I may have to donate $100 for AT in near future

[n7]

300W / 12V = 25A

What effing PSU has 25A on a single rail?

Only the single 12V rail ones do, & they don't have enough overall for this kind of madness...

 

[nitromullet]

Originally posted by: n7
300W / 12V = 25A

What effing PSU has 25A on a single rail?

Only the single 12V rail ones do, & they don't have enough overall for this kind of madness...

That's what I was thinking...

Not only will you need a monster PSU, but one with monster rails = $$$

Most of the 1KW PSU's are the same as 550W PSU's, but with 4 rails instead of 2.

 

[Pabster]

I'm not sure about other vendors, but PC P&C is releasing a 1kW with 70A on a single 12V rail.

 

[nitromullet]

Originally posted by: Pabster
I'm not sure about other vendors, but PC P&C is releasing a 1kW with 70A on a single 12V rail.

Like I said... "$$$"

The PCP&C Silencer 750W with 60A on a single is already $200...

PSU size also starts to become an issue. Many of the longer PSU's won't fit in my case, which is one of the reasons I got the PSU I did. I would imagine that many people without E-ATX cases would have the same problem. Personally, I kind of hope that if the next gen cards do draw this much juice that ATI and NV include a seperate external power brick for the card.

 

[Keysplayr]

Guys, I would be extroadinarily surprised if G80 used that much power. X1900XT's are pushing the limits of fairly decent power supplies right now as it is!!! Now double that power consumption? I sure as heck hope not. Dual 1KW PSU's, here we come. (Well, not me).

 

[nitromullet]

http://lian-li.com/Product/Chassis/Server_Full_Tower/Classical/S_C_PC-G70.htm

dual PSU case...

 

[Conky]

They really need to work on those die shrinks.

 

[sodcha0s]

Guys, you're not thinking. It clearly says

Support optional 225 W and 300 W graphics requirements for add-in cards and systems.

This can mean many things, but it most likely means the entire PCI Express bus, not JUST for one single video card. I'll bet we never see a video card consume 250w of power, and if there ever is one surely it would have it's own power brick. Relax!

Forgot to mention that they are most likely overengineering this spec so they'll never have power requirement problems in the future.

 

[bluemax]

Originally posted by: Zebo
noise. Find me an even close to quiet 700W PSU..an even close to quiet cooler which can dissipate 250W coming off a gaphics card.. 80db computer aint my idea of a good time.

:thumbsup:

 

[Zap]

Originally posted by: lopri
I wrote in some other thread that if the next generation GPUs from ATI and NV will consume up to 250W power, as rumoured by the Inq., I'd donate $100 to AT.

Don't donate money to AT. I'm sure AT makes enough from advertising to be rolling in that green stuff. Donate it to someone/place that needs it more such as some struggling web site, or the United Way, or some other charity.

If you really are serious about putting your money where your mouth is (wherever it ends up), kudos! :thumbsup:

 

[Zebo]

Originally posted by: n7
300W / 12V = 25A

What effing PSU has 25A on a single rail?

Only the single 12V rail ones do, & they don't have enough overall for this kind of madness...

I don't think it works that way.. Rails can shift right?

For example say you got 2 x 16A PSU and the first mobo rail is only using 10A: is'nt 22A avail now to SLI/PCIe rail?

I'm going to pm jonnyPSUguru about this but I remember reading it awile back at SPCR..

 

[n7]

Originally posted by: Zebo

Originally posted by: n7
300W / 12V = 25A

What effing PSU has 25A on a single rail?

Only the single 12V rail ones do, & they don't have enough overall for this kind of madness...

I don't think it works that way.. Rails can shift right?

For example say you got 2 x 16A PSU and the first mobo rail is only using 10A: is'nt 22A avail now to SLI/PCIe rail?

I'm going to pm jonnyPSUguru about this but I remember reading it awile back at SPCR..

I'd love if i was wrong on that, as that would be a great feature.

Somehow i don't think that's the case though.

However, if it is, woohoo!

 

[jiffylube1024]

Originally posted by: ebeattie
wow, not lookin good man. if you caught me a year ago i woulda had no problems with this, but Im planning on getting a new case with 2 120mm case fans, just got some new 80mm Stealths to replace my case tornados, and Im looking at an auto temp 120mm Vantec for my CPU. Tornados do move air, but Im tired of the noise and having to adjuast them EVERY time I go from gaming to surfing . Im cool with some noise; not a silent PC guy at all, but GD 5 Tornados going for BF2.... a year has been long enough and thats been WITH TWO Nexus NXP-305s! I cant even FATHOM a 300W card, let alone a friggen SLI setup with em and not going deaf.

They are gonna have to do something quick, like maybe a self contained watercooling unit per card or something. But 300W a card? not a chance.

How could you even think of putting Tornados into a desktop case!? They're like 6500 rpms full blast!

I just built a server with 2 of them in there, and the noise is unbearably loud; I wore earplugs when I configured the server!!!

What did you have them turned down to? Jesus, 5 Tornados in a case? That would be deafining!

 

[lyssword]

that vid card will b like the hummer of cars in terms of fuel efficiency and ego-stroking, kinda like this: http://www.youtube.com/watch?v=9C8ScBFAKBQ

 

[Zebo]

Originally posted by: n7

Originally posted by: Zebo

Originally posted by: n7
300W / 12V = 25A

What effing PSU has 25A on a single rail?

Only the single 12V rail ones do, & they don't have enough overall for this kind of madness...

I don't think it works that way.. Rails can shift right?

For example say you got 2 x 16A PSU and the first mobo rail is only using 10A: is'nt 22A avail now to SLI/PCIe rail?

I'm going to pm jonnyPSUguru about this but I remember reading it awile back at SPCR..

I'd love if i was wrong on that, as that would be a great feature.

Somehow i don't think that's the case though.

However, if it is, woohoo!

No it's me whos was wrong. From jonnyG

No.

If the PSU has the rail limiters (OCP) on them, you can not exceed that rail's max amperage capability.

So if the PSU has 20 x 2, but 300W on the combined, that means you can only put 20 on each 12V rail, and not exceed 25A on both.

 

[bobsmith1492]

Those lil' skinny wires on standard PSU leads couldn't cary more than prolly 10A each... you'd need freakin' 5+ 12V lines going to your video card... they're overstating things, as usual.

Not to mention, 300W of heat is a looooooooottttttttttttt of energy to be dissipating from such a small area. Think about the size of the heatsinks on processors that got up to what, maybe 150W OCed for the P4s? Now, think double that... on a video card? Maybe not double since they get a lot hotter, but the size of a processor sink for sure or new die construction allowing for 100+ degrees celsius would be in order.

 

[Nightmare225]

Originally posted by: josh6079
Doesn't the OCZ GameXstream 700W have a 120mm fan on it? Wouldn't that be quiet?

I use one, and yes, it is extremely quiet.