Dual Quad Core System-PSU Advice/Recommendations

[again]

Hi,

I have a system build in the works that has been stalled based on power supply issues. The motherboard I will be using appears to be fairly restrictive with respect to acceptable connectors: the manual states that one 24 pin, one 8 pin, and two 4 pin eps12v (an 8 pin to two 4 pin connector adapter is included so a 2x8 pin 12veps psu will also be likely acceptable) connectors are necessary. This is not an easy configuration to find...

I have a few questions after quite a bit of recent searching. Here is the build so that they might be easier to follow:

Tyan Tempest i5400PW motherboard
2 Xeon 5410 2.33 quad core processors
1 WD 500gb Caviar HDD
1 DVDR
1 Geforce 7800GT
16-32gb FBDIMM RAM (more likely the latter eventually, but 16 for now)

The above will not be used for anything graphically intensive but instead for some memory intensive applications that will be run 24/7 for likely 6 months out of the year.

The only power supplies I have found so far with the appropriate connectors are 1,000 watts or greater (aside from the Enermax Galaxy 850). At this point I am unsure if 1,000 watts is overkill or, on the other hand, necessary. If I must go with an overkill psu to get the proper connectors then so be it, but I would prefer to properly match a psu with my power needs if at all possible. I'm less concerned with price and more concerned with quality and compatibility at this point.

I would greatly appreciate any thoughts or recommendations on the above; I have had quite the time finding information thus far (and that includes multiple messages back and forth with Tyan). Please let me know if any more information might be helpful and I will do my best to provide it.

[Super Nade]

This should work based on your connector requirements:-
http://www.servercase.com/miva/miva?...Code=4U_Server

850W ATX power supply: PS/2 size but 8.75" deep (3.25" deeper than regular PS/2 PS)
Come with fan controller built-in(it is so called "thermal fan")!

Not all 4U/5U/6U/7U or PC cases can take this DEEP PS!

Dual Xeon Connector comes w/ 24-pin, 2 x 8-pin, 4-pin, and 2 x 6-pin PCI Express connectors
For Intel server boards, Tyan M/B S2720 and S2703 and
Supermicro M/B P4DP6, P4DMS-6GM,
P4DPE, P4DC6, P4DC6+, P4DCE, P4DCE+,
P4SBR, and P4SBE.


Tyan S2462 and S2468 Dual AMD MB's need different 24-pin and 8-pin connectors
For Tyan M/B S2462 and S2468, you need a "CONVERTER" for Tyan S2462 and S2468. Please go to "Power supply Accessory" or see below to find the Converter.

Another option would be this Seventeam:
http://www.servercase.com/miva/miva?...Code=4U_Server

If not contact PC Power&Cooling and have them customize their Turbocool 1200W unit to fit your needs. I can tell you that is going to be significantly more expensive than the Zippy unit I linked to.

Of all the above, I would go with Zippy.

[again]

Hi,

Thanks a lot! The Zippy looks to be exactly what I need; it's also good to know that I won't have to end up getting a PSU that is drastically oversized for my system. I suppose I would have had no other options if I could not find the proper connectors in a more appropriate size, but I'm glad I won't have to deal with that issue now.

[Per Hansson]

Wow, nice PSU, it's built like a tank!

Just make sure you have enough room for it... Here are some internal pictures of it;
http://www.bjorn3d.com/read.php?cID=985&pageID=2676

http://www.overclock3d.net/reviews.p...0p_g1_850w_psu

(Don't let the connector layout scare you, it's the "G1" version for "Gamer One")

[Super Nade]

Also look at this link for more info-->http://www.jonnyguru.com/modules.php...ry&ndns_id=476

It is rather expensive though. But, you get what you pay for. Don't expect shiny lights, super silent fans etc....it is a server unit.

Another option would be to contact JonnyGURU and see if he can custom wire the BFG-800ES for you. That would really be very nice as it is a) A good unit b) cheaper c)small standard ATX Form factor.

[again]

Hi,

After giving it some thought overnight I realized that noise might actually be a relevant issue in this case. Although the system will be set on its own to run for long periods of time it will be in the same room as my general purpose computer (at least for the near future). I know noise is somewhat subjective and some find certain units less intrusive, but just how noisy are we talking here with the Zippy units? I browsed around a little and the only reviews of the non gaming version I found seemed to make it a point to mention that it could be very loud.

[Super Nade]

Honestly, I can't say because I prefer super stable/reliable to super quiet. There are several units in the market that are more than a match to your requirements electrically. BUT, they do not have the requisite connectors you seek.

[again]

Actually, I think I agree with your sentiment. If given the choice between less noise and more system stability I would most likely choose the latter. The only reason I even gave it consideration was the number of people who brought it up in the reviews I mentioned. Then again, I have had people come into my office and talk about how loud my standard setup is while to me its basically unnoticeable. So there definitely is a bit of subjectivity with respect to tolerance. Have you had experience using the Zippy in a more up close and personal setting than a closed off server system? Some personal anecdotes would probably allay my fears completely; heck, if even one person can manage it then I'll bet it's doable .

[jonnyGURU]

I had a look at the motherboard.

So it looks like you need a PSU with an 8-pin and a 4-pin (not unusual) and a second 4-pin (unusual).

If you have an 8-pin that splits, that's not quite the same since the connector is keyed differently.