Search found 279 matches

by ascl
Sun Apr 25, 2010 1:30 am
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

The first and the last graph look like the water temp hasn't plateaued! Little scary, am I right in understanding that the first and last tests were fanless?
by ascl
Sun Apr 25, 2010 1:17 am
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

Use whatever barbs you like, as long as it has a G1/4 thread it will fit. I don't know what your tubing size is... but again, use what works, any G1/4 barb will fit in the rad (I think the swiftech might come with barbs from memory). Mount it anywhere, no issues at all with where you mount it (I hav...
by ascl
Sat Apr 24, 2010 4:19 pm
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

Hah, I should have known someone would call me on that... I should have said:
The difference in performance at low (<1000 rpm) fan speeds is so small amongst all the big name low FPI radiators its not worth worrying about.
:)
by ascl
Sat Apr 24, 2010 3:29 pm
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

Suggested fan speed doesn't really mean anything, XSPC's radiator is almost identical in performance to the MCR series with fans of the same speed and power. Buy whichever is cheaper. . +1 The difference in performance at low (<1000 rpm) fan speeds is so small amongst all the big names its not wort...
by ascl
Fri Apr 23, 2010 4:38 am
Forum: Watercooling
Topic: Sound signature of a WC loop
Replies: 11
Views: 5092

Water cooling is really not cheap is the main problem (unless you go ghetto, which is possible). If you are spending to WC your GPU, you may as well do the CPU too.

But... maybe an aftermarket air cooler is a better solution for you?
by ascl
Thu Apr 22, 2010 8:38 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

Hah, you are right... same thing tho, either way, it works out quieter with same cooling, or better cooling with same noise :) Either way is win!
by ascl
Thu Apr 22, 2010 8:24 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

Thanks for the links, I knew I'd read something here on 2 vs 1 fan! The forum sticky is talking about free air however, which is quite different to against a radiator. The Mungen review however... seems to answer exactly my question: 2 fans 5V 11 dBA 38°C vs 1 fan 13 dBA 38°C ie same noise, more c...
by ascl
Thu Apr 22, 2010 7:13 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

I am pretty darn certain that you are better off with say two 600 rpm fans pushing 20 cfm each than one 1200 rpm fan pushing 40 cfm. This is based on the logarithmic nature of sound. I have been wrong before, but I am pretty certain on this. You are probably right, but your numbers are off. Adding ...
by ascl
Thu Apr 22, 2010 6:24 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

But logic only gets you so far. Now you have to experiment. No one can fully predict what you will find. I bet you will pick up a few degrees of improvement though. And don't forget to experiment with whether the cooler works best in a north south configuration or an east west one. I cannot agree w...
by ascl
Thu Apr 22, 2010 6:22 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

Shrouds are great. They help reduce the noise of the fan on the radiator and they also boost the performance.... the only downfall is the extra space they take up. The 'size of a single blade' rule is great! Where did you hear that? It does seem to match Martin's findings (and also, conveniently, ab...
by ascl
Thu Apr 22, 2010 2:29 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

Yeah its minor at best. I just thought it was interesting... as I said, my post wasn't really useful as such... just a curiosity :)
by ascl
Thu Apr 22, 2010 1:25 pm
Forum: Fans and Control
Topic: Air flow vs static pressure for pushing and pulling
Replies: 25
Views: 8087

It makes no difference in whether the fan is pushing or pulling. This is not really correct. From here: http://martin.skinneelabs.com/Radiator-Fan-Orientation-And-Shroud-Testing-Review.html http://martin.skinneelabs.com/img/FanShroudTest4-25mm1350.png We can see that with this specific fan and radi...
by ascl
Thu Apr 22, 2010 1:19 pm
Forum: Watercooling
Topic: Water Wetter Additive - Three years tested.
Replies: 38
Views: 28750

I'll add my 2 cents: -Using any additive in high concentrations is dumb. Adding antifreeze reduces waters heat absorption rate. -I use pure distilled + silver. I don't like the idea of using something that may react badly to the plastics in my loop -- not to mention, distilled + silver is just very ...
by ascl
Wed Apr 21, 2010 7:02 pm
Forum: Watercooling
Topic: X2O 750 Dual 5.25â€
Replies: 22
Views: 29221

Sure, I'll definitely do that. I don't think you should be worried, you should be HAPPY! Sounds like an awesome outcome.


