750 watt good enough ?

[JC918]

I currently have a 750 watt rosewill power supply. I hear VERY bad things about Rosewill and I think this PSU is about 2 years old already. I bought my pc used. I am about to do a BIG upgrade from 920 to 970 I don't want to risk damage from a cheap crappy PSU So I am going to get a corsair I think.

My question is will a 750 watt corsair be enough to do what I need. The crappie rosewill seems to be doing good now with the 920 ES at stock volts.

My upgrade will include

12 gigs of tipple channel memory
1 dvd / re write drive
1 blu ray read write drive
1 corsair h50 water cooler
i7 970 overclocked to 4.2ghz
1 ati 5830 may do crossfire with the new 6900 series in the future at stock but don't know
1 TB hard drive
1 2 TB hard Drive
1 solid state drive
5 cpu fans total

 

[simonyee04]

how about Coolermaster?

 

[jsc]

The 750 watt Corsair will be more than adequate for your proposed system.

The cheap CoolerMaster PSU's are junk. The GX series? I don't know.They may be OK, but why risk it?

 

[davcon]

Corsair makes great psu's especially if you're talking a TXV2,HX,orAX.
Here's some power consumption measurements with a i7 965 mid oc.
http://www.guru3d.com/article/radeon-6950-6970-review/11
http://www.guru3d.com/article/radeon-hd-6950-crossfirex-review/14
I would probably buy an 850W unit.
Btw you'll never oc your cpu to 4.2Ghz with a H50 and have good temps.
A 750W Corsair would be fine with your current specs.

 

[christop]

Why not oc your 920 instead of buying a 970? Do you just want the 6 core?

 

[Emperus]

Exactly ^.. Don't go for a 970 if you do not need it.. Also, I did not understand your crossfire idea.. If you were suggesting about crossfiring a 5830 with a 6950/6970 then I think its not possible.. Btw, a 750 watter from Corsair, Antec, XFX or Seasonic will be plenty for your current needs and future plans..

 

[JC918]

Corsair makes great psu's especially if you're talking a TXV2,HX,orAX.
Here's some power consumption measurements with a i7 965 mid oc.
http://www.guru3d.com/article/radeon-6950-6970-review/11
http://www.guru3d.com/article/radeon-hd-6950-crossfirex-review/14
I would probably buy an 850W unit.
Btw you'll never oc your cpu to 4.2Ghz with a H50 and have good temps.
A 750W Corsair would be fine with your current specs.

I thought that the 970 4.2 could be overclocked at 4.2ghz on air cooler with good temps and that the corsair h50 was better then air?

 

[JC918]

Why not oc your 920 instead of buying a 970? Do you just want the 6 core?

I am having issues with my 920 overclocking. First off it's a 920 ES step A and from what I hear the processor is great for over clocking but harder for a amateur like myself to over clock.


I do ALOT of blu ray movie encoding and I want to try and increase my rips down to a hour less.

 

[JC918]

The 750 watt Corsair will be more than adequate for your proposed system.

The cheap CoolerMaster PSU's are junk. The GX series? I don't know.They may be OK, but why risk it?

Thanks I GOT TO GET THIS ROSEWILL CRAP OUT OF MY RIGG before I install the i7 970 I think I am asking for trouble if I don't.