PSU capable of running 7600GT

[timorridge]

Hi all,

Just upgraded to the below spec (if you can see it) last week and system was randonly rebooting and crashing to desktop. After thinking it was heat related (swapping fan and thermal gunk) I come to the conclusion (with aid of VGA card manual) that my PSU is not up to the job. Now having spent a few £££'s on the parts its not left me much over for a PSU.

My question is which PSU to buy, my budget is £40. Is that possible?

TIA

[staffsMike]

its all about quality in this game.

Tbh i'd spend slightly extra and get this

http://www.scan.co.uk/Products/Produ...oductID=617999

or this

http://www.scan.co.uk/Products/Produ...oductID=644038

this would probably do it though

http://www.scan.co.uk/Products/Produ...oductID=271183

lots of pretty good antecs here

http://www.overclockers.co.uk/produc...=123&subid=103

[this_is_gav]

The 400W FSP ATX-400PNF will laugh at it and should be solid too. Anything more is just overkill unless you're planning more upgrades soon. I couldn't justify the extra £10 for the 380W Seasonic, as FSP are generally very solid, if not spectacular.

[timorridge]

Thanks for that

I'm going to my local computer store tomorrow to see what they have got, two questions

Am I right in saying that I need one with DUAL +12V RAILS?
Does it have to be 'SLI READY' if Im connecting only one card to me AGP slot?

TIA

[timorridge]

Gav, 400W FSP ATX-400PNF. Doesnt sound too bad.

Not planing upgrades, and only run with one DVD ReWriter, floppy and one HDD

[Agent]

Thanks for that

I'm going to my local computer store tomorrow to see what they have got, two questions

Am I right in saying that I need one with DUAL +12V RAILS?
Does it have to be 'SLI READY' if Im connecting only one card to me AGP slot?

TIA

1) Dont. They will charge way more than Scan et all, and sell you a cheapo Q-tec "550 watt" that won't last, unless you happen to have a good local store.
Dont buy anything less than a well known, branded PSU.

2) No dual rails are not needed

3) Ignore SLI ready - Its not related to what you need if you are using AGP You do not need it.

[timorridge]

I would they are a good local store in my area anyway

Got this off their website, one of you guys mentioned ANTEC. Does it sound any good?

dcs-online.biz/shop/product_info.php/cPath/62/products_id/6978

I would prefer to buy in person, just if any problems. Thats my way

[this_is_gav]

Should do it, yeah. Not a bad price for a retailer either. I'd still head for the FSP or Seasonic personally, but at that price you'd have issues in your head not to take that Antec, given the lack of postage and things. That said, the word 'BASIQ' in the title doesn't fill me with too much confidence... cross your fingers it's not a totally stripped down PSU or a Q-tec look-alike with an Antec badge stuck on it.

[Agent]

I would they are a good local store in my area anyway

Got this off their website, one of you guys mentioned ANTEC. Does it sound any good?

dcs-online.biz/shop/product_info.php/cPath/62/products_id/6978

I would prefer to buy in person, just if any problems. Thats my way

I eat my words
Thats a good price for a shop, and a decent PSU
Go for it mate

[timorridge]

It says its only got a +12V outpout of 10A

Let me quote form the POV manual

"Geforcr graphics cards require a stable 12 volt power source. A sutible power supply can support between 20 and 30 amperes on its 12 volt lines"

Im getting confused here

What would be the total amp output if a card supplied 15A on +12v1 and 10A on +12v2

Would that be 25A?

[Pob255]

No don't get that on, my reason is:
ANTEC PSU BASIQ, 350W A/PFC RETAIL BOXED.

The basiq series have far weaker rails than the NeoHE and EarthWatts (which are the best antec models)

http://www.dcs-online.biz/shop/produ...oducts_id/7756 that's the one you want

What would be the total amp output if a card supplied 15A on +12v1 and 10A on +12v2

Would that be 25A?

It is a bit confuseing generally they cannot support full load by adding all the rails together voltage, protection will kickin before that happens on most good PSU's.
rule of thumb is 75% of rail totals.

