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Need a power supply recommendation please

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September 14, 2009 1:01:44 PM

Hello, this is my rig:

CPU: Athlon II x2 240
MOBO: GIGABYTE GA-MA790X-UD3P (AM2+)
RAM: 1x 1GB DDR2 800Mhz + 1x 2GB DDR 800Mhz - Edit: Oops, accidentally put 400Mhz instead of 800Mhz.
GPU: XFX 9600GT 512MB
HDD: 2x SATA 3.5" 7,200 RPM
DVD: 1x DVD-RW
Others: A USB powered MIDI keyboard + an external USB soundcard (however it's not powered via USB, it has it's own power adapter)

Now I've been looking at a few power supplies available in Croatia. There are some cheap Xilence 800w power supplies, but I've read mixed reviews about these. Other brands include Antec, Corsair, Thermaltake, Coolermaster, OCZ, altho some of these can be quite pricey. I'm not sure just how much power I will need to power this rig. So could you give me your recommended Wattage estimate? I want something stable, and if it's possible not too loud. I don't mind about cable management or modularity. If you could recommend one of these brands/products, that would be cool.

Cheers!
September 14, 2009 1:12:24 PM

You'll need a power supply with at least 1 PCI-E connector and 20A on the 12V rails (240W combined maximum wattage), but 22A would be better: the OCZ Stealthstream 400W would be a good choice, or the Gigabyte Superb 460W, or the Antec Earthwatts EA 380.
a b ) Power supply
September 14, 2009 1:20:58 PM

I agree for OCZ 400w and EA 380 suggested by Gulli.
Don't go for any unknown brand.
Like that Xilence.They will always cause trouble.
They might go boom or the fan would make noise.

Another option is Corsair CX400.Decent 30Amps on Single 12v Rail.
Related resources
September 14, 2009 1:36:17 PM

Thermaltake is good and about 500w is fine
its better to have a little more than what you need incase of future upgrades
September 14, 2009 1:39:18 PM

Hmm. Well the thing is, I had a rig before this with a Fortron 400w PSU. The specs were similar to this one except I had an older Athlon x2 5600, a different mobo and an older ATI GPU. But as soon as I bought the 9600GT the whole system was getting slow, some games would have alot of input lag, and the system would sometimes not boot at all. I tried using the 9600GT on my friends PC with an even slower CPU (but a better power supply) and everything worked out ok.

So I want to be safe and buy something a little bit more powerfull than 400w. I guess a Corsair or OCZ with 500w and the specs you guys provided would be ok.

Thanks for the numbers and recommendations!
September 14, 2009 1:47:56 PM

yep at least. Power.s last for years and if you decide to get a more powerfull card or upgrade the mb or cpu its better to have and not need than to need and not have ..
500w+ my recomindation
a b ) Power supply
September 14, 2009 2:09:04 PM

Every 400w psu is not the same.
You had a low quality one.

The Antec or corsair are very good brand.

There is one term associated with PSU known as its efficiency.
Means how much wattage can it give.(Which is obviusly less than the listed )

The generics have 50-60% efficiency and those mentioned have above 80% efficiency.

Even an efficient 400w will be more than enough for your rig.You can even overclock with them.

I am myself using a 9800GT on that Corsair 400W I listed.

You can save money by getting 400w one.
September 14, 2009 3:55:03 PM

shubham1401 said:
Every 400w psu is not the same.
You had a low quality one.

The Antec or corsair are very good brand.

There is one term associated with PSU known as its efficiency.
Means how much wattage can it give.(Which is obviusly less than the listed )

The generics have 50-60% efficiency and those mentioned have above 80% efficiency.

Even an efficient 400w will be more than enough for your rig.You can even overclock with them.

I am myself using a 9800GT on that Corsair 400W I listed.

You can save money by getting 400w one.

I see. Well I'll probs get something like that. Thanks.
September 14, 2009 4:04:46 PM

i have a tagan 1100 Watt psu but for your system and for further system upgrades i suggest you a
Tagan TG700-BZ PipeRock 700W about 130€
or
Corsair CMPSU-650TX 100€ but you kann also get a other one with 50 Watt from superpower it is strong enaugh but not a really known brand spec: Gaming Power Suply ModelNo: SPS-750SP.(14)

hope i could help
greets laluma22
September 14, 2009 5:37:34 PM

laluma22 said:
i have a tagan 1100 Watt psu but for your system and for further system upgrades i suggest you a
Tagan TG700-BZ PipeRock 700W about 130€
or
Corsair CMPSU-650TX 100€ but you kann also get a other one with 50 Watt from superpower it is strong enaugh but not a really known brand spec: Gaming Power Suply ModelNo: SPS-750SP.(14)

hope i could help
greets laluma22


1100W? The OP wants to power a dual core PC, not a Las Vegas neighbourhood.
a b ) Power supply
September 14, 2009 5:45:43 PM

power to the people use it to light up your street
a b ) Power supply
September 14, 2009 6:04:44 PM

