried? Or do you think it's better to get a new PSU then try it out...
 

Athlon2K15

HyperVtX™
Joined
Sep 27, 2006
Messages
7,909 (1.23/day)
Location
O-H-I-O
Processor Intel Core i9 11900K
Motherboard MSI Z590 Carbon EK X
Cooling Custom Water
Memory Team DDR4 4000MHz
Video Card(s) ASUS TUF RTX 3080 OC
Storage WD WN850 1TB
Display(s) 43" LG NanoCell 4K 120Hz
Power Supply Asus Thor 1200w
Mouse Asus Strix Evolve
Keyboard Asus Strix Claymore
does that psu have to rails at 15a each?
 

NinjaGaiden55

New Member
Joined
Nov 21, 2006
Messages
40 (0.01/day)
12v1 has 10A. 12v2 has 15A. Would it work? The card requires a min. of 450W but this PSU only has 400. I dont know if i should try it out or not =( I dont want to risk doing any damage. Please be sure of what you're typing. Thanks for helping =)
 

SpoonMuffin

New Member
Joined
Jan 11, 2007
Messages
318 (0.05/day)
Processor x2 4000+@2.96gz, thermalright ultra90 with 90mm panaflow ultra speed
Motherboard biostar tforce 550
Cooling Thermalright ultra90,90mm panaflow ultra speed fan
Memory Transend AxeRam ddr2 800@986mhz 5-5-5-15 2t TrFc 75ns
Video Card(s) x1900xtx+zalman vf900cu cooler
Storage 80+160+200+250gb
Display(s) 20.1in gaming lcd 1600x1200@120hz(dvi-d)
Case cg-briza (thx again to ashen)
Audio Device(s) realtek 8ch hd audio latist drivers
Power Supply 400watt fsp 12cm fan psu
Software windows 2003 sp2(custom build),nod32,opera9,tcmp,vlc,udrfrag,perfect disk,utorrent
antech has a bad rep at the moment for putting out unreliable psu's

go fortron 41bucks you can get the 400watt unit i use, its got 18+`6amps on the 12v rails and is more then enought to power 5 hdds, x1900xtx(at toxic bios) 3500+at 3.03 gz, 2 optical drives and a crap load of usb devices that are usb powered.

fortron is a top maker if your wondering.
 
Joined
May 6, 2005
Messages
2,792 (0.40/day)
Location
Tre, Suomi Finland
System Name Ladpot ◦◦◦ Desktop
Processor R7 5800H ◦◦◦ i7 4770K, watercooled
Motherboard HP 88D2 ◦◦◦ Asus Z87-C2 Maximus VI Formula
Cooling Mixed gases ◦◦◦ Fuzion V1, MCW60/R2, DDC1/DDCT-01s top, PA120.3, EK200, D12SL-12, liq.metal TIM
Memory 2× 8GB DDR4-3200 ◦◦◦ 2× 8GB Crucial Ballistix Tactical LP DDR3-1600
Video Card(s) RTX 3070 ◦◦◦ heaps of dead GPUs in the garage
Storage Samsung 980 PRO 2TB ◦◦◦ Samsung 840Pro 256@178GB + 4× WD Red 2TB in RAID10 + LaCie Blade Runner 4TB
Display(s) HP ZR30w 30" 2560×1600 (WQXGA) H2-IPS
Case Lian Li PC-A16B
Audio Device(s) Onboard
Power Supply Corsair AX860i
Mouse Logitech MX Master 2S / Contour RollerMouse Red+
Keyboard Logitech Elite Keyboard from 2006 / Contour Balance Keyboard / Logitech diNovo Edge
Software W11 x64 ◦◦◦ W10 x64
Benchmark Scores It does boot up? I think.
the card [7900GTX] needs 22 amps.
You mean 7900GTX consumes 264W?!?
Pass me some of that what you've been smoking.

Seriously,
the 22A is a recommendation for total amperage of the 12V rail of the PSU powering the whole computer using the quoted VGA.

NinjaGaiden55,
The 400W Antec you linked will do just fine.
 
Top