tossing OCZ powerstream 520, preparing for R600, advice?

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02-14-2007, 01:44 AM
Daveb2012

tossing OCZ powerstream 520, preparing for R600, advice?

Just wondering what is the minimum requirements im going to need in a PSU if I want to run an OC'd R600, w/ the rest of the HW in my sig? I figured the powerstream would be really close, but I would ideally like some thing with the proper native connectors. Any sugestions I really dont want to spend over $175-200 if possible. Thanks. I've read the R600 is going to have an 8 pin PCIe2 connector, are there are PSU's with these native connectors yet, or will an adapter be fine as long as its powerful enough?:

Would either of these be sufficient?

http://www.newegg.com/Product/Produc...82E16817153039

http://www.newegg.com/Product/Produc...82E16817341002
02-14-2007, 05:41 AM
Super Nade

My suggestion, in line with any R600 based suggestion would be "wait" for the card to show up before you buy your PSU.
02-14-2007, 06:32 AM
Magnj

agreed, right now numbers are speculation...don't diss the PS it's what I have too :(
02-17-2007, 08:40 PM
[XC] DragonOrta

Quote:

Originally Posted by Magnj

agreed, right now numbers are speculation...don't diss the PS it's what I have too :(

It's what I have too. 3 of them. They run the crunching rigs, while the 560w Zeus runs my crunching/gaming/bench rig.
02-18-2007, 09:33 AM
Rattle

what about the new connector? the O650 from silverstone has them but the 01000 was tested by guru and its got ripple from hell.
I emailed Pc power and cooling about the new 8pin connector to see what they have to say.
02-22-2007, 05:18 PM
Coroner Kyle

Retail version is supposed to have 2x6 pin connectors.

http://img466.imageshack.us/img466/3049/untitledlr2.jpg
02-22-2007, 05:40 PM
jonnyGURU

Quote:

Originally Posted by Coroner Kyle

Retail version is supposed to have 2x6 pin connectors.

http://img466.imageshack.us/img466/3049/untitledlr2.jpg

That's different than the information I got from ATI last week.

Although my information has a 12/06 date on it, it's the newest they had to give me.

Although the TDP is less on the retail than the SI/OEM, it still exceeds the PCI-e specification for dual 6-pin connector cards by 15W.
02-22-2007, 05:55 PM
nn_step

Quote:

Originally Posted by jonnyGURU

That's different than the information I got from ATI last week.

Although my information has a 12/06 date on it, it's the newest they had to give me.

Although the TDP is less on the retail than the SI/OEM, it still exceeds the PCI-e specification for dual 6-pin connector cards by 15W.

hmm what is rather good news
02-22-2007, 10:09 PM
StupidityTheory

I would suggest getting this PSU if anything- http://www.newegg.com/Product/Produc...82E16817256009
02-23-2007, 04:38 AM
jonnyGURU

Quote:

Originally Posted by StupidityTheory

I would suggest getting this PSU if anything- http://www.newegg.com/Product/Produc...82E16817256009

Why? It's mediocre or "decent" at best and doesn't even have the correct 8-pin connector or enough 6-pin connectors to run through an adapter to run even one R600 card.

That's a great choice for 8800GTS SLI or X1900/1950XTX, but I wouldn't throw it out there for GTX SLI or an R600.
02-23-2007, 09:35 PM
Coroner Kyle

Quote:

Originally Posted by jonnyGURU

That's different than the information I got from ATI last week.

Although my information has a 12/06 date on it, it's the newest they had to give me.

Although the TDP is less on the retail than the SI/OEM, it still exceeds the PCI-e specification for dual 6-pin connector cards by 15W.

That's the info I found in the R600 thread about it being delayed over in the News section.

Please help me understand something jonny, so even with my PCP&C 1kw the 6 pin connectors can only supply a max of "x watts" regardless of psu wattage? Therefore, I would still need 8 pin connectors in order to deliver the needed power.

In other words no matter how powerful the psu the 6 pin connectors are limited to the PCIe 1.0 wattage specification and having the extra juice of a high wattage psu makes no difference. And this is even true with a 6-8pin adapter on a high wattage psu. It's a physical limitation of the connector?

Sorry if I repeated myself, but I'm just trying to be clear while I think and type.
02-23-2007, 10:02 PM
Super Nade

The Silverstone Olympia would be a nice purchase if you absolutely need a PSU post haste. The unit JonnyGURU tested out was defective. He got another sample which tested just like the Seventeam Server unit it is based on, i.e ripple well within ATX specs. :)
02-24-2007, 04:43 AM
jonnyGURU

Quote:

Originally Posted by Super Nade

The Silverstone Olympia would be a nice purchase if you absolutely need a PSU post haste. The unit JonnyGURU tested out was defective. He got another sample which tested just like the Seventeam Server unit it is based on, i.e ripple well within ATX specs. :)

Correct. I received a replacement OP1000 yesterday and tested it and it's ripple/noise was consistant with the SevenTeam unit I had, so I'm doing a re-write today.

Quote:

Originally Posted by Coroner Kyle

That's the info I found in the R600 thread about it being delayed over in the News section.

Please help me understand something jonny, so even with my PCP&C 1kw the 6 pin connectors can only supply a max of "x watts" regardless of psu wattage? Therefore, I would still need 8 pin connectors in order to deliver the needed power.

In other words no matter how powerful the psu the 6 pin connectors are limited to the PCIe 1.0 wattage specification and having the extra juice of a high wattage psu makes no difference. And this is even true with a 6-8pin adapter on a high wattage psu. It's a physical limitation of the connector?

Sorry if I repeated myself, but I'm just trying to be clear while I think and type.

It's a physical limitation of ANY connector because you can only put so much juice across a wire before the resistance is going to cause the voltage to drop out of spec.

THAT SAID, I personally don't think that a 6-pin connector ISN'T capable of providing enough juice to the connector without significant voltage drop. I do it all of the time with my load tester. Mind you, the wires and the connector get hot as hell, but the voltage rarely drops any amount worth mentioning. What would the long term effects be? Can't say.

Down the road "300W PCI-e cards" are going to look for communication with the PWM via the +12V sense wire on the new 8-pin connector and I think that's how the card's going to know if there's an 8-pin connected or not. I think the R600 cards are going to just look for that extra +12V or ground and that's it. Otherwise, the adapters wouldn't work because you can't just add a +12V sense wire to an exisiting connector.

So a "mod" without using two 6-pin connectors and/or an adapter would be easy. Just take an extra connector and take the connector off the end. Cut the unused wires short and plug the +12V and ground from the connector into the remaining two pins of the video card. Done.

Of course, the adapters are going to work fine because with two 6-pin connectors, you can deliver almost twice the juice and only really need another 6.25A of juice to get to the card at the absolute, balls to the wall, maximum.

And even then, I don't think the cards are going to really need THAT MUCH juice. I think the big hold up is going to be just in getting the card to recognize that you're providing juice and ground on all 8-pins of the connector.