How to route for dual processors?

Malchira · 06-25-2001, 05:55 PM

Need some advice as to the best hose routing for my multiprocessor box. Is it better to do a "pass-through" from one waterblock into the other, or should I split the flow into two separate loops from the radiator?

The processors are Celeron I 533's, and I'm working with a mid-tower case.

BrianW · 06-25-2001, 10:47 PM

Well only seperate the loops if you have seperate pumps. I would just go in serial from cpu "0" to cpu"1".

My opinion.

Darkhorse · 06-26-2001, 02:48 AM

I would have thought it would be better to run 2 rads. Otherwise you will be passing heat from one CPU to the other.

gmat · 06-26-2001, 03:00 AM

Yep, maybe rad1 -> cpu1 -> rad2 -> cpu2 -> pump and so on.. if you have the real estate.

Darkhorse · 06-26-2001, 10:20 AM

Bit more exotic - you could do pump-> T -> cpu1 & cpu2 -> T -> Rad -> pump

This would give you 2 seperate loops which I think is what you suggested to begin with.

Not sure about flow rates as you'll be trying to get 2 pipes worth of water through 1 rad inlet. Might work well if you've got a bigbore rad.

dantheman · 06-27-2001, 02:09 PM

I did something like this on my cooling setup. I took the coolant from the rad and went "Y - CPU | vidcard, chipset - Y - pump- Rad" It seems to work well, and I just used a rad from a heatercore for my little honda. It has a magdrive 500 on it also to push it all.

ondaedg · 06-27-2001, 06:17 PM

clearly the best way is to split your line and run a separate line to each cpu then combine them again before the coolant heads back to the radiator,

[b4k4] · 06-27-2001, 08:17 PM

I wouldn't reccomend using that 'T' setup. when the line splits, the water's flow would be cut in half, and you would lose some pressure. then you'd have the heat of 2 procs to get rid of on one radiator. I'm personally building something like this:

Pump -> Proc A -> Rad A -> Proc B -> Rad B -> Back to pump.

Actually it's a bit different, but you get the idea.

Malchira · 06-27-2001, 11:51 PM

Thanks to everyone for all the suggestions.

Since the space I have to work with is limited, a multiple radiator system isn't really viable. What I'll probably do is try to run it as a single loop, from processor to processor, and see how the temps look. If they're lousy, I'll try to split the lines and see how the flow holds up.

If that doesn't work, well, I'll cross that bridge when I come to it.

TNT2bluz · 06-30-2001, 12:23 PM

Dual rads would suit you well if you can get compact enough units.

Having a good pump and using a Y splitter would be the simpler way to get things done.

My .02.

06-25-2001, 05:55 PM	#1
Malchira Cooling Neophyte Join Date: Jun 2001 Posts: 19	How to route for dual processors? Need some advice as to the best hose routing for my multiprocessor box. Is it better to do a "pass-through" from one waterblock into the other, or should I split the flow into two separate loops from the radiator? The processors are Celeron I 533's, and I'm working with a mid-tower case.

06-25-2001, 10:47 PM	#2
BrianW Cooling Savant Join Date: Jun 2001 Location: Desert City in California Posts: 631	Well only seperate the loops if you have seperate pumps. I would just go in serial from cpu "0" to cpu"1". My opinion. __________________ Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core \| Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose). Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently. Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)

06-27-2001, 06:17 PM	#7
ondaedg Cooling Savant Join Date: Nov 2000 Posts: 130	clearly the best way is to split your line and run a separate line to each cpu then combine them again before the coolant heads back to the radiator, __________________ ondaedg@procooling.com

06-26-2001, 02:48 AM	#3
Darkhorse Cooling Savant Join Date: Jun 2001 Location: UK Posts: 103	I would have thought it would be better to run 2 rads. Otherwise you will be passing heat from one CPU to the other.

06-26-2001, 03:00 AM	#4
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	Yep, maybe rad1 -> cpu1 -> rad2 -> cpu2 -> pump and so on.. if you have the real estate.

06-26-2001, 10:20 AM	#5
Darkhorse Cooling Savant Join Date: Jun 2001 Location: UK Posts: 103	Bit more exotic - you could do pump-> T -> cpu1 & cpu2 -> T -> Rad -> pump This would give you 2 seperate loops which I think is what you suggested to begin with. Not sure about flow rates as you'll be trying to get 2 pipes worth of water through 1 rad inlet. Might work well if you've got a bigbore rad.

06-27-2001, 02:09 PM	#6
dantheman Cooling Savant Join Date: Jun 2001 Posts: 152	I did something like this on my cooling setup. I took the coolant from the rad and went "Y - CPU \| vidcard, chipset - Y - pump- Rad" It seems to work well, and I just used a rad from a heatercore for my little honda. It has a magdrive 500 on it also to push it all.

06-27-2001, 08:17 PM	#8
[b4k4] Cooling Neophyte Join Date: Jun 2001 Posts: 18	I wouldn't reccomend using that 'T' setup. when the line splits, the water's flow would be cut in half, and you would lose some pressure. then you'd have the heat of 2 procs to get rid of on one radiator. I'm personally building something like this: Pump -> Proc A -> Rad A -> Proc B -> Rad B -> Back to pump. Actually it's a bit different, but you get the idea.

06-27-2001, 11:51 PM	#9
Malchira Cooling Neophyte Join Date: Jun 2001 Posts: 19	Thanks to everyone for all the suggestions. Since the space I have to work with is limited, a multiple radiator system isn't really viable. What I'll probably do is try to run it as a single loop, from processor to processor, and see how the temps look. If they're lousy, I'll try to split the lines and see how the flow holds up. If that doesn't work, well, I'll cross that bridge when I come to it.

06-30-2001, 12:23 PM	#10
TNT2bluz Cooling Savant Join Date: Jun 2001 Location: Secret Staging Grounds Ganymede Posts: 104	Dual rads would suit you well if you can get compact enough units. Having a good pump and using a Y splitter would be the simpler way to get things done. My .02.

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