Help With 12V Rail Distribution

[Elfear]

Need some advice from you guys. I bought the Enhance ENS-0560G but I'm not sure how to distribute the 12V lines. From what I can tell, my components will be distributed like this (amp draw is approximate and I pulled it from this site and rail distribution I got from Enhance's site.):


12v1- Cpu1 (E6400@~12-15A when oced)

12v2 - Nothing

12v3- Motherboard (2-3A)
.........X1900XT (10-15A when oced)

12v4- DVD Drive (2A)
.........Sata Drive (~2.8A)
.........3x120mm (~2A combined)
.........2x80mm (~1A combined)
.........Sound Card w/ front bay (1.5A)
.........Water pump (50Z@~.75A)
.........Fan Controller (.8A)

I have an adaptor coming at the end of this week that will turn one of my sata plugs into two 4-pin molex connectors which will than be adapted into a 6-pin PCI-E connector. That will place the 2nd card on 12v2. For the time being however, I'd like to be able to run some 3D apps. I have no idea how accurate the Watt Calculator is so maybe the above requirements are way overboard. Any suggestions on where I can stick the 2nd X1900XT for now?

 

[keeleysam]

I wouldn't feel safe with all those adaptors feeding a power-hungry ATi card.

 

[dBTelos]

x1900xt using 100W of power per card, so 200W on 12V rail. I wouldn't worry about adaptors or lack of power.

 

[GalvanizedYankee]

The ST60F IS your unit. Scroll down the page and see what it says about the RoHS

compliant units. http://www.silverstonetek.com/QA-POWER.htm

Google RoHS if needed.


...Galvanized

 

[Elfear]

Originally posted by: GalvanizedYankee
The ST60F IS your unit. Scroll down the page and see what it says about the RoHS

compliant units. http://www.silverstonetek.com/QA-POWER.htm

Google RoHS if needed.


...Galvanized

Hmm. Well my PSU came in a plain cardboard box with no markings and no manual so I'm not sure if it's ROHS compliant or not. I know it's the same unit as the Silverstone ST60F but I've heard that the Silverstone unit was corrected at the end of last year while the Enhance unit remains unchanged. Based off the max amp rating on the 12Vrails of 12v1- 13A, 12v2- 18A, 12v3- 16A, and 12v4- 13A (according to Silverstone it's not 8A), I'm a little worried about having both cards on the 12v3 rail with the mobo (based off of Enhance's site) or putting the 2nd card on the 12v4 rail (based off of Silverstone's site).

The 12v4 rail seems like it has plenty of stuff on it as it is if the Watt Calculator is somewhat close.

 

[GalvanizedYankee]

12V4 can draw up to 18A but will steal from the other rails. This is what I was told by
a trusted source.

If it's RoHS there will be a green leaf on the stickied lable.


...Galvanized

 

[Elfear]

Originally posted by: GalvanizedYankee
12V4 can draw up to 18A but will steal from the other rails. This is what I was told by
a trusted source.

If it's RoHS there will be a green leaf on the stickied lable.


...Galvanized

Hmm. That just might work than to run my card on the 12v4 rail. Thanks for the info Galvanized.

 

[Elfear]

Just a quick follow up. I decided to put the 2nd X1900XT on the 12v4 rail and it's humming along quite nicely. Ran it through various 3D benchmarks and haven't seen any issues yet. I have my fans set to ~7V and one of the 120mm fans disabled so I'm not sure if the rail would hold with everything at full blast.