Spec ne a PSU

stokecity_m · 21 Jun 2009 at 22:17

will be going in a Antec 300 so would prefer modular.

needs to power
am3 chip
4890 x2
2/3hdd
2 optical drives.

Cheers

Saul · 21 Jun 2009 at 22:22

I'd say a good-brand (Corsair / Be Quiet / others) 700W at the very minimum. Are you planning to overclock (GPU or CPU)?

Kennysevenfold · 21 Jun 2009 at 22:37

Do you have a budget in mind mate.?

RJC · 21 Jun 2009 at 22:37

Just done a check on mine with a 4870x2, I7 at stock and 2 hard discs pulls 433w with prime and 3d win mark running, this also includes monitor and printer.

Any quality brand with 620w > will be enough.

stokecity_m · 21 Jun 2009 at 22:41

cheers guys - was looking at about 650watts+

so what are "good" brands?

budget - cheap as posible really - but still a goodish make.
looking at getting the amd3 x4 955 so wont be overclocking for a while.

RJC · 21 Jun 2009 at 22:42

Corsair, Pc power & cooling, Be Quiet and Seasonic.

rebeeper · 21 Jun 2009 at 22:47

BeQuiet! Dark Power Pro 650W would be my first choice.

4 x 12v rails (20A)
2 x 6+2pin pci-e
high efficiency
very quiet fan (with slightly odd post shutdown cooling)

Kennysevenfold · 21 Jun 2009 at 22:48

rebeeper said:
BeQuiet! Dark Power Pro 650W would be my first choice

This

stokecity_m · 21 Jun 2009 at 23:00

cheers guys

stokecity_m · 21 Jun 2009 at 23:13

just had alook and thats the top of my budget - anyone recommend a cheep one?
if not i will go with that one.

RJC · 21 Jun 2009 at 23:16

This one - Clicky if your not worried about modular cables.

stokecity_m · 21 Jun 2009 at 23:18

thats £30 cheaper - how much difference than a modular one is it?

only using a smallish case etc.

RJC · 21 Jun 2009 at 23:24

Only downside is trying to sort out the spare cables which are not being used, but as the cables all come out one end you can place all the cable behind the mobo tray if there is room. With a modular these can be unplugged but I find trying to sort out the cable's slightly trickier as they use the whole front of the psu.

Edit: There is not much difference only cable can be removed on one and not the other, also what I wrote above

Dauthi · 22 Jun 2009 at 05:52

Doubt 650w is enough tbh the 4870 peaked at about 250w so the 4890 and after searching for 2 minutes out pops http://www.tomshardware.com/reviews/radeon-hd-4890,2262-13.html.
2x 285=570w
a cpu= 75w
then u have all ur motherboard/fans/hard drives/optical drives probably adding another 80w.
Then you also have extra draw when you overclock.

probbly looking at the 750/850w range.

JonJ678 · 22 Jun 2009 at 06:26

Dauthi said:
probbly looking at the 750/850w range.

And from this reasoning we have 1.2kW power supplies available for purchase.

I second Corsair, Pc power & cooling, Be Quiet or Seasonic as the ones to look at.

RJC · 22 Jun 2009 at 07:10

Dauthi said:
Doubt 650w is enough tbh the 4870 peaked at about 250w so the 4890 and after searching for 2 minutes out pops http://www.tomshardware.com/reviews/radeon-hd-4890,2262-13.html.
2x 285=570w
a cpu= 75w
then u have all ur motherboard/fans/hard drives/optical drives probably adding another 80w.
Then you also have extra draw when you overclock.

probbly looking at the 750/850w range.

The article shows wattage at AC source, this includes CPU, HD'S & motherboard ect.

rebeeper · 22 Jun 2009 at 11:12

Don't go skimping on your PSU - stable voltages are key to stable systems. I bought a cheap one on my first build and spent a month tearing my hair out trying to find out where the stability problems were. Luckily the PSU then died and I replaced with a decent one and all my problems went away. Once you have taken all your components in and out of your rig a few times a day in different orders to find a problem to no avail you will understand...

rebeeper · 22 Jun 2009 at 11:13

BTW: Custom PC magazine has a lab test of loads of PSU's this month....