Big loop one pump?

RES>PUMP>RAD 1>RAD2>CPU>NB>GPU>SB>MOSFET1>MOSFET2>RES

This is a drawing of what I am planning..

http://i12.photobucket.com/albums/a2...dziac/Loop.jpg

What would be the worse case scenario if I used a single pump like this?

IMO - Nothing unless the block was a jet impingement type with a nozzle insert which might restrict your flow to the point your temps suffer a bit. SB ? SB block not really needed but either way the MCP655 you are looking at will do fine.

Yeah, there's really no point in actively cooling the southbridge other than looks. I wouldn't bother unless you have to remove the southbridge heatsink for some reason.

Try to run the rads in paralell instead - doubles the time your water uses trough the rads .

All you really need for this is one more lenght of hose, two "Y" 's and hoseclamps.

Takes some time with fiddling adjustment to adjust the rads for equal output. I use a small clamp that came with researator 1 (you can also use a zip-tie). You adjust the flow by throtthling the hose with highest flow.

Of course you will also need a couple of buckets or something to hold the outputwater where you measure the volume.

Why have a bay reservoir with this big loop?

Your best bet is to have an external reservoir just under the rads. A one gallon glass Vlassic jar would boost the cooling and be ample to take on the fluid needed for this massive loop. It will also help greatly with maintenance of the loop too.

just do a 1 loop, it shouldn't be a problem unless you have some super restrictive block like the koolance 350

Originally Posted by Fafeifa

just do a 1 loop, it shouldn't be a problem unless you have some super restrictive block like the koolance 350

Fafeifa,

Interesting, what you wrote a few days ago. Most guys seem to be saying that you should have two separate loops for the CPU and GPU. Why are you recommending just one loop?

Originally Posted by x509

Fafeifa,

Interesting, what you wrote a few days ago. Most guys seem to be saying that you should have two separate loops for the CPU and GPU. Why are you recommending just one loop?

Why not, the 655 has enough power to pump through all those components if op chose the blocks and rads carefully.

Sometimes in serial is more beneficial like u have a 3x120 and 2x220 and most people would run the big one for cpu and the 2nd one for the gpu in separate loops

If u ran them in serial you could use the unused cooling power of the bigger rad for the graphics card because some gpus are hotter than cpus so is like 2.5x120mm for cpu and 2.5x120mm for gpu and the gpu could get lower temps than if it was running by itself with the 240mm rad.

For all that you save the cost of an extra pump and the benefit that if the pump ever fails, the cpu will overheat faster and shutting down the system, while if u had the gpu pump fail within its own separate loop you run the risk of cooking your card.

Again the best temps is 2 loops no question for the cpu, but with an added gpu and extra rad i was netting 2C hotter, i think i can live with that because i would only need 1 pump. Well usually you don't have 100% cpu load and 100% gpu load unless you are benching that is another benefit for going single loop.

Also 1 loop is easier to route and looks prettier . My current plan is to run dual pumps for a single big loop.