Choosing new PSU to power HD5770

HI Guys
I recently posted a thread PSU Not working after clicking sound: http://www.tomshardware.co.uk/foru [...] d#t2400566, it seems my PSU is dead so i need to purchase a new PSU

old PSU (not working/dead): Alpine 600W, :http: //www.tekheads.co.uk/product/600Watt-PSU-120mm-Red-Fan-2x-SATA-Alpine-Retai-Boxed_36228.html

new PSU Choices

(1) Alpine 650w PSU: http://www.dabs.com/products/best- [...] ntent=Q200

(2) Ace 650w PSU: http://www.ksn-online.co.uk/compon [...] 10478.html

specs of 2nd PSU :
+3.3V +5V +12V1 +12V2 -12V +5VSB
26A 28A 18A 18A 0.3A 2A
650W

which PSU is better? as i need a new PSU which can power: XFX/ATI Radeon HD5770 (Reference Model),as I will also be upgrading my onboard Graphics to this dedicated Graphics card.

XFX/ATI Radeon HD5770 (Reference Model)
http://www.google.co.uk/imgres?q=x [...] 29,r:6,s:0

any answers/opinions would be greatly appreciated .

Message edited by pb18 on 11-20-2011 at 09:39:07 PM

Reply to pb18

Complete shite!
You're going to have to spend some dosh mate!
Instead of spending 15 quid on another unit that'll blow up.
Spend @£40 on something that's reliable and carries a 3yr warranty.
Corsair Builder Series CX430 V2
http://www.digital-fusion.co.uk//p [...] K/96002645
XFX Pro 450W
http://www.micomonline.co.uk/produ [...] %2DU2B9&sf

Message edited by davcon on 11-20-2011 at 06:06:51 PM

Reply to davcon

could you recommend a good psu?.....

Reply to pb18

its recommended that you post full specs of your system.
5770 isn't a demanding card , consumes under 100 W on full load.

problem with second link is it doesn't like specs of PSU i.e. current on different voltage rails.
P.S. i wouldn't recommend either of two because
a) I'm not familiar with brands
b) 14~20 pounds for 650W PSU? i have not heard of such

Message quoted 1 times

Reply to lost_in

Specs

Packard bell Ixrtreme X5620 (M3720)

Core 2 Quad Q8300 2.5GHz

4GB RAM

640GB WD Caviar Blue

Broken/Dead 600w Alpine PSU

motherbaord with Onboard Nvidia Geforce 7100 Graphics (Upgrading to XFX/ATI Radeon HD5770)

Reply to pb18

any more suggestions for PSU's as i need a good PSU around £35-£40

Message quoted 1 times
Message edited by pb18 on 11-20-2011 at 06:37:34 PM

Reply to pb18

pb18 wrote :

any more suggestions for PSU's as i need a good PSU around £35-£40

Corsair Builder Series CX500 V2
http://www.digital-fusion.co.uk//p [...] K/96002646

Reply to davcon

400W BeQuiet Power 80Plus GOLD for £40.

is this any good Evo Labs 650w Modular 80+
http://www.airetechit.co.uk/e-shop [...] livemode=1

(1) 80+ efficient
(2) independent Double 12v rails
(3) Modular

would you recommend this?

Reply to pb18

Stick with brand names that have a 3yr warranty.
Any one i suggested will power your specs just fine and are well-known and reviewed units.
Cheap brands that boast 650W seldom can deliver a 350W continous load.
I noticed the unit you link includes no details = red flag!

Message quoted 1 times

Reply to davcon

Every PSU that wasn't linked by you in this thread will rn that HD 5770, if you low on cash you can get sometime like this CoolerMaster GX-450 80Plus Bronze PSU which supplies more power than the Corsair CX500V2 and has a 5 year warranty vs the (3)? of the CX500.

Message quoted 1 times
Message edited by Yummerzzz on 11-20-2011 at 07:58:51 PM

Yummerzzz wrote :

Every PSU that wasn't linked by you in this thread will rn that HD 5770, if you low on cash you can get sometime like this CoolerMaster GX-450 80Plus Bronze PSU which supplies more power than the Corsair CX500V2 and has a 5 year warranty vs the (3)? of the CX500.

in north america (could be different in the UK) the CX has a one year warranty and the CX v2 comes with a three year.

frankly an antec earthwatt 380w would power a system with a 5770 with no issue

some other budget series besides the earhtwatt and corsair CX

antec neo eco
antec HCG
ocz modstream
ocz ZS

Reply to dirtyferret

lost_in wrote :

its recommended that you post full specs of your system.
5770 isn't a demanding card , consumes under 100 W on full load.

problem with second link is it doesn't like specs of PSU i.e. current on different voltage rails.
P.S. i wouldn't recommend either of two because
a) I'm not familiar with brands
b) 14~20 pounds for 650W PSU? i have not heard of such

2nd link specs

http://www.ksn-online.co.uk/compon [...] 10478.html

+3.3V +5V +12V1 +12V2 -12V +5VSB
26A 28A 18A 18A 0.3A 2A
650W

Message quoted 1 times

Reply to pb18

pb18 wrote :

2nd link specs

http://www.ksn-online.co.uk/compon [...] 10478.html

+3.3V +5V +12V1 +12V2 -12V +5VSB
26A 28A 18A 18A 0.3A 2A
650W

it's pure junk

can you afford this unit?
http://www.ksn-online.co.uk/compon [...] -7914.html

or even this one
http://www.ksn-online.co.uk/compon [...] -9348.html

Message quoted 1 times

Reply to dirtyferret

dirtyferret wrote :

it's pure junk

can you afford this unit?
http://www.ksn-online.co.uk/compon [...] -7914.html

or even this one
http://www.ksn-online.co.uk/compon [...] -9348.html

Thanks for suggestions on those two PSU I'll have a good look at them, also for that PSU I stated above i should use roughly

