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WC'n Corporate systems...

post #1 of 57
Thread Starter 
Soooo I work at a large corporation supporting 64bit systems (redhat/xp). Of these systems about 200 of them are very high end desktop systems. They're Dell T7400's Dual 3.2GHz Xeon, 128GB of ram, 3x300GB SAS drives, about 20K a pop. We've been having an issue with them lately that Dell is aware of. They get to running a little hot and end up sounding like a freight train when the fans spin up to full speed. Unfortuanately they don't slow back down. (Personally I'm pointing the finger at the BIOS)
To make a long story short, office services is looking at building special enclosures with duct work to help vent the hot air out of ones office and improve cooling so the fans dont get spun up.

Anyway....My manager has seen my sig system and has given me a 7400 as a prototype test bed to watercool. We've already had the discussion about pro's and con's...warranty issues....etc. They still want to see what I can come up with vs. building a special enclosure in every office.

I say escalate the issue with Dell but they still want to see a solution.

I'm fairly certain I can fit everything internal, theres plenty of room in the front for a 240 after yanking the fan mount. And I do believe a 240 will be enough, we're not overclocking.

I just find it interesting that I've been asked to come up with a watercooling solution for systems in a corporate environment. Seems to me like it may just end up being one huge headache but who am I to turn down an opportunity to mix work & play
Edited by razar - 6/9/08 at 2:44pm
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post #2 of 57
Cool... best of luck with it, and do post up pics.
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post #3 of 57
What is the cause of the overheating? Is it just the CPU overheating or the entire system too hot? If it just CPU, can you just get a good top end HSF (that fits)?
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post #4 of 57
-swiftech has LGA771 blocks.
-show pics of the case plz.
post #5 of 57
Yeah, show pics
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post #6 of 57
Make sure these fit your chips..Swiftech Apogee-1U 775 ..Good pump..18W DDC.Just use 3/8" on all of it.3/8"x5/8"..Rad..Cheap Swiftech 220 or Black Ice Pro 240, they are really low performance rads though and may or may not be enough, depending on how hot your chips are running...If you want to step it up a notch the GTX 240 with 47+cfm fans is great..240 GTX.Or the Thermochill PA.3 for less then 47cfm fans...

I'll leave you my cleaning and set-up PDF to...

..Assembling your Custom Watercooling Setup

..Bleeding my WC setup..

..Poll: Push or pull configuration for Radiators

..PC Water Coolant Chemistry - Part I

...Cooling - An In-Depth Look
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post #7 of 57
Thread Starter 
I'll post some pics tomorrow.... No camera with me today.

As far as just replacing with High end HSF's, that could be an option as long as it's quiet. Honestly I'd rather do that then install water in all these desktops. But it's gotta keep the temps low even under load to keep the system fans from going into overdrive

And yes, it's CPU related, I can induce the "freight train" just by excersizing the cores.
Edited by razar - 6/9/08 at 1:50pm
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post #8 of 57
Quote:
Originally Posted by razar View Post
I'll post some pics tomorrow.... No camera with me today.

As far as just replacing with High end HSF's, that could be an option as long as it's quiet. Honestly I'd rather do that then install water in all these desktops. But it's gotta keep the temps low even under load to keep the system fans from going into overdrive

And yes, it's CPU related, I can induce the "freight train" just by excersizing the cores.
Another possiblity is replacing the case. Are you using a standard EATX motherboard? The stock Dell one isn't that well designed for airflow.

I am just providing suggestions since watercooling servers would be risky in that you are voiding a $20K warranty, increasing downtime in case of upgrades, and increase risk to mission critical systems.
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post #9 of 57
I seriously doubt that any retail waterblocks will fit. OEM's tend to use proprietary mobos. They won't mount in a standard case and won't fit standard HS's.

Other than that, watercooling isn't exactly the most economically efficient cooling method. A high end air setup will beat all but high end watercooling, which is completely unnecessary here
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post #10 of 57
Thread Starter 
They are in fact about the worst I've seen when it comes to air flow.

When it comes to standard EATX I'd say "mostly". It's a Foxconn LS-36 but when it comes to the RAM it uses extra mounts for risers so that a total of 128GB can be installed. So I think swapping cases would end up causing more problems.

I understand where your coming from DH, I had the whole warranty conversation with my manager. Oh and they're Desktop systems, not servers I know, there more powerfull then a lot of servers but they get used as individual workstations for seismic imaging applications.
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