[Agent]

No don't get that on, my reason is:
ANTEC PSU BASIQ, 350W A/PFC RETAIL BOXED.

The basiq series have far weaker rails than the NeoHE and EarthWatts (which are the best antec models)

It will still do the job though. For a basic desktop machine, it'll be ok

It is a bit confuseing generally they cannot support full load by adding all the rails together voltage, protection will kickin before that happens on most good PSU's.
rule of thumb is 75% of rail totals.

It depends on what type of PSU, and what rail.
The Basiq PSU is http://www.antec.com/specs/BP350_spe.html

Thats got 2 +12V rails, totalling about 23A.

[timorridge]

It will still do the job though. For a basic desktop machine, it'll be ok




It depends on what type of PSU, and what rail.
The Basiq PSU is http://www.antec.com/specs/BP350_spe.html

Thats got 2 +12V rails, totalling about 23A.

Ah but does this consist of the basic machine?

2GB ram
AMD 64 3700 Sandiego
CD Rom drive
160 GB HDD
Thermaltake CPU and Case fan
SB Audigy

OK, so 75% of BASIQ PSU is 17.5A

and

75% of the ANTEC 420W earthwatt is 24A, which is what the manual states is the requirement boundary.

15 pound difference but I guess its a small proce to pay if I can play on computer with less hassle

[Agent]

Yes, thats basic by todays standards.
Have a read of http://forums.hexus.net/showthread.php?t=115550
That will explain, in detail, what PC's draw on average. I've no idea where Pob got that 75% figure from to be honest Most quality PSU's can exceed their rated specs.

[amjedm]

I would also advise against the Antec Basiq. Some of the lower end Antec psus are a bit naff IMO.

The FSP/Fortron recommended above would be better.

[timorridge]

What about the Antec Earthwatts as recommended above, I like thi sbacause of the price, availability and what has been said above

I have included a list of specs form the website, obviously I will check them on the PSU

Does it sound any good and capable of powering a 7600GT (single card)

Maximum Power 430 Watts

Switches ATX Logic on-off
additional power rocker switch
115/230 Volt selector switch
Special Connectors ATX12V
3-pin Fan Sensor
SATA
Transient Response +5V, +12V and 3.3V outputs return to within 5% in less than 1ms for 20% load change.
P. G. Signal 100-500ms
Over Voltage Protection
recycle AC to reset +5V trip point < +6.5V
+3.3V trip point < +4.1V
+12V trip point < +14.4V
Leakage Current < 3.5mA @ 115VAC

DIMENSIONS

Unit Size 5.9"(W) x 3.4"(H) x 6.1"(D)
14.9cm (W)x 8.5cm (H) x 15.8cm (D)
Net Weight 5lbs.; 2.3kg

INPUT
Input Voltage 115 VAC / 230VAC
Input Frequency Range 60Hz/50Hz
Input Surge Current < 60A @ 115VAC / < 80A @ 230V
Input Current 10.0A for 115VAC
5.0A for 230VAC
Hold-up Time > 17ms at Full Load
Efficiency up to 85%
EMI/RFI FCC Class B

OUTPUT
+3.3V +5V +12V1 +12V2 +5V SB -12V
Max. Load 20A 20A 17A 16A 2.5A 0.8A
Min. Load 0.5A 0.5A 1A 1A 0A 0A
Load Reg. &#177;3% &#177;3% &#177;3% &#177;3% &#177;5% &#177;5%
Ripple V(p-p) 50mV 50mV 120mV 120mV 50mV 120mV
* Total: +12V output: 30A
* +5V and +3.3V combined output: 32.8A

ENVIRONMENTAL
Operating Temp. 10 to 50&#176;C
Operating Alt. Sea Level 10,000 ft.
Non-Operating Vibration Operating: 10-300 Hz, 0.5G, 3 axes, 1 hr. ea. axis
Non-operating: 10-300 Hz, 2.0G, 3 axes, 1 hr. ea. axis
MTBF 80,000 hrs. @ 25&#176;C
Approvals UL, TUV, CB, FCC CLASS B, CUL, C-Tick, CCC