What power supply should I use

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garywc

Honorable
Jun 28, 2013
12
0
10,510
Hello all. I'm in the process of my first computer build and I'm halfway there but unsure of what parts I should do next. What I have so far:
Asus z77 Sabertooth
Sapphire HD 7970 GHZ Vapor X 3gb
G Skills 2 x 8gb DDR3
i7 3770k

so now I need to get

power supply (750w or better)
Case
HDD
SSD

any suggestions would be greatly appreciated.

Thanks
 
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Onus

Onus

Titan
Jan 27, 2006
37,037
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A quality 550W PSU is sufficient for your rig. I have a HD7970 overclocked to 1130MHz that is mining BTC so it runs around 98%, and the entire rig draws around 311W from its UPS. I am using a 550W Antec Truepower New for it. Anything built by Seasonic would be a good choice, like their 550W "GS" model, or a 520W or 620W SII or MII.
 
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garywc

Honorable
Jun 28, 2013
12
0
10,510


Ok I appreciate it. I'm a newbi and this is my first build so I was a bit unsure. The VGU suggested a minimum of 750W so I just wanted to confirm.
 
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swifty_morgan

Illustrious
Feb 10, 2006
13,566
1
42,960
I'm a stickler to get more than you really need. I run a TX850w and don't need it, but the machine has had zero problems since new... that would be when the Intel Q9550 came out. How many years, I don't know.

Try and find a QUALITY, name brand power supply with 50 or 60amps on the 12v and you should have no problems for years to come.

Those "just enough" power supplies don't cut it in my book. They run hot and make your other components run hot and suffer and run inefficiently.

don't scrimp, they are too important.

 
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Onus

Onus

Titan
Jan 27, 2006
37,037
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89,965
A PSU is most efficient when operating at 40%-60% of its capacity. A 550W unit would put you in that range, but so would a 750W unit. Go for quality over size though.
...but Swifty is correct; it could do it, but I would not run that rig on a Seasonic 360G even if that PSU could handle it. Looking at my .sig, you can see that my other systems also use bigger PSUs than required.
 
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garywc

Honorable
Jun 28, 2013
12
0
10,510


That makes sense.

Ive gone a bit overbaord on my build already for what I need so why stop with the power source.

Thanks
 
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garywc

Honorable
Jun 28, 2013
12
0
10,510


Thanks for the link, looks like it can be a great help

you guys have any suggestions on a good case to fit all this in and good cooling.

I had looked at the rockwell thor but damn that thing looks huge
 
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Onus

Onus

Titan
Jan 27, 2006
37,037
12
89,965
In general, I like Rosewill cases. I've bought many of their budget models (<$50) over the years, and none sucked. I used to buy Cooler Master cases, but almost every one of them had minor, mostly fixable (but irritating) or cosmetic issues like untapped screw holes, useless tool-free mounts, and misalignment. None of the Rosewill cases had ANY of those problems. When I then found out that CM puts liar-labels on many of their PSUs (on some models including claims they have an OCP circuit, found in technical reviews to be missing), that dishonesty cemented their place on my personal "Do Not Buy" list.
Rosewill cases tend to come with more fans than their similar competitors', and they are generally quiet.
If you're looking for something a little more upscale, try Antec, Enermax, or Fractal Design. The very best in fit and finish (but not necessarily cooling) will come from Lian Li, but you'll pay for it.
 
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