Motherboard Power Connectors. (4-pin + 8-pin 12V)

[mr.Curmudgeon]

This isn't exactly an arcade machine question, but I know someone here will be able to help me out, and I am desperate.

I just got with the SuperMicro X6DAE-G2 Dual Xeon MB, which requires 24-pin, 8-pin (+12V) and 4-pin (+12V) connections from the power supply and I bought a PSU I thought was suppose to work with it. Even after much research.

I've got the ThermalTake PurePower 560W, it has the 24-pin, but I've come to find out it only has (1) 4-pin (+12V) power connector and no 8-pin (+12V)!! They include a 4-pin to 8-pin adapter, but then you lose the 4-pin...so I think I've got to go back to the drawing board.....unless....

Would something like this give me an additional 4-pin (+12V) connector? Since there's a 12-volt line on the HD adapters?! (So, I use the included 4-to-8-pin adapter, and then an additonal 4-pin Molex-to-4-pin power adapter to create the MB connection)

(Link)


Or could I use the native 4-pin, and convert a HD molex to an 8-pin (+12V) power cable with this?



Or this?





Couple of questions:

- Would this be safe?
- About their adapter, how does a 4-pin become and 8-pin? Can that be safe?
- Why is there a 4-to-8pin converter that uses (2) HD molex lines? Is that the safer router?
- Why me?   

It's been so long since I built a new machine, I've been out of the loop for so long, that I have no idea if these adapters are OK, or if the power spec on the 4-pin, 8-pin connectors is regulated by the power supply in some special way.



Thanks,
mrC

[dabone]

I build alot of dual xeon servers and the problem I see with the powersupply you are trying to use is the very weak +12v.

The standard chassis I use is a intel 5300 and its power supply specs can be seen here.

http://www.intel.com/design/servers/chassis/sc5300/

You Power supply has alot of +5 but the cpu connectors (Where most of your power for that rig is going)
Will be +12.

When you are dealing with machines of the type, It always pays to get approved power supply.

(Call up supermicro, they are easy to get ahold of a tech how knows his a%@ from a hole in the ground)

Most likely you will need a EPS 2.0 compliant power supply.



I built a couple of large (24 250GB drives in each, check out the case..)

http://www.buildtoorderservers.com/ProductCart/pc/viewPrd.asp?idcategory=43&idproduct=215

dual xeon servers with supermicro boards last month, and had to call in because of memory issues, Kingston swore up and down that it would work, but supermicro knew it wouldn't. They recommend the correct memory sku and all was well.

Looking at your board you are going to need the same memory.
DDRII registered ecc., must be installed in matched pairs.

and as above not all registered ecc memory is equal, because the 1gig sticks I had worked fine in Intel serverboards like the SE7520JR2 but not with the supermicro.


And btw which chassis are you mounting this in?

You know xeon board require special mounting brackets (The cpu heat sinks have screws mounted to them that screw through the mother board and connect to the chassis)

And good luck with your monster..
(and if I may ask.... Why such a beast?? It's very expensive and won't run much faster then just going with a p4 820..)


Later,
dabone

[mr.Curmudgeon]

So what do you think of this Antec? (http://www.antec.com/us/productDetails.php?ProdID=20550)

It seems to be highly recommended everywhere I look. Wish I would have bought it in the first place. With your advice I'm sorta' moving away from the adapter route, I don't want this machine to go all wonky on me in the crunch.

I build alot of dual xeon servers and the problem I see with the powersupply you are trying to use is the very weak +12v.

For reference, what would be ideal for a strong +12v?

(and if I may ask.... Why such a beast??)

NLE. High-End Video editing. I'm hoping to keep it around and upgrade to HD editing later. I was pretty much following the building guide listed by these guy (http://www.videoguys.com/DIY3.html). They recommended the Antec supply, but I thought I was smart and could get away with the ThermalTake.

It's very expensive and won't run much faster then just going with a p4 820.

Doh! Don't say that! 
Well, the dual-cores are new, not sure about stability, not sure about software compatibility. Everything I need is optimized to work with a dual-xeon system and they have proven to be ROCK SOLID in the NLE world. So for now, it seemed like the smart thing to do. Of course it'd be nice to be cutting edge, but I just don't have the kinda' luck needed to pull that off, so I paid a little more for the comfort. 

Looking at your board you are going to need the same memory.
DDRII registered ecc., must be installed in matched pairs.

I should be all set with the memory. The VideoGuys were on top of that.

And btw which chassis are you mounting this in?

The Lian-Li PC-V2000. It fits as far as I can see...haven't mounted it yet. This machine is going to be in a home/office design environment, so I couldn't deal with most ugly server chassis' out there. Should be plenty cool as well with (2) x 120mm's and Swiftech MCX604-V CPU coolers on each Xeon.

mrC

[dabone]

Here's the power supply you need.


http://www.antec.com/us/productDetails.php?ProdID=22551


I looked at your motherboard manual and you need a EPS12V supply.

As for your case, it doesn't say Nacona compatibility, so you will just have to look.


Later,
dabone

[mr.Curmudgeon]

Here's the power supply you need.


http://www.antec.com/us/productDetails.php?ProdID=22551


I looked at your motherboard manual and you need a EPS12V supply.

You are right. I linked to the wrong PSU.  /smacks head

As for your case, it doesn't say Nacona compatibility, so you will just have to look.

It has the holes needed to anchor the Nocona heatsinks, so it should be fine. Only probably I'm having right now is the threading on the stupid stand-offs from Lian-Li doesn't match the threading on the screw for the heatsinks. I've either got to find ones that do, or use the good ole' tap n' die and re-thread 'em.

It's soooo lame that Swiftech doesn't just included the proper stand-offs with their $60 heatsinks.

Thanks for all the help so far!
mrC