laluma22 said:
i have a tagan 1100 Watt psu but for your system and for further system upgrades i suggest you a
Tagan TG700-BZ PipeRock 700W about 130€
or
Corsair CMPSU-650TX 100€ but you kann also get a other one with 50 Watt from superpower it is strong enaugh but not a really known brand spec: Gaming Power Suply ModelNo: SPS-750SP.(14)

hope i could help
greets laluma22



LoL.....
Will surely power a cyber cafe........... :sol: 
September 14, 2009 6:10:58 PM

hey hey lol i said i have 1100 but i also have 2 9800GX2 inside and i7^^
so i need it :p  i told him aboout the corsar or piperock tagan 700watt or 750

never meant him to take 1100

September 14, 2009 6:22:34 PM

laluma22 said:
hey hey lol i said i have 1100 but i also have 2 9800GX2 inside and i7^^
so i need it :p  i told him aboout the corsar or piperock tagan 700watt or 750

never meant him to take 1100


He doesn't need more than a quality 400W PSU.
September 14, 2009 6:30:31 PM

better more for futer so next time he does not have to buy again^^
a b ) Power supply
September 14, 2009 6:43:24 PM

there is a company near us who manufactures 2500 watt 380v power supplies for cnc's
September 14, 2009 6:45:46 PM

yeah maybe i take it and i supply my whole house with it or maybe 5high end pcs^^
a b ) Power supply
September 14, 2009 6:49:11 PM

or just use it on 6 gtx 295's
September 14, 2009 6:59:56 PM

no i am going to use it on 6 gtx395 dx11^^

i am going to take so or so 2 gtx 395 when they come out ^^
1100Watt should be enaugh^^

greets laluma22
a b ) Power supply
September 14, 2009 7:05:10 PM

1100 watt for each card yeah sounds like a plan
September 14, 2009 7:07:27 PM

jep and with i7 920 on thermalright 120Ultra at 3,5Ghz ^^ but i do not know why i am going to do at cause nobody need that
September 16, 2009 8:16:53 AM

Damn, the new Athlon II X4 are out and they seem really great for the price. I still haven't ordered the PC parts from my list, paycheck arrives only later this month. I wonder if these will be available any time soon over here (Croatia). Since I'm going to use the rig for audio production/editing, more cores is a plus.
September 16, 2009 11:59:53 AM

i know malevol3nt so if you want to take a athlon II X4 and you do own a am2+ motherboard so i would then recomend you the x4940 Be box 3,0Ghz
but if you do not own a am2 + socket and you still want to upgrade maybe you should take the x4 955 3,2 Ghz and a am3 socket mainboard with ddr3^^ so think about it and get back to me or us here some links where to buy my fried

http://ve-mil.hr/Cjenik.aspx#Grp2_Simbol=procesori&c=00...

super prices for croatia if i need something i buy it there like ddr3 even cheaper than here in germany.

Pozdrav iz njemacke.
laluma22

i7 je bolji ali tvoja odluka^^
September 16, 2009 2:20:05 PM

Damn, they're already in the local shops. And the price is very attractive. Ok so instead of the Athlon II x2, I'll rather go with the new Athlon II X4 620.

What are your thoughts on the Antec PSU ANT Truepower TP-550EC PSU (550w)? It seems to have good reviews on hardware sites. Will 550 Watt be enough? Of course, it's not a 100% efficiency PSU, it says 85% which I hope is true.
September 16, 2009 2:50:28 PM

well i can not say you if it is enaugh i think not and about the psu i ahve a tagan 1100Watt and it has a power eficienc of 89% probably you wont find a psu with 100% thats what i think cause all i know have around 85% to 93 or smt like that so if you want to b on save side take a 700W like that one
OCZ power supply GameXStream 700W, SLI-ready, crno, EPS, ATX 2.2, 4×12V (72A), 12cm blue led FAN 809kn vemil.hr^^

or also check out hgspot.hr they had some time good offers and they still have some not so much^^

greets laluma22

btw look at your graphic card how m. watts does it use on load i think schould not be more than 350 and the cpu arround 130WATT so probably and mybe 550 are enaugh but go on the safe side for further upgrades
September 16, 2009 5:12:29 PM

Malevol3nt said:
Damn, they're already in the local shops. And the price is very attractive. Ok so instead of the Athlon II x2, I'll rather go with the new Athlon II X4 620.

What are your thoughts on the Antec PSU ANT Truepower TP-550EC PSU (550w)? It seems to have good reviews on hardware sites. Will 550 Watt be enough? Of course, it's not a 100% efficiency PSU, it says 85% which I hope is true.


Yes, it will be enough, though 12V rail watts are more important than overall watts, but the Antec 550W has plenty of 12V watts.
The efficiency is the ratio between what the PSU delivers and what it draws from the wall: your 550W PSU can actually deliver the full 550W to your PC, but at 85% efficiency it means it will draw 650W from the wall, the rest gets dissipated to heat inside the PSU.
!