PSU with more than 18amps per rail?

[Skott]

Most good multi rail PSUs over 600w put out 17amps or 18amps per rail. The top end units seem to max at 18amps in fact. Other than the single rail units are there any *multi* rail PSUs that put out 19+amps per rail? I'd like to collect a list of them if there are any.

[Oklahoma Wolf]

Only ones I can think of right now are the Enhance 1kW ENP-6610G with 12v@ 35Ax2, PC P&C 1kW at 18A+18A+36A, and the Seventeam 1kW with 18A+18A+18A+26A.

[jonnyGURU]

Originally Posted by Skott

Most good multi rail PSUs over 600w put out 17amps or 18amps per rail. The top end units seem to max at 18amps in fact. Other than the single rail units are there any *multi* rail PSUs that put out 19+amps per rail? I'd like to collect a list of them if there are any.

Uhh.. There typically wouldn't be.

You split up the rails so you don't have more than 240VA coming across any one rail. If you had rails that put out more than 240VA, why bother with splitting up the rails?

THAT is why you don't see rails > 18A or 19A (sustained. Peak would be 20A, which would be your 240VA.)

[talc]

Not terribly helpful because I can't remember the model but when I was checking out power supplies recently I remember at least one that stated 22A on at least one 12V rail (probably Max).

Even some of the ones that have rated rails are not limited. In Jonny's review of the Seasonic M12-700 he pointed out that there were only two sources of the 12V despite it showing 4 rails at 18A each. I am not sure if they are all linked in drawing current or if one is limited and all the remaining amps are on the other (IE one 18 A limited going to the MB and the other 48 A being split as required through the other three rails allowing more than 18A on a rail as long as all three do not excced 48)

[GalvanizedYankee]

http://www.enermaxusa.com/ Look at the specs of the Liberty series, 400, 500 & 620W.

400 has 30A combined, 20A per rail.
500 has 32A combined, 22A per rail.
620 has 36A combined, 22A per rail.

[dBTelos]

It just depends on how the rails are split up. If you have a five rail 450W PSU, you probably aren't going to have 18A per rail.

[davidhammock200]

Originally Posted by GalvanizedYankee

http://www.enermaxusa.com/ Look at the specs of the Liberty series, 400, 500 & 620W.

400 has 30A combined, 20A per rail.
500 has 32A combined, 22A per rail.
620 has 36A combined, 22A per rail.

400 has 30A combined, 20A per rail: Max Combined +12V@30A
500 has 32A combined, 22A per rail: Max Combined +12V@34A
620 has 36A combined, 22A per rail: Max Combined +12V@36A

[Skott]

Not sure how I managed to get that thumbs down icon for the post. Could have sworn I clicked on the thumbs up

Anyway, I'm wondering if a psu like this would be better for the new G8800GTX cards that are coming out? I got this worry about not having enough amps on the 12V rails with the newer cards that will be coming out. We still dont know that the next ATI card will draw watt/amp wise. I'm trying to look ahead. Futureproffing if at all possible. I figure I'll want a G80 in the near future and maybe (although not entirely sure) maybe SLI. I would at least like to have setup for that option.

[davidhammock200]

Originally Posted by Skott

Not sure how I managed to get that thumbs down icon for the post. Could have sworn I clicked on the thumbs up

Anyway, I'm wondering if a psu like this would be better for the new G8800GTX cards that are coming out? I got this worry about not having enough amps on the 12V rails with the newer cards that will be coming out. We still dont know that the next ATI card will draw watt/amp wise. I'm trying to look ahead. Futureproffing if at all possible. I figure I'll want a G80 in the near future and maybe (although not entirely sure) maybe SLI. I would at least like to have setup for that option.

Until the new Nvidia & ATI GPU's ship, I'm recommending either single tail PSU's like the PC P&C 601W/750W or
multi-rail PSU's that behave like single rail PSU's, such as the Corsair 520W/620W.

[dBTelos]

Originally Posted by Skott

Not sure how I managed to get that thumbs down icon for the post. Could have sworn I clicked on the thumbs up

Fixed