Spec me a new psu

[DarkWhisper]

At the mo my sisters using a casecom 500w.
but ive just bought her a XFX 5770. so ive told her to buy a better psu anyone spec me a good one with about 600-700w

[paulktreg]

Corsair TX or HX range.

Cheers

Paul

[mikemikemi]

At the mo my sisters using a cascom 500w.
but ive just bought her a XFX 5770. so ive told her to buy a better psu anyone spec me a good one with about 600-700w

What's the rest of the system spec? 600-700w sounds over the top to me.

[DarkWhisper]

Would the 650w tx be a good one?

[sadbuttrue]

Even an i7 with a single 5770 will run fine and dandy on a 450w branded PSU.

You seem to have the general rule of cheap/branded PSUs backwards. You're lucky to get 50% of a cheap PSUs rated power at 12v, where most of it is needed. A branded PSU can provide close to 100%.

[jimborae]

Antec True Power New 650w is what I've just upgraded to and it seems to work well. Part modular, godd efficency and very strong rails.

[DarkWhisper]

Even an i7 with a single 5770 will run fine and dandy on a 450w branded PSU.

You seem to have the general rule of cheap/branded PSUs backwards. You're lucky to get 50% of a cheap PSUs rated power at 12v, where most of it is needed. A branded PSU can provide close to 100%.

so you saying i will only get 50% of the rated power on a cheep psu. but will get the full 100% on a branded one. I dont do cheep psu's. but the psu on my sisters computer was bought by her ex. just ordered a XFX 5770 to replace the X1800 gpu. now wont her to get a better psu. something that will protect her computer if she has a power problem

[DarkWhisper]

Oh sorry pc spec is
Amd 6400-3.2 stock
XFX 5770
4gb ram 800mhz
running two hdd 500gb each
two dvd drives
3 120 mill fans

[pipTheGeek]

I'm running an overclocked core i7 920, raptor HDD, GTX260 and a couple other hard drives, all currently on a 500 watt supply. For your (sisters) system I would look at a Corsair between 450 and 550 watts. Unless you are planning some big power consuming upgrade in the near future.

[DarkWhisper]

Will ive i might sell her my old components when i go i7
Q9650
asus rampage formula
just wanted to be on the safe side. so 550w would be have good head room for upgrade?
Just looked at your speedtest.net score. just tested hers and shes getting is there any setting to sort out on her pc. because she surpost to be getting 20meg.

Any setting to sort out in task manager.
Her ex has done a lot of messing about with settings

[sadbuttrue]

so you saying i will only get 50% of the rated power on a cheep psu, but will get the full 100% on a branded one?

The value isn't fixed, some provide more than others. Average is ~90%.

Some examples:

Cheap 500w PSU ~20A @ 12v (240w) = 48%.
Seasonic 330 24A @ 12v (288w) = 87%
Corsair cx400 30A @ 12v (360w) = 90%
Corsair vx450 33A @ 12v (396w) = 88%
Corsair hx650 52A @ 12v (624w) = 96%
I think the hx1000 provides the full 1000w @ 12v on 2 rails.

As you can see, a 330w branded psu provides more power than a 500w cheap psu.

[matty-hodgson]

I'd recommend you just get a 500W Silverstone or Seasonic tbh. You can get them for around £50 - £55 on www.Scan.co.uk

[DarkWhisper]

She going to put a order in for one of these
http://www.scan.co.uk/Products/550W-...-year-Warranty

[mikemikemi]

She going to put a order in for one of these
http://www.scan.co.uk/Products/550W-...-year-Warranty

That'll be more than enough for her rig.

[DarkWhisper]

its been a while since i bought my galaxy. so kind out of touch. thanks for help