What is best silent EPS12V PSU for tyan Tomcat K8E-SLI?

kudukudu

Junior Member
Sep 7, 2005
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I am interested in pruchasing an AMD socket 939 based solution, but I am not impressed with any of the regular 939 chipsets. Nforce4 sounds way too buggy for my taste (even with firewall disabled and nvidia IDE drivers not installed) and each of the other mass market 939 chipsets on the market seem to have their share of problems (or at least the particular implementations do - e.g. while ULI 1697 and ULI 1695 may be good, it sounds like there have been a lot of reported problems with the ASrock939dualsata board).

fortunately there are stable workstation based products out on the market that use the nforce 2200 professional chipset instead of the nforce4. While the feature sets of these two chipsets from nvidia sound very similar, I read somewhere that the 2200 has 2 million extra transistors that must be doing something.

Anyway, I am interested in purchasing a Tyan tomcat K8E-SLI http://www.tyan.com/products/html/tomcatk8esli.html. This board sounds rock solid and is in the same price range as an asus A8N32-SLI.

This board requires an EPS12V compliant power supply. EPS12V is a standard used for servers developed by the Systems Service Infrastructure group: http://ssiforum.org/specifications.aspx

EPS12V power supplies have a 24 pin and an 8 pin power connector instead of a 24 pin and 4 pin connector. A lot of vendors claim to have power supplies that are both ATX and EPS12V certified (e.g. antec, seasonic), but from what I have read there are a few issues with some of these and it is better to get a dedicated EPS12V power supply like this one: Antec TPII 550 EPS12V

What is the quietest EPS12V power supply that would be suitable for the tomcat K8E-SLI?
 

kudukudu

Junior Member
Sep 7, 2005
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right now I am running on an ancient AMD athlon 800 based system (yikes). My target system will look something like the following:

tyan tomcat K8E-SLI
amd x2 3800
2 x samsung sata spinpoint 250 gb in RAID 1 configuration
Corsair 2 GB XMS3200 TwinX C2
BFG Tech GeForce? 7800 GT OC 256 MB
antec P180 case
LG GSA-4167B tri-format dvd writer black

I am planning on doing photoshop work, video editing and gaming on this box.
 

Painman

Diamond Member
Feb 27, 2000
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Enermax EG651P-VE is damn quiet, practically silent (it's what I'm using) though it lacks a PCI-E power plug. They give you an adapter to turn the 8 pin +12V into one, but you'll need that for the mobo.
 

Fullmetal Chocobo

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May 13, 2003
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Seasonic. The 600 & 500 run my server well, and the 430 runs my wife's gaming machine beautifully...
 

Howard

Lifer
Oct 14, 1999
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Originally posted by: Fullmetal Chocobo
Seasonic. The 600 & 500 run my server well, and the 430 runs my wife's gaming machine beautifully...
I don't believe the S12- series PSUs have the EPS12V connector.
 

Fullmetal Chocobo

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The Seasonic S-12 500 watt and 600 watt power supplies do. Trust me, I'm looking at them right now. Both have the 8-pin connector. One is power the mobo, and the other is powering some fans a few cold cathodes.
 

wrangler

Senior member
Nov 13, 1999
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Antec Neo HE 550
EPS12V connector standard.
Very quiet.

THe early versions had some problems with Asus but that is now resolved and they are rock solid.

I love mine.
 

kudukudu

Junior Member
Sep 7, 2005
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Some people have posted problems using the seasonic S12 series on tyan and DFI motherboards. Looks like it has a problem with the +5V rail:

http://forums.amd.com/lofiversion/index.php/t64805.html
http://forums.2cpu.com/showthread.php?s...943019a12c7292ba1900f26b&postid=562671

My impression is that power supplies that are specifically designed to be EPS12V have fewer problems than ATX 2.x power supplies that claim to be EPS12V compliant.

I realize that Seasonic S12 is probably one of the best power supplies for most socket 939 motherboards, but I am not sure if it is appropriate for EPS12V boards.

 

GalvanizedYankee

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Oct 27, 2003
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You want a EPS12V for a Tyan board.

http://www.buildtoorderservers.com/Prod...iewPrd.asp?idcategory=76&idproduct=638

I have one. At moderate load the fan is no louder than a thermally controlled 80mm Fortron. The thermistor that controlls fan voltage is on the far left of the PSU. Inorder to cool this area down and not let the thermistor ramp-up the fan, an 80mm fan at 25cfm was bonded to the left side of the intake grill. Bonded with four dot of silicone adhesive. Works. At $89 it is a very good deal.

Call the toll free number and talk to George. Give him your specs. This PSU will be more than enough. It will deliver 12V@30A@40C.

Zippy/Emacs produces server PSUs. TYAN produces server mainboards.


...Galvanized
 

Fullmetal Chocobo

Moderator<br>Distributed Computing
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May 13, 2003
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Originally posted by: kudukudu
Some people have posted problems using the seasonic S12 series on tyan and DFI motherboards. Looks like it has a problem with the +5V rail:

http://forums.amd.com/lofiversion/index.php/t64805.html
http://forums.2cpu.com/showthread.php?s...943019a12c7292ba1900f26b&postid=562671

My impression is that power supplies that are specifically designed to be EPS12V have fewer problems than ATX 2.x power supplies that claim to be EPS12V compliant.

I realize that Seasonic S12 is probably one of the best pwoer supplies for most socket 939 motherboards, but I am not sure if it is appropriate for EPS12V boards.

Hmmm. I don't know. In my personal experience, I've had less problems with the Seasonics than the Enermax PSUs that I previously had for my machine. But to each their own...
 

eplebnista

Lifer
Dec 3, 2001
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Originally posted by: GalvanizedYankee
You want a EPS12V for a Tyan board.

http://www.buildtoorderservers.com/Prod...iewPrd.asp?idcategory=76&idproduct=638

I have one. At moderate load the fan is no louder than a thermally controlled 80mm Fortron. The thermistor that controlls fan voltage is on the far left of the PSU. Inorder to cool this area down and not let the thermistor ramp-up the fan, an 80mm fan at 25cfm was bonded to the left side of the intake grill. Bonded with four dot of silicone adhesive. Works. At $89 it is a very good deal.

Call the toll free number and talk to George. Give him your specs. This PSU will be more than enough. It will deliver 12V@30A@40C.

Zippy/Emacs produces server PSUs. TYAN produces server mainboards.


...Galvanized

Thanks for the info and link! :thumbsup:
 

Painman

Diamond Member
Feb 27, 2000
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Retracting the suggestion of the Enermax - it's got plenty of power, but to tell the truth, once I switched over to water, I could hear its 92mm buzzing along. The rear 80 isn't a problem. The 92 has been swapped out. I'll give credit to Enermax for putting the fans on miniplugs, I had a suitable one I saved from a burnt out vid card cooler that I spliced onto my replacement fan, so there's no permanent modification to the PSU.