95W core 2 Quad Q8300 95w=7.9A
ATI HD5770 (100W)/108W=9.0A
others: (Motherboard, RAM, Hard drive etc) 3-4A

Total=19.9A/20.9A

Graphics card 9.0A
95w core 2 Quad Q8300 7.9A =16.9 on one 18A Rail (1st Rail=1.1A spare)

others: (Motherboard, RAM, Hard drive etc) use 3.0-4.0A one 18A Rail (2nd Rail=14-15A spare)

1st Rail= 18A
2nd Rail=18A
Total (each) 18A= Shared 36A

this is what i worked out (roughly)

Message quoted 1 times
Message edited by pb18 on 11-20-2011 at 10:21:19 PM

Reply to pb18

pb18 wrote :

Thanks for suggestions on those two PSU I'll have a good look at them, also for that PSU I stated above i should use roughly

95W core 2 Quad Q8300 95w=7.9A
ATI HD5770 (100W)/108W=9.0A
others: (Motherboard, RAM, Hard drive etc) 3-4A

Total=19.9A/20.9A

Graphics card 9.0A
95w core 2 Quad Q8300 7.9A =16.9 on one 18A Rail (1st Rail=1.1A spare)

others: (Motherboard, RAM, Hard drive etc) use 3.0-4.0A one 18A Rail (2nd Rail=14-15A spare)

1st Rail= 18A
2nd Rail=18A
Total (each) 18A= Shared 36A

this is what i worked out (roughly)

Even though with your system you should be around 250w during gaming, it's doubtful the PSU you linked can provide stable power on it's 12v rail. I doubt that unit can provide 300-400w power. A solid 650w PSU will provide 50a+ on its 12v rail. On that unit, the 12v rail (its one rail with a split) is highly underpowered which is a dead give away of a bad (and dangerous )PSU. here are some articles that may help you.

difference between three units with the same "stated" power
http://www.anandtech.com/show/3985 [...] ent-prices

review of the antec 380w
http://www.anandtech.com/show/3902 [...] green-380w

Message quoted 1 times

Reply to dirtyferret

dirtyferret wrote :

Even though with your system you should be around 250w during gaming, it's doubtful the PSU you linked can provide stable power on it's 12v rail. I doubt that unit can provide 300-400w power. A solid 650w PSU will provide 50a+ on its 12v rail. On that unit, the 12v rail (its one rail with a split) is highly underpowered which is a dead give away of a bad (and dangerous )PSU. here are some articles that may help you.

difference between three units with the same "stated" power
http://www.anandtech.com/show/3985 [...] ent-prices

review of the antec 380w
http://www.anandtech.com/show/3902 [...] green-380w

@ dirtyferret thanks for the links

im quite new to working out PSU specs such as 12A Rails ect, but i think im now getting the hang of working out all this stuff also those links you provided are really useful & also get that cheaper psu's wont always supply the full 600watts such as a proper quality PSU maybe 400watts or so

the reason im quite new to working out PSU specs is because i just had normal desktops and didn't have to consider the Power requirements for Graphics cards ect

thanks

Message edited by pb18 on 11-20-2011 at 10:51:14 PM

Reply to pb18

What about this PSU: Coolermaster eXtreme Power Plus 500W

http://www.coolermaster.com/produc [...] ct_id=3738

http://www.ebay.co.uk/itm/NEW-ATX- [...] 235wt_1002

(1) only £35.00
(2) 70% efficiency at full load (not quite 80% efficency/80+ but its pretty good 70%?)
(3) Good brand name of Coolermaster
(4) Two year warranty
(5) As its a good brand should deliver full 500 watts
(6) also states: With a life-time of 100,000 hours and protection for OVP/OCP/OPP/SCP, these power units are made to last

is this a good PSU to power XFX/ATI Radeon HD5770?

Message edited by pb18 on 11-21-2011 at 02:09:30 AM

Reply to pb18

davcon wrote :

Stick with brand names that have a 3yr warranty.
Any one i suggested will power your specs just fine and are well-known and reviewed units.
Cheap brands that boast 650W seldom can deliver a 350W continous load.
I noticed the unit you link includes no details = red flag!

What about this PSU: Coolermaster eXtreme Power Plus 500W

http://www.coolermaster.com/produc [...] ct_id=3738

http://www.ebay.co.uk/itm/NEW-ATX- [...] 235wt_1002

(1) only £35.00
(2) 70% efficiency at full load (not quite 80% efficency/80+ but its pretty good 70%?)
(3) Good brand name of Coolermaster
(4) Two year warranty
(5) As its a good brand should deliver full 500 watts
(6) also states: With a life-time of 100,000 hours and protection for OVP/OCP/OPP/SCP, these power units are made to last

is this a good PSU to power XFX/ATI Radeon HD5770?

Reply to pb18

you won't get a good PSU under the price of the antec i linked, including that CM 500w for $35 and 70% efficiency is rather bad. Also, CM makes plenty of crap along with their decent PSU.

if you simply want to but a cheap junk PSU then go ahead, it's your PC

Reply to dirtyferret

Hey i know CoolerMaster may not be the best when it comes to Manafacturing best quality PSU's But why are they a Crap brand, they make good cases e.g. HAF X & also make some very good case fans

what makes you say its junk?, anyway i think i know all i need to buy a good psu