2000W psu - Page 3

ChampionLLY · 10th Feb 2007, 01:41 AM

Quote:

Originally Posted by Chai

The purpose is the reduce the load on single cable.

hmm... i shall research more on that..
but i think most ppl have power supplies with rails more than enough to handle the load

Chai · 10th Feb 2007, 10:08 AM

Quote:

Originally Posted by ChampionLLY

hmm... i shall research more on that..
but i think most ppl have power supplies with rails more than enough to handle the load

It's not only the rails. The cable itself may not be able to handle so much load. I have overheated a cable trying to power up a peltier before, LOL!

ChampionLLY · 10th Feb 2007, 03:38 PM

Quote:

Originally Posted by Chai

It's not only the rails. The cable itself may not be able to handle so much load. I have overheated a cable trying to power up a peltier before, LOL!

u haven tell me wad's ur card?

cable overheating is extremely rare these days...

Chai · 11th Feb 2007, 11:27 AM

My card? It's not mine. Nvidia used to give that connector with the 6800 Ultra PCI-Express.

Cable overheating is rare, that's what Nvidia is trying to avoid. Dumb people can use cheap PSU and do stupid things.

Max_87 · 11th Feb 2007, 12:26 PM

There is a reason why they give that connector/add more connectors on the board. Even if the cable doesn't overheat, this might happen too:

http://forums.techarp.com/showthread...d#post 265148

I can't find the picture that I posted

ChampionLLY · 11th Feb 2007, 12:56 PM

Quote:

Originally Posted by Chai

My card? It's not mine. Nvidia used to give that connector with the 6800 Ultra PCI-Express.

Cable overheating is rare, that's what Nvidia is trying to avoid. Dumb people can use cheap PSU and do stupid things.

yeah, had very bad experience wif a cheap icute psu...
it put a chip on my hdd on fire & then it exploded by itself

since then, i NEVER bought another icute product again, not even their casing

Max_87 · 11th Feb 2007, 02:07 PM

I never liked anything from ICute... until Chai bought me some 120mm fans from ICute

The 1st thing from ICute that actually made me thumbs up

Adrian Wong · 12th Feb 2007, 06:22 PM

Quote:

Originally Posted by ChampionLLY

hmm... i shall research more on that..
but i think most ppl have power supplies with rails more than enough to handle the load

Every power cable can only withstand a certain load before it melts and start a fire. This is a bigger problem with cheap cables that are officially rated for a certain load but in truth, cannot handle the load for extended periods of time.

To play safe, it's better to split the load up by using two or more cables. If the card requires 16A of 12V power, instead of using a single cable that supports 16A, it's safer to use two cables.

This way, the load on each cable is only 8A, with a large safety margin. So, even if the cable is sub-standard in quality, 8A of current is unlikely to melt it and cause problems.

ChampionLLY · 12th Feb 2007, 07:23 PM

so u are saying that the psu will automatically balance the load between 2 rails?

Chai · 12th Feb 2007, 08:30 PM

That's another problem. How can we tell which cable is running on which rail...

So for me, the only purpose is to split the cable load.

11th Feb 2007, 11:27 AM	#24 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 28,128 Reputation: 4649 Rep Power: 82	My card? It's not mine. Nvidia used to give that connector with the 6800 Ultra PCI-Express. Cable overheating is rare, that's what Nvidia is trying to avoid. Dumb people can use cheap PSU and do stupid things. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

11th Feb 2007, 12:26 PM	#25 (permalink)
Max_87 h@x! Join Date: 11 Aug 2003 Location: the land of bandwidth cap Posts: 11,446 Reputation: 2090 Rep Power: 38	There is a reason why they give that connector/add more connectors on the board. Even if the cable doesn't overheat, this might happen too: http://forums.techarp.com/showthread...d#post 265148 I can't find the picture that I posted __________________ Max_87 Tech ARP http://www.techarp.com Dell Studio 15 / P7350 / 3GB DDR2 / Radeon HD 3450 / 250GB 7200RPM / 15" @ 1920x1200 E8600 @ 4.4GHz 1.36v / Asus P5E3 Deluxe / 2x2GB DDR3 / Radeon X1800 / Barracuda 7200.9 120GB / 7200.10 320GB x2 / Caviar SE16 WD5000AAKS / WD6400AAKS x2 / Dell 2007FP x2 / Silverstone ST56F

11th Feb 2007, 02:07 PM	#27 (permalink)
Max_87 h@x! Join Date: 11 Aug 2003 Location: the land of bandwidth cap Posts: 11,446 Reputation: 2090 Rep Power: 38	I never liked anything from ICute... until Chai bought me some 120mm fans from ICute The 1st thing from ICute that actually made me thumbs up __________________ Max_87 Tech ARP http://www.techarp.com Dell Studio 15 / P7350 / 3GB DDR2 / Radeon HD 3450 / 250GB 7200RPM / 15" @ 1920x1200 E8600 @ 4.4GHz 1.36v / Asus P5E3 Deluxe / 2x2GB DDR3 / Radeon X1800 / Barracuda 7200.9 120GB / 7200.10 320GB x2 / Caviar SE16 WD5000AAKS / WD6400AAKS x2 / Dell 2007FP x2 / Silverstone ST56F

12th Feb 2007, 08:30 PM	#30 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 28,128 Reputation: 4649 Rep Power: 82	That's another problem. How can we tell which cable is running on which rail... So for me, the only purpose is to split the cable load. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

12th Feb 2007, 07:23 PM	#29 (permalink)
ChampionLLY News Writer Join Date: 23 Apr 2006 Posts: 1,312 Reputation: 757 Rep Power: 12	so u are saying that the psu will automatically balance the load between 2 rails?