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Thread ID: 44265 2004-04-13 22:17:00 Must... tell... someone... Growly (6) Press F1
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229086 2004-04-13 22:17:00 On the overclockers.co.nz forums, there is a thread - "6800 pictures" - ( I would give you link but it's pointless unless you are a member ).

We see that the Geforce now has two power connectors. Someone made the comment that they couldn't see how it could draw more power... I had the urge to respond, but as I've been waiting two months for my activation email... couldnt.

So i must tell you here.

Because the Power Supply distributes power in parallel circuits, the card is merely drawing more current (amps).

Am I right?? huh? huh?
Growly (6)
229087 2004-04-13 22:23:00 yes u r right i think but regardless..... spam robert6655 (5176)
229088 2004-04-13 23:20:00 > We see that the Geforce now has two power connectors .
> Someone made the comment that they couldn't see how
> it could draw more power . . .

> Because the Power Supply distributes power in
> parallel circuits, the card is merely drawing more
> current (amps) .
>
> Am I right?? huh? huh?

No, two connectors does not mean more current, it means shared current .

Perhaps the card is a little more power hungry than most and they wanted to limit voltage drop in a single lead, or perhaps they wanted to provide low-impedance feeds into two separate high-current sections of the card to limit common-mode coupling .

Or it could simply be a marketing gimmick . :|

Cheers

Billy 8-{)
Billy T (70)
229089 2004-04-13 23:59:00 how is it a shared current?

They are connected in parralel arent they?
Growly (6)
229090 2004-04-14 00:20:00 There are huge discussions on the twin molex issue that both Nvidia and AtI have implemented into their next round of cards going on at www.futuremark.com metla (154)
229091 2004-04-14 01:21:00 > how is it a shared current?
>
> They are connected in parralel arent they?

Think of it using a water analogy.

The current flow is determined by the pressure (voltage) and diameter of the pipe (load resistance).

If the pipe size is doubled (twin pipes) but the pressure remains the same, exactly the same amount of water will flow, half out od each pipe. This is not a perfect analogy because water flow and electricity flow are different phenomena, however it is close enough.

If the card requires 4 amps and it is supplied down one wire, it will not draw 8 amps if you place a second wire in parallel. What will happen is the current will be shared more or less equally as 2 amps per conductor.

Low voltage/high current situations are affected by minor variations in conductor or connector resistance, but the current will be shared more or less 50% each.

It is not easy to change the rules of physics.

Cheers

Billy 8-{)
Billy T (70)
229092 2004-04-14 01:24:00 How about a link to the thread Metla? There is nothing obvious on the page you posted.

Cheers

Billy 8-{)
Billy T (70)
229093 2004-04-14 01:27:00 Typical,its on the front page for a week and disapears the moment i post it,thats a huge forum over there.....Ill see if i can dig it up metla (154)
229094 2004-04-14 01:53:00 There are pics here (www.theinquirer.net).

Still not as impressive as the quad 9700 I saw a while ago.
bmason (508)
229095 2004-04-14 04:46:00 I understand what you mean, but what you are saying is if there are two connectors feeding power to the same part of the card. If they are separate parts within the card drawing power, then, as with any other part of the computer, it would draw more current, no?

(I mean like two light bulbs in parallel draw more current with the same voltage).

My mistake here, not very good communication... when I meant it would increase the current drawn, I meant from the power supply, for the card as a whole, combining both its parts.

BUT... if it's the same card with two connectors, couldnt you just run it off one?
Growly (6)
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