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Old 12-17-04, 01:10 AM   #349
TomSwift
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Exclamation Re: GeForce 6800 power supply questions

+12 12.48 Solid
+5 4.999-5.026
+3.3 3.312-3.328
Vcore 1.68-1.696

Should I change any of these?
Still no problems yet with my system tomorrow i'm going to be overclocking my A7N-8X
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Old 12-17-04, 04:24 PM   #350
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by TomSwift
+12 12.48 Solid
+5 4.999-5.026
+3.3 3.312-3.328
Vcore 1.68-1.696

Should I change any of these?
Still no problems yet with my system tomorrow i'm going to be overclocking my A7N-8X

If the little monitor lights on the back are all green, then you don't need to adjust them. However, if your trying to get just a bit more juice to the vid card to try and sqeeze out just a little more OC, you can try adjusting the +12 up just a little, once the little light turns non green, back off some.
You can also up the +5 and the +3.3 slightly to give more juice for the mobo to fead on, just watch what your doing and be careful.
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3.4 p4 /200FSB NO overclock
OCZ pc3500 performance 2 gig memory
OCZ 520 watt PSU
Asus p4c800deluxe-e motherboard
2 x 80g Sata HD's / 1 x 60g IDE / 1 x 40 g IDE
1 x DVD / 1 x lite on cdrw
7 case fans plus vantec dual fan pci card
BFG 6800 Ultra OC 456/1.28 Stock air
3.2P4(no OC)3dmark03 score :13570
http://service.futuremark.com/compare?2k3=3195131
3.2 p4 @3.472 217FSB 6800u@ 425/1.28 3Dmark03: 13738
http://service.futuremark.com/compare?2k3=3195221
WIFES PC: 3.2P4/BFG 6800GT/1 gig pc 3200
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Old 12-19-04, 12:50 PM   #351
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Talking Re: GeForce 6800 power supply questions

I know this probaly has been answered sumwhere in here...But what exactly is a rail?! and what sorta things shud i b looking out for on my PSU?!

My PSU:
http://www.bit-tech.net/review/123/

Cheers
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Old 12-19-04, 01:16 PM   #352
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by Y2BuToNz
I know this probaly has been answered sumwhere in here...But what exactly is a rail?! and what sorta things shud i b looking out for on my PSU?!

My PSU:
http://www.bit-tech.net/review/123/

Cheers
OK, first of all what does "rail" mean. Its difficult to think of another word that means exactly the same thing, but essentially it means a level of output.

So - for example - a PSU with 2 outputs, 100v and 50v would be said to have 2 rails, a 100v rail and a 50v rail.

Similarly when we talk about the 12v rail for an ATX PSU, we mean the 12v output.

Now, I don't mean to be rude, or to hurt your feelings, but that QTec power supply is a real stinker. Maybe it works OK in your machine, but if I were you I would throw it away and buy something decent. The Qtec is underpowered, unreliable, noisy and generally just really really naff. Even if it does work now, chances are it will eventually blow up and perhaps take your motherboard, CPU and ram with it. I wouldn't have one anywhere near any of my kit.

14A maximum output on the 12V rail is totally pathetic for a PSU claiming 550 watts.

By comparison, the OCZ 520W PSU has 33A on the 12V rail. So the OCZ is nearly 6 times more powerful! Yet the OCZ only claims to be 520W and the Qtec claims to be 550W. Really that is a complete disgrace.

Even the Tagan 330W PSU is 18A on the 12V line. So that is 65% more powerful than the <cough> 550W Qtec.

Just throw it away!

Chip

EDIT: Just saw your line "soon to be 6800 user". Do not expect a 6800 to work with the Qtec!

EDIT2: I just read the review you linked to above. The reviewer is clearly looking for something other than good 12V supply. How any modern PSU with only a 14A 12V line can get "two thumbs up", is completely beyond me.
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Last edited by Chippy; 12-19-04 at 01:27 PM.
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Old 12-19-04, 04:18 PM   #353
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Default Re: GeForce 6800 power supply questions

Ok cheer's thanks for info...So if i was to buy a PSU...What wud u recommend? Link to where to buy in UK plz if ya can.
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Old 12-19-04, 05:56 PM   #354
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Default Re: GeForce 6800 power supply questions

