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Loubushuk

Who has used dual PSU's in a Stacker?

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rijko    0
Thanks for that. I was pondering about using two low wattage fanless PSU's from A**** or good old CM if they make them. I wonder what the reasoning behind CM making provisions in the CMStacker Case for two PSU's was, and also originally supplying 20-pin "Y" cables and then later 24-Pin "Y" cables. Perhaps someone at CM can say which PSU's they had in mind.

i use 2 A**** 500W PSUs - connected using the CM 24 pin y-cable.

IMHO it's great ! No dummy load needed, great power efficiency.

CM made their case modular this way : in my case i exceeded the power the 1st PSU could deliver - and CM made it possible to use a 2nd PSU.

Good reasoning, i think.

Only downside i see is cable management - but that's a choice you can make.

A**** is hard to beat - quiet, stable, great efficiency, good price.

But now CM has the IGreen 600W : and it's (from what i have found in comparison) a serious contender/alternative.

And the pricing is better than A****.

So i am considering replacing mine with the CM IGreen 600.

It's tested very well all around.

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i think two psu's would be unnecessary for most even upper end systems. I think its more intended for those with watercooling and lighting systems. otherwise even for a next gen g80 quad sli system you'd want a single high wattage psu.

why do you think you need two?

but i think the dualpsu connector that came with the stacker is a very sloppy way to do it. It would be more effective to open up the second psu and do some rewiring. cut the purple wire on the first psu and put a connector on it for the second psu or just solder them together. though I guess some may fear opening psu's and cutting wires (cmon who needs warranties? :P )

*note* I'll be using dual psu's in my mod but I'll have dual mobos :twisted:

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rijko    0
i think two psu's would be unnecessary for most even upper end systems. why do you think you need two?

Well, the first 500W A**** Phantom gave up when i put the system

together....

My system :

CM Stacker STC-T01

Asus A8N5X mobo ( with active northbridge cooling replaced by Zalman passive coolblock)

AMD Opteron 165 dual core

Zalman Cu 7700 CPU cooler

3Ware sata xor 12 port raid controller

12 WD 4000 YR (Raid Edition 2) 400GB HDDs (RAID5)

2 WD HDDs (mirrored) as system disk

4GB Kingston 400Mhz memory

GF5200 passively cooled

PSU : 2 x A**** Phantom 500

When i built this system i installed mobo, cpu + cooler, memory, video card & NIC, & 2 system disks. 1 PSU.

I plugged in the 3Ware controller and added the first hdd.

Label portnumber on the cable, power down ; next !

After hdd #8 the PSU tried to boot the system and shut down.

Remove 1 disk... boot is ok.

I had hoped the "staggered spinup" of the 3Ware card would make it possible to use just 1 PSU (staggered spinup is meant specifically to save the PSU from high peak load on startup) .... but no go :-(

So i did need a 2nd PSU....

Too bad but still okay : i intend to add a 2nd raid controller & 4 or 5 disks shortly - so instead of powering just 4 HDDs the 2nd PSU will have to earn it's money :-))

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knud    129

Wow, I thought this topic was dead months ago :wink:

Rijko, you have a kick-:) system, but a lousy videocard man! Did you ran out of money? :P

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rijko    0
Wow, I thought this topic was dead months ago :wink:

Rijko, you have a kick-:) system, but a lousy videocard man! Did you ran out of money? :P

haha, i remember someone saying something like "i swim upstream where others go downstream" or something to that effect....

This is my server - and i want it to be stable, lotsa diskspace and functionality : gaming is not for my server...

Add to that i want it to be quiet.. and the fact i operate my server using terminal services....

All that made me choose to replace the northbridge 'screamer' fan with something passive so it won't break or make loud noise all the time ;

and the same goes for the video card... no fan so it cannot break down or make noise and still this card is 'overpowered' to provide terminal services quality screen output.

Yeah, i agree in gamers eyes it's a lousy videocard - but it's a good choice for the job it is supposed to do price/performance wise .. that's why i am probably swimming upstream compared to the folk here :wink:

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rijko    0

btw i see you've got a kick-:) system too, a bit like mine !

It will most likely outperform my system though :-/

I chose the A8N-E too 'cause of the better chipset and sata2 support.. but the guy i ordered my stuff delivered the A8N5X... and i did not want to wait for the A8N-E because the difference was not really important to me : sata 2 would be serving the system HDDs and i do not need the max performance for that.

I looked at the AMD x2 3800 too : approx. same price & a better choice for gaming i think ; but only half the cache per cpu.

And for fileserver/webserver/SQL etc i need the cache..

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knud    129

Thanks!

But your system would be better, except gaming, 4gb of ram and a lot of diskspace, how much in total?

(I thought I saw 12hdds for raid?)

And a opteron cpu is better than my 3800x2, I suppose.

I love my A8N-E too, great for overclocking. I don't think my current OC is the max :P

I changed the little fan for a passive cooling solution, much better! 8)

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rijko    0

yes, correct - 12 HDDs, 400 GB each.

I divided the them in 2 raid5 sets of 6 disks.

That makes for 2 volumes of 1,6 TB so 3.2 TB total.

Still i need more :-)

Haha, the passive coolblock makes a big difference in noise doesn't it ?

And it looks better too !

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