Reccomended psu for gtx 650 ti

[lurrps]

Hello,
I have a 480 watt PSU and I want to but a GTX 650 Ti but it recomends 400 watts. I have 3 hardrives and a amd 6000+ that pulls 80 watts. Do I have enough to run a GTX 650 Ti.

 

[lurrps]

What's more powerful a gtx 650 or a 7770

 

[johnsonjohnson]

HD 7770

 

[nukemaster]

The 650 ti is faster then the 7770, while the non ti is slower.

I did not see a combined on the 12 volt rail. If i recall right, I saved about 5-10 watts by pulling a hard drive from my system. I have a sneaking feeling because of the power supply, it pushes more 3.3 and 5 volts then 12. This is not ideal for today's systems.

Its all about power supply quality. A quality 300 watt WILL actually run a 650ti on a non power hungry system(95 watt cpu and low powered board). are 6000+ not a 125 watt rated part?

 

[lurrps]

Sorry nuke master I did not really understand the last paragraph my 6000+ is the F3 the 85 watt version

 

[johnsonjohnson]

He meant that a quality PSU with low advertised wattage is better than a mediocre one with high (overreported) advertised wattage.

 

[nukemaster]

I did not know they had an 80 watt version of that cpu, but If you look at the power supply, it seems to only list a combined wattage for the 5/3.3 lines. This makes the design older. It also makes it hard to know just how much 12 volt power the unit actually has.

You can NOT just add the 2 rails because in most cases they come from a single rail that is not big enough to drive BOTH at full power.

Newer power supplies push most of the power into a large 12 volt rail(leaving the rest for standby and other things). That rail powers most of the system and then DC-DC conversion uses a part of it to power the 3.3 and 5 volt rails. This means higher 5 and 3.3 voltage use will take some from the 12 volt rail, but it also means that the 12 volt rail has MUCH more power then older power supplies.

For example, and older Antec TruePower(once though of as VERY good) 380 has over 100 watts less(216 watts) then the newer Earth watts 380 watt power supply(324). By the same note, I have a 300 watt power supply(22 amps @ 12 volts or 264 watts) with more power then the old 380 watt TurePower 380.

In a nutshell newer hardware uses power differently then older hardware and as such, many times and older power supply(even a higher wattage one) may not be suitable for a newer system or hardware.

This site lists your power supply as having 20amps(MAX) on its large rail that feeds the 2 small rails. This puts your just within the general requirements.

http://archive.unlimitpc.com/review/5_enermax/ATX%2012V%20Ver.2.0%20%20Coolergiant%20VHB%20P%20Series/Coolergiant%20VHB%20P%20Series.htm

I am not 100% sure how accurate this would be, but you see it is kind of close.

 

[lurrps]

Any recommended psu then that will work and be cheap also

 

[lurrps]

So basicly my power supply will not work'right

 

[Rockdpm]

Right

 

[johnsonjohnson]

I'd say replace the PSU if you want to be on the safe side.

 

[nukemaster]

How much are you willing to spend. Other users have linked some good(cheap-ish) units.

Sunius recommends

Corsair CCX430
32 amps @ 12 volts or 384 watts

Antec VP 450
30 amps @ 12 volts or 360 watts

lurrps and johnsonjohnson recommend

XFX CORE 550PRO
44 amps @ 12 volts or 528 watts

All of those will run your system with power to spare.

While I personally run a GTX 650 ti on a 300 watt(22 amp) power supply. All the parts in the system had been picked with low power in mind.

 

[lurrps]

Ahh you have a 650 ti
So I was thinking about the xfx one

 

[lurrps]

Also today I found out I'm getting a sound card as a gift from a friend so that will take more power so well I guess I have to get a new one any way

 

[Sunius]

Great advice for nukemaster. I want to also congratulate you on deciding to get a new power supply unit, trust me, you don't want to risk running underpowered power supply unit in your PC. One such power supply unit caught fire in front of my eyes some time ago.