Buy an OCZ Powerstream 520(33amps on the +12 rail) or an PCZ Powerstream 420(30amps on the +12 rail).
__________________
SPECS:
Alienware
3.4 p4 /200FSB NO overclock
OCZ pc3500 performance 2 gig memory
OCZ 520 watt PSU
Asus p4c800deluxe-e motherboard
2 x 80g Sata HD's / 1 x 60g IDE / 1 x 40 g IDE
1 x DVD / 1 x lite on cdrw
7 case fans plus vantec dual fan pci card
BFG 6800 Ultra OC 456/1.28 Stock air
3.2P4(no OC)3dmark03 score :13570
http://service.futuremark.com/compare?2k3=3195131
3.2 p4 @3.472 217FSB 6800u@ 425/1.28 3Dmark03: 13738
http://service.futuremark.com/compare?2k3=3195221
WIFES PC: 3.2P4/BFG 6800GT/1 gig pc 3200
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Old 12-20-04, 03:40 AM   #355
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by kahloq
Buy an OCZ Powerstream 520(33amps on the +12 rail) or an PCZ Powerstream 420(30amps on the +12 rail).
...or an OCZ Powerstream 470 (also 33A @ 12V)

Chip
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MSI K8N Neo 2 Motherboard
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2 x Raptor 74GB's in Raid0
OCZ Powerstream 520w PSU
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Old 12-20-04, 08:18 AM   #356
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Default Re: GeForce 6800 power supply questions

How do i tell the output amps on a PSU?! Ive got a 450w here in my hands on a 12v rail but im not sure what amp bit is the output amps.
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Old 12-20-04, 08:26 AM   #357
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Question Re: GeForce 6800 power supply questions

http://img62.exs.cx/my.php?loc=img62...psu450w8ws.jpg

Crappy webcam pic as ive lost my digicam...What bit shud i b reading?

Is that a 34A on a +12Rail?
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Old 12-20-04, 08:31 AM   #358
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by Y2BuToNz
How do i tell the output amps on a PSU?! Ive got a 450w here in my hands on a 12v rail but im not sure what amp bit is the output amps.
Every PSU that's worth considering will state somewhere on the box - or on the PSU - what the maximum current is for each of the voltages. You are looking for the numbers relating to the "+12V" supply. It may give two numbers, peak and maximum. Ignore the peak number - its meaningless.

DO NOT consider any PSU that does not quote this information, irrespective of what notional "power" it may claim to be.

The OCZ Powerstream PSU's are superb, and you can get them many places in the UK. If you want to spend a bit less, the Tagan PSU's are very good too. Again, lots of places sell these as well.

www.overclockers.co.uk sell both, as well as other PSUs from big name brands like Enermax and Antec.

Chip

EDIT: Sorry I missed this post:

Quote:
Originally Posted by Y2BuToNz
http://img62.exs.cx/my.php?loc=img62...psu450w8ws.jpg

Crappy webcam pic as ive lost my digicam...What bit shud i b reading?

Is that a 34A on a +12Rail?
Yes, that's what it says. BUT be careful!!! I also note it says "All output is extend to 450W". Apart from that not making any sense, I guess what they mean is the TOTAL output across all of the rails is 450W.

And that's where it starts to smell a bit fishy. You see 34A x 12V = 408W. And at the same time, it says the maxium 5V supply is 44A. 5x44= 220W. So thats 628W on those two lines alone. That doesn't "fit" into 450W, does it. Something's not right.

What they are saying is that the PSU could *theoretically* supply 34A on the 12V, provided you don't load anything else. What you really need to know is what is the maximum 3.3V + 5V + 12V combined output, and they should tell you that.

Who makes this PSU? I'll wager its not a very reputable brand.
__________________
[COLOR=DarkRed][SIZE=1]BFG GF6800GT @ 420/1100
MSI K8N Neo 2 Motherboard
AMD A64 3200+ @ 10x240
1 GB PQI Turbo Memory 10-3-3-2.5 1T
2 x Raptor 74GB's in Raid0
OCZ Powerstream 520w PSU
[/SIZE][/COLOR]

Last edited by Chippy; 12-20-04 at 08:44 AM.
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Old 12-20-04, 08:35 AM   #359
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Default Re: GeForce 6800 power supply questions

EYE-T Electronic...Quite a good brand i erd. Just had it lying about, thought id give it a try.

Its the model EE-450 (450W)

Last edited by Y2BuToNz; 12-20-04 at 08:46 AM.
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Old 12-20-04, 09:22 AM   #360
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Default Re: GeForce 6800 power supply questions

Any better than my Q-Tec junk 550w?
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