Sparkle 550w EPS 24 PIN

[toddw]

Hello, need help before I return to Newegg. I got the sparkle 550w but it is 24 pin and 8 pin and my IS7 is 20 pin and 4 pin. I am so mad I cannot use this PS... and the adapter I got with it from Newegg... ha ha... converts 20 to 24 pin and 4 to 8 pin. It is the only PS adapter they have that I saw (the thermaltake model).

Any ideas where I can get an adapter for both 20 and 4 pin? AND why are they even having 24 and 8 pin crap anyways? To screw me up?

-- signed, spent $100 on it and cant use, sigh.

 

[Ice Czar]

its an EPS12V SSI compliant supply (Server System Infrastructure)
just what you need for a dually I have a PCP&C EPS12V

seriously you can just connect the pins and let the extras hang off the edge if there is room for that,
they are keyed the same, do have to be careful as the clips dont line up
but a spot of hotglue would work great

the 8 pin is a double set of four pins and both groups of four are keyed the same way
as far as the 24 pin, that is now the standard ATX12V v2.0 adopted that pin layout and your next board will likely employ it

offhand I dont know where to get an 8 to 4 adapter, but youd be able to make one
have to go to work, I do recall seeing one somewhere, and I'll look this afternoon\evening for one

the lable...it lists 3 or 4 +12V rails?

 

[toddw]

I did not know I could just use the first 20 pins and the 8 were duplicated. I will try that out thanks... and I will reply back with your rail answer tonight.

Yeah I got this puppy thinking it would be the be all to end all ps units and coulnt use... almost cried.... as I'm serving overseas and it takes weeks to get items not days from FedEx like you lucky bastards.

 

[Ice Czar]

here is a breakout of how the +12V rails work in an SSI compliant EPS12V

EPS12V 6.1.1 12V Power Rail Configuration

There are two types of 12V rail configurations for systems: 'Common plane' and "Split plane' processor power delivery. The 'commob plane' system has both processors powered from a single 12V rail (+12V1) from the power supply. The 'split plane' system has both processors powered by seperate 12V rails (+12V1 and +12V2) one dedicated to each processor. The system in both cases, has an additional 12V rail to power the rest of the baseboard +12V loads and dc/dc converters. +12V1, +12V2 and +12V3 should not be connected together on the baseboard to ensure that 240VA protection circuits in the power supply operate properly

Table 6: 12V Rail Summary
........................................................................................................................................................................................
Common Plane System........................................................Split Plane System
+12V1........Processors.........................................................+12V1........Processor 1
+12V2........Baseboard components other than processors.......+12V2........Processor 2
+12V3........Drives and peripherals..........................................+12V3........Baseboards and components other than processors
...........................................................................................+12V4........Drives and peripherals

which would indicate that at least a portion of the rated capacity of the total +12V output
is unavailable, however some supplies are simply compatible with a single rail, or an older compliant design with a single rail

and according to this
http://www.sparklepower.com/pdf/FSP550-60PLG.pdf

that looks like one of them, which in this case is actually good news

rail isolation is a new development the forces independent load regulation of the CPU side from peripherals that might cause too great a dynamic load change, thus enhances stability, basically its a concern in "cheaper" supplies powering a boatload of components
high quality supplies where already doing a good job of that

I suspect you will have no problems with that supply
other than the clips not lining up that is
do use a spot of hotglue