View Full Version : Overvolting a RD30 makes it SCREAM!
I was installing my new Asus P5WGD2 WS Pro, E6700, & D9's last night & started playing with the variable voltage pot on my Meanwell PSU. I used to run my 50z overvolted @ 13.8v cause they were rated @ 13v. & there was quite an increase in performance over running it @ 14v. Well my Meanwell will adjust from 19.8v-28v & when I put the volts too it it was like running it in turbo mode! @ 28v it's ABSOLUTLY SCREAMING! :D I wouldn't run it @ 28v 24/7 but for benchies I bet the added flow might get some a few more Mhz. ;)
OV3RCLOCK3R
09-13-2006, 08:16 AM
Wouldn't that blow out the motor as your giving it double the power than it's rated for ?
Wouldn't that blow out the motor as your giving it double the power than it's rated for ?
Long term use would dramaticly shorten the life of the pump for sure, but for brief short-term benchies, I would do it. After all, stressing hardware is what we do here.
Jochenp
09-13-2006, 08:23 AM
I don't think you'll gain anything.
These things are beasts already, you won't gain a single mhz out of this IMO.
i thought they where ratet for 24v not 14?
LazyBum
09-13-2006, 12:06 PM
They are 24v pumps so 28v isn't hugely overvolted, but I dont know if the increased flow through the rad will dissapate enough heat to overcome the extra heat dump from the motor.
They are 24v pumps so 28v isn't hugely overvolted, but I dont know if the increased flow through the rad will dissapate enough heat to overcome the extra heat dump from the motor.
I would think a PA120.3 should have no problem dissapating the few watts the extra 4v will produce...
Sneaky
09-13-2006, 09:49 PM
i think a RD-30 already screams with a head pressure in excess of 30ft without being overvolted...
i think a RD-30 already screams with a head pressure in excess of 30ft without being overvolted...
right you are! IMO I would suspect that with just a slight overvolt one RD30 would produce more a good bit more flow than 2 Alphacool DCC-2's running in series...
Jochenp
09-14-2006, 05:48 AM
Which you need for ...
One_Hertz
09-14-2006, 09:44 AM
The extra heat you are putting into the water by overvolting will probably make your temps worse since adding more flow will do very very close to nothing for you since its already very high.
Jochenp
09-14-2006, 10:21 AM
Indeed. It's useless, you already have a lot of flow to spare, no need in overvolting your pump.
Overvoltage always comes with rediculous amounts of extra heat.
ReD.SkY
09-14-2006, 11:09 PM
4 extra volts to a $300 pump
You, OCme, Have Balls
phelan1777
09-15-2006, 06:44 AM
I know mine gets pretty warm at full V so I am definatly not running at full.
Maybe when I go 4X core, and SLI but not now, if you blow your motor there will be a lot of LOL @ U OCME :)
Dragoon42
09-15-2006, 01:08 PM
does the heat dump into the water really affect temps that much? I know it adds extra heat, but it can't really affect overall cpu temps by much can it?
Jochenp
09-16-2006, 01:40 AM
More than the extra flow would.
The best operating range for these pumps is 15-20vdc, and overvolting one will do more harm than good. It will shorten the life of the pump, and that is a given. It will add unnecessory heat to the loop, even though a PA120.3 could easly absorb & dissapate it. It iis very noisy when overvolted... it does really scream! It is very quiet, almost scilent, when undervolted. Even though flow is through the roof when overvolted, and I mean literally! You could cool a computer on the top floor of a 3 story house... temp wise there will be no added benifit.