Is a 400w PSU enough for a GTX 970?

[ericramos1990]

I am currently using a 110W GTX 650 TI, and I want to upgrade to a GTX 970 (148W), just 38 w more!

I did the psu calculator things, and it said I have enough, I just want feedback from experienced dudes like yourselves.

Thanks!
-Eric

 

[Snipergod87]

possibly but the 970 can peak to near 250w-300w. I would suggest something higher like 500 so the PSU wont be burn out as quick and also a reputable brand

 

[WildCard999]

What is the total draw of your system currently? 38w could make a significant difference if the draw is close as is. Also which brand of PSU do you have?

 

[Traciatim]

It's possible depending on your other gear. If you have a fairly new i3/i5/i7 or similar and your power supply is a solidly build one and not some OEM supply that came with a Dell or something like that then probably.

Do you know the model of your supply and your other equipment you have? If not, can you see the rating sticker on the supply and give the amp ratings of any +12v lines it had (you should see something like the chart here: http://www.corsair.com/en-ca/cx500-80-plus-bronze-certified-power-supply on the tech specs tab)

 

[Joseph DeGarmo]

This PSU would work great with a GTX 970.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013

 

[ericramos1990]

Hello guys first I want to say thanks for the quick responses.
Secondly, I want to apologize for not posting my specs for you guys initially, I should have known better.

Current PSU: "PC Power and Cooling Silencer Mk III Series 400W Modular Power Supply features 100% Japanese 105°C rated Capacitors"

CPU: AMD 760K Richland Quad-Core 3.8GHz
Hard Drive: Seagate DB35 160GB 7200 RPM
RAM: Team Vulcan 8GB (2 x 4GB)

Current GPU: GIGABYTE GeForce GTX 650 Ti 1GB (110W), Future GPU: GTX 970 (148W)

I'm probably going to end up buying a better platinum, and higher watt PSU, but it would be nice to know if I actually need to or not.

Once again, thanks guys!

 

[Traciatim]

Personally I would replace it, though it's a nice PSU it's rated at 360 watts on it's 12v lines. you would be looking at 300 watts on your CPU and GPU alone plus all the other components which is IMO getting uncomfortably close to it's rated capacity. As a general rule you should stay under 80% capacity for longevity, reliability, and stability... which puts the 'rule of thumb' at 288 watts as a comfortable level.

I think at this point you've pretty much capped it out and putting more, though it may run, isn't the best plan. Maybe save it to cycle this machine down to be a home theater PC when you get a new machine in the future since it looks like a fairly solid supply.

 

[ericramos1990]

Thanks all, I ended up getting the Corsair Professional Series 760 Watt ATX/EPS Modular 80 PLUS Platinum, have a good one!

 

[Neel__Geek]

No do not use 400 w. My I lost my psu(400 w) in 2 days after using it on gtx 970 .