pendragon1
Extremely [H]
- Joined
- Oct 7, 2000
- Messages
- 52,226
how could I not?
ummm... that would be why not. thats awfully cheap...$4 a piece from China
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how could I not?
ummm... that would be why not. thats awfully cheap...$4 a piece from China
ummm... that would be why not. thats awfully cheap...
The D5 also relies on the coolant to keep it cool while a DDC expels heat into the case via a heatsink and requires some kind of active cooling (e.g., air movement). A D5 is usually quieter than a DDC too. D5s usually take up more room than a DDC. I believe the D5 has a little more flexibility when it comes to mounting options, especially if you plan to hang it from fans or a radiator that are at the top of a case. Each have their own mounting advantages and disadvantages.So.. as far as pumps go... D5 is higher flow but DDC is higher pressure..
Does it really matter what the brand is for either of those designs?
I do want a PWM controlled one.
i have several of those dell fans. they still have a start point and they are not nearly as fast or push as much air as what you are comparing to. dell used a custom 4pin pwm plug/header.I really don't see why the super high rpm fans would have to be noisy or run at a lame high minimum speed. Back in the day, Dell used super high speed fans on some of their towers and when the system was running normally the fans ran at some low rpm where they were silent.
The speed control on them was also very precise / quick throughout the full rpm range.
In cases where the CPU was overheating for whatever reason they would ramp up to full speed and you could hear them from the other side of the house... Louder than any server fan I have ever heard running full tilt.
I actually have a couple of those fans around but they are only 92mm if I remember correctly and I am pretty sure they use 5 wires.
I really don't see why the super high rpm fans would have to be noisy or run at a lame high minimum speed. Back in the day, Dell used super high speed fans on some of their towers and when the system was running normally the fans ran at some low rpm where they were silent.
The speed control on them was also very precise / quick throughout the full rpm range.
In cases where the CPU was overheating for whatever reason they would ramp up to full speed and you could hear them from the other side of the house... Louder than any server fan I have ever heard running full tilt.
I actually have a couple of those fans around but they are only 92mm if I remember correctly and I am pretty sure they use 5 wires.
Did you order a used or new old stock?I have a D5 pump/reservoir on the way now.
EKWB EK-XRES 140 REVO D5 pwm
Its a cool idea, but it wont work like you think it will. Turbine effect will mean the stronger fan will do all the work, and the weaker fan will do nothing. You have to match your fans to see performance gains.How's this for an idea... 38mm for push and 25mm for pull.
Reason I am thinking this is because most of the 38mm have the secondary stationary blade thing that is supposed to help with static pressure.. and it is also giving the blade more space between it and the radiator which is a good thing.
I don't see that being helpful at all when used as puller fans.
In fact, it would be helpful if the puller fans were moved away from the radiator a bit as well. Will reduce the dead spot where the motor is and reduce turbulence and thus overall noise.
I might also experiment with doing the same thing on the push side since I will have a bit of room inside the case to mount the fans lower.
Its a cool idea, but it wont work like you think it will. Turbine effect will mean the stronger fan will do all the work, and the weaker fan will do nothing. You have to match your fans to see performance gains.
Just mount your fans in push or push/pull, and then run sufficient exhaust to get air out of the case.
Lots of people have tested this before you. You should do more reading before you commit.I disagree. Air speed through the radiator will be reduced significantly so just about any fan on the pull side will help. I also agree with a small gap if possible on the pull side (1/4 inch or so)
I also believe the second set of stationary blade would help static pressure and flow through the radiator however the types of fans that have that are normally excessively loud do not throttle down well and are generally made for high airflow with moderate pressure. Ie. They will be loud.
They are loud at full speed. I keep mine at 40% and it is silent.I ordered used for over $100 less than a new one goes for. Supposedly it was "lightly used" so if it seems like the pump is making noise upon testing I will be asking for a refund.
Not a gap really... I was talking about having a shroud that extends the fans away from the radiator but the setup would be sealed against air leaking. That way you get better airflow from the spots that are not directly below the fan blades and it should reduce noise a bit as well.and ive never heard this "gap" thing either. you dont want any gap between the fans and rad, so much so that you can buy gaskets for it...
ah, ok, that probably would work.Not a gap really... I was talking about having a shroud that extends the fans away from the radiator but the setup would be sealed against air leaking. That way you get better airflow from the spots that are not directly below the fan blades and it should reduce noise a bit as well.
Mine runs between 2,430 and 2,500 RPMs and is silent as well. It's like the sweet spot, go slower and it gets noisier, go higher and gets noisier. Running it faster doesn't make much of a difference for temps either, not enough to warrant the noise and increased power consumption at least. I do have it set if the temps get too out of control that as a fail safe it ramps up the pump speed (something I have not experienced). But otherwise, it remains pretty constant within 100 RPMs.They are loud at full speed. I keep mine at 40% and it is silent.
Lots of people have tested this before you. You should do more reading before you commit.
You can start here. https://hardforum.com/threads/diffe... is being forced,burning out the motor sooner.
Mine stays around 2800rpm. Actually surprised it has enough power to push a 360, 2x 280. gpu ands cpu block. There is a 2c difference running at 40% vs 100%. That is not worth it when everything runs cool already.Mine runs between 2,430 and 2,500 RPMs and is silent as well. It's like the sweet spot, go slower and it gets noisier, go higher and gets noisier. Running it faster doesn't make much of a difference for temps either, not enough to warrant the noise and increased power consumption at least. I do have it set if the temps get too out of control that as a fail safe it ramps up the pump speed (something I have not experienced). But otherwise, it remains pretty constant within 100 RPMs.
Lots of people have tested this before you. You should do more reading before you commit.
You can start here. https://hardforum.com/threads/different-fans-either-side-of-radiator-disadvantages.1585700/#:~:text=Basically, air is being forced,burning out the motor sooner.
and ive never heard this "gap" thing either. you dont want any gap between the fans and rad, so much so that you can buy gaskets for it...
there was no shroud mentioned and it was already explained by who i quoted.A gap created by a shroud improves performance by allowing airflow to even out. This means that instead of some air trying to move through at high speed and others at lower speed, it moves through more uniformly and has a higher average flow. It also improves heat transfer where there would normally be a dead spot at the motor hub.
I'd recommend some PrimoChill PrimoFlex Advanced LRT tubing. They sell it in clear and Amazon has it in stock.Aggghhh... Nobody has the EK Duraclear 10/16 tubing in stock for a good price. EK wants $18 for 3 meters which is plenty but they are out of stock. Everywhere else that has it in stock wants about double that.
I can get black tubing but what fun is that?
Edit.. Ended up ordering a combination of EK and XSPC fittings from Performance PCs and they also had clear tubing in stock.
I think I have everything ordered except fans now.