[Sebdude]

well i decided to get a watercooling system for my pc. i started of with looking for pumps and im starting to wonder. Is it better to have more GPH (flow rate) or more "head"? sorry for posting if this is explained somewhere else i wasnt able to find it.

 

[Xavier1421]

They usually go hand in hand...but head is typically better because it indicates how well the pump can keep up its flow rate given a certain resistance.

oh yes, and btw, you may want to think of upgrading to a new mobo...that K8V will limit you ALOT.

 

[Sebdude]

Quote:

Originally Posted by Xavier1421 oh yes, and btw, you may want to think of upgrading to a new mobo...that K8V will limit you ALOT.

only problem i have had with it so far was trying to install win xp on a single sata drive. i overclocked my cpu to 2115 mhz without any probs. i had seen some negative posts about it too but sadly that was after i purchased it. thanks for the info on the pumps though.

 

[kickassclone]

Quote:

Originally Posted by Xavier1421 They usually go hand in hand...but head is typically better because it indicates how well the pump can keep up its flow rate given a certain resistance. oh yes, and btw, you may want to think of upgrading to a new mobo...that K8V will limit you ALOT.

If you take a 400 gph pump and put 2 blocks and a rad on the loop you just effectively killed the flowrate by a ton.

I would opt for a pump with a high head vs a pump with a high gph. Get the ddc from dd which has 13.5 feet head I believe and is so small you could stick it in any case.

I am doing a seperate loop for my 6800 ultra and I am going to use that pump myself.

 

[Lando95]

^^ Yes sir. The higher the head, the better. Although high gph coupled with high head is the best combo

 

[Transonic]

Quote:

Originally Posted by kickassclone Get the ddc from dd which has 13.5 feet head I believe and is so small you could stick it in any case.

you mean this one?
http://www.dangerdenstore.com/produc...&cat=23&page=1
i wanted to know what the deal was with that pump. only 92.4gph but a 13.05' head at 12v.
so you guys think this one from DD is better based on its large head? (<--LOL sorry couldn't resist)

 

[kickassclone]

t
Quote:

Originally Posted by Transonic you mean this one? http://www.dangerdenstore.com/produc...&cat=23&page=1 i wanted to know what the deal was with that pump. only 92.4gph but a 13.05' head at 12v. so you guys think this one from DD is better based on its large head? (<--LOL sorry couldn't resist)

yes that is it. oh 13.5 volts gives you 16 feet of head ooooo dang

 

[Bindusar]

Actually, the head is the height above the impeller at which the GPM is ZERO. The combination of the two hint at the torque of the motor driving the impeller. Since water is heavy, it takes force to push it up. The higher up, the more force needed since there is more potential energy in a higher column of water. (ooh...I am starting to sneeze from all the dust being kicked up...high school physics, 1987...aaaAAAACHOOOOOoooo!!)

Pond pumps are rated at different heads due to their use with waterfalls. A 3000GPM pump may only have a 500GPM @ 3ft head. Make sense? Since we typically aren't going up but more than 6-8", head ratings are not as critical as the GPH/GPM...as long as you have a nicely balanced flow channel. I hope it helps.