That said... can you tell that the settings are actually changing? Is it possible the potentiometer is busted?
by ascl
Wed Apr 21, 2010 12:53 pm
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

1. Swiftech make good bang for buck radiators, although if you are in the UK I think thermochill are cheap? Not sure.

2. Someone local will have to answer that for you.
by ascl
Wed Apr 21, 2010 12:41 pm
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

Oh no! that sucks :(
by ascl
Wed Apr 21, 2010 12:30 am
Forum: Watercooling
Topic: Sound signature of a WC loop
Replies: 11
Views: 5092

Definitely. Especially across forums.... on some of the overclocking forums... 2000 rpm fans are 'quiet'!
by ascl
Tue Apr 20, 2010 11:44 pm
Forum: Watercooling
Topic: X2O 750 Dual 5.25â€
Replies: 22
Views: 29221

Thats awesome! I agree 5 is loud and unusable (mines on 3, wish it was quieter). I will be getting the EK top soon, and will (hopefully!) achieve the same reduction in sound!
by ascl
Tue Apr 20, 2010 11:37 pm
Forum: Watercooling
Topic: Sound signature of a WC loop
Replies: 11
Views: 5092

I should have said the pump sounds like a fan, minus the rushing air! ces: When you say the radiators are high impedance... I assume you mean the air not the water right? Cause radiators tend to inhibit water flow very little. With modern radiators that have low FPI, they are not terribly restrictiv...
by ascl
Tue Apr 20, 2010 11:27 pm
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

Any corrosion inhibitor doesn't stop it completely, but only slows it. I didn't realise the CPU block was half copper! Seems an odd design.... but if its true (I don't have it, so will take your word on it!), then knock yourself out, add a copper radiator :)
by ascl
Tue Apr 20, 2010 10:59 pm
Forum: Watercooling
Topic: Sound signature of a WC loop
Replies: 11
Views: 5092

Pump sounds exactly like a fan (its essentially the same type of motor), you do not hear water flowing (at least, once its bled properly and the air bubbles are out!). Hearing water.... usually means something bad is happening! haha.

So... exactly the same noise signature IMHO.
by ascl
Tue Apr 20, 2010 7:08 pm
Forum: Watercooling
Topic: X2O 750 Dual 5.25â€
Replies: 22
Views: 29221

D5 pump: I got an EK water blocks replacement top for the MCP655, it's much quieter. http://www.silentpcreview.com/forums/viewtopic.php?t=53938 This is news to me... wonder how the pump top changes the motor noise? Not that I don't believe you (in fact I am ordering my EK top because of this), just...
by ascl
Tue Apr 20, 2010 7:05 pm
Forum: Watercooling
Topic: Reserator with extra radiator for GPU
Replies: 32
Views: 12787

Radiators dont add much restriction, the pump shouldn't perform much worse with an extra one. However, be careful about adding a copper radiator as the reservator is aluminium, and you will get galvanic corrosion.
by ascl
Sun Apr 18, 2010 1:25 pm
Forum: Fans and Control
Topic: Anyone familiar with fancontrol and pwmconfig in Linux?
Replies: 8
Views: 5275

Glad to hear your hardware is working correctly now :)


(I haven't used linux for a while, can't help with the software side of things, sorry -- good luck!).
by ascl
Sun Apr 18, 2010 3:47 am
Forum: Fans and Control
Topic: Anyone familiar with fancontrol and pwmconfig in Linux?
Replies: 8
Views: 5275

Gigabyte's bios CPU fan control works fine with voltage (ie 3 wire) controlled fans on my EP45 board.

My guess is that the bios SmartFan is still enabled which overrides the software.
by ascl
Sat Apr 17, 2010 12:36 am
Forum: Fans and Control
Topic: Fan Controller Noise issue.
Replies: 5
Views: 1848

I have the extreme version of this:
http://www.coolpc.com.au/catalog/produc ... ts_id=1286

which works very well (although the LEDs are stupidly bright... its a simple mod to remove em tho).
by ascl
Fri Apr 16, 2010 9:40 pm
Forum: Fans and Control
Topic: Fan Controller Noise issue.
Replies: 5
Views: 1848

I can't find information on it anywhere :( Although its not really surprising I guess, Deep Cool is a chinese brand that gets relabeled a bit I think. So its probably listed under another brand. Anyway, I would guess that the idea is to provide a signal to the motherboard, as some motherboards have ...
by ascl
Fri Apr 16, 2010 8:42 pm
Forum: Fans and Control
Topic: Fan Controller Noise issue.
Replies: 5
Views: 1848

How does the PWM cable connect to the controller? Based on the link there are 3x 3 pin fan headers at the back only (and the molex of course)... so I can't see where you would plug in a PWM cable? If I had to guess, I'd say its a Y cable that allows you to monitor the fan's RPM (ie the 'sensor' cabl...
by ascl
Thu Apr 15, 2010 1:44 pm
Forum: Watercooling
Topic: Experimental radiator
Replies: 5
Views: 3621

Very nice! Got more pics? internals? Whats the ambient temp?
by ascl
Wed Apr 14, 2010 3:17 pm
Forum: Watercooling
Topic: Water Cooling Heresy
Replies: 34
Views: 228969

Re: Water Cooling Heresy

Vicotnik wrote:
This was really a non-issue already back when the video was released.
This was actually my point! I didn't make it very clear sorry... but your CPU dying from getting momentarily too hot is a complete non-issue (running it at max temp for long periods of time may be a different issue however).