The Official PC building thread -3rd Edition

My favorite part about youtube is the trolling

I love to rip apart people like that. When I offer a factual arguement to their bulls*it, they always come back with insults and "my computer is faster than yours". And I'm like "no it isn't because those parts don't even physically fit together you ignorant prick."

I mean sure, I probably fuel the fires. But at least my e-peen is real and I can actually tell you what parts are in it. The most common response is "I have an i7 and an HD5800 series Dx11 card."

And I'm like "First off, it wasn't a contest for the fastest computer. Second, you misspelled half your words. Third, any idiot who can claim to have built their own computer could at least tell me the model numbers of the CPU and video card. Which you obviously don't know because you have no computer like that, nor a clue as to what you're talking about."

 

you think they would atleast say SLI 59 series instead

speaking of which, i saw an ebay lsiting for a 5770, which was in "sli" with another

 

I raged, and I wasn't even there!

 

Sam,
First off, I'm not an Electrical Engineer and never claimed to be. I should have made my meaning clearer, and I apologize for that. The motor draws 1.45A. You would have to decrease the voltage considerably below 7v to get it quiet enough to live with. I doubt very much on startup that it would run at all without cranking up the voltage to get it started again. maximum load would be at startup, so if the motor isn't turning at say 4v, it's going to get very warm. I've only seen one that had actually melted the housing and part of the blade hub because the fan froze up, but I have replaced a lot of them that had melted the insulation on the wires, because someone tried to control the fan speed with a wire wound potentiometer.

Electronic fan controllers probably wouldn't be a problem, but cheap resistance ones would be. I couldn't find a single controller that could handle 1.45A, since most 120mm fans only draw around 0.25A

BTW, that 150 CFM fan that was posted isn't the CFM champ. This one from Delta is!
http://www.newegg.com/Product/Product.aspx?Item=N82E16835213010

190 CFM, and a claimed dBA of 59! Hurts my ears just to think about something that loud! LOL!!

Russ

 

Oman7,
It's a standard 120x120x25 fan, so it should fit. here's the part number!
Scythe SY1225SL12SH 110 CFM!

 

What I meant was Russ, was that the current draw of fans isn't going to increase as the voltage is reduced. If anything, it's going to decrease. They aren't regulated devices like power supplies. However, you are correct in your concern about stationary fans at too low a voltage. With no movement, the current draw from a fan is going to be vast.

As for the fans, Delta have produced a 220CFM 120mm fan, I know that much. I think it's a 120x120x76 dual-rotor wide-frame design.
http://www.youtube.com/watch?v=SCGJ42w02EU
You can tell from the noise it produces that it's either 5 or 3 blade, not the 7 or 9 typical with PC case fans.
As for the current draw, this is one of the controllers I use. It's rated for 2.5A per channel.
http://www.newegg.ca/Product/Product.aspx?Item=N82E16811995016

 

Sam,
Yes, my bad! I should have said if it didn't start! Nice controller, BTW.

I'm going to replace the lower front Cooler Master fan with the same model Scythe I just bought. It's amazing how getting rid of one noisy fan, fo a quieter can suddenly single out the noise of another noisy fan. It's not that the fan is that loud, but the difference in noise after installing the Scythe, makes doing it a must! The Kama Bay fan hasn't made a peep, since I ordered the new one! LOL!! With the exception of the 1200 RPM Silverstone FN-121, all my future 120s will be 800 RPM. That is unless I can find a fan higher than 53 CFM that's as quiet as the FN-121.

Have you had any experience with one of these, by any chance?
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185058

Scythe says 24.00 dBA, which would make it about 2.6 dBA quieter than the Silverstone, and the silverstone is very quiet. I would like a little more exhaust, without having to resort to speeding up the 80mm Silverstone that's installed in place of the Air Duct. As it is right now, I have more air going in than I have going out. I can balance it out with the Silverstone, but it get's a bit loud doing it.

Best Regards,
Russ

 

It's a continuous process I'm afraid Russ... Once you isolate one noise you become aware of the next noisiest, and so on.
As for the 1200rpm slispstream, I only own the 1900rpm version, but the 1200 I believe got the best review at SPCR, and my 1900s at 1200 are pretty quiet (well, the ones that are on the top are, at least, since not even RealSilent fans are that quiet when screwed to the hollow mesh of the HAF's side panel)
They push a reasonable amount of air. I'm not sure it's exactly as good as the FM121, but it's still reasonably good for 1200rpm, and the corresponding noise level.

 

Sam,
It's about 15 CFM more than the FN-121, and Scythe seems to have no problem showing fans that are louder, so I may just get one!

Thanks Sam,
Russ

 

Thanks russ. It should have occurred to me, that even fans have standards that they need to follow. E.g. 120 x 120 x 25. They probably can't be off by any more than a few hundredths of an inch. IF THAT!
I'm probably gonna buy that fan. Do you think the MOBO controller will control that one better than the tuniq fan? Basically, I want a lower RPMs, when zero work load, and high RPMs at high work load. Yes, the way it should be LOL! It seems to be averaging 1500 lately. And thats not quite as silent as I'd like it...

I guess for 9$ though, I could experiment LOL! Though I should probably buy an extra. A few people have complained about them quitting. Perhaps they live in really dusty environments. The sleeve bearings are more so vulnerable to dust then ball bearings eh?

 

I won't lie (and this is quite important for Russ) the bearings in slipstreams do not tolerate dust well. Even I have to clean mine regularly. However, if you keep them tip-top, they are good fans nonetheless.

 

Oman7,
I live in a very dusty environment, where the dust is more like silt, so I was a bit skeptical of a sleeve bearing fan, but after a year, other than a few days of the fan making a clicking noise that just went away and hasn't come back since I ordered what was going to be it's replacement, I have a lot of faith in the Scythe's abilities to endure environments like this.

In your case, I think the 800 RPM 40 CFM Scythe would be your best bet. Even if you had to run it at 800 RPM all the time, it's still extremely quiet. I plan on another one to replace the lower front!
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185057

If it takes more than 40 CFM to cool it, you'll need to examine your case fans and see what can be done to improve the case airflow. When you install it, just remember to set the Mode to Auto or Voltage, as it's not a PWM fan. I would give Auto a try first, and see how it goes.

Best Regards,
Russ

 

Perhaps I'll buy an 800, a 1200, and a 1900, and see how each one does. I fear 800 may not cool as well as I'd like. If I want 4Ghz, I may need at least 1200 rpms. I wonder how loud the 1900 is. I wouldn't call it a waist of money either. I've been considering quad 120's on my side vent. So at least one of those will eventually go there. Where the other one will no doubt be used somewhere. No doubt my secondary. My secondary has a 120 hooked up to molex, and its about half as loud as a blow dryer, which is too loud!

I've actually become somewhat accustomed to the Tuniqs fan now. While its not silent, it has become bearable. But I would like to experiment. If it can be the same cooling potential at lower rpms, I'm obviously all for it

 

Sam,
I was skeptical myself as to how they would stand up in this harsh environment I live in, but aside from that clicking I heard, which I now believe was the Burner that went bad, it's run 14 to 17 hours a day for a year without problems. I've yet to have to pull the fan out and clean it, and I threw the filter away when I installed it, as it was totally impractical, and crippled the airflow so bad as to make the fan and the concept virtually worthless! My guess is that they have improved the sealing of the bearings, because if it survived here for a year, it can survive anywhere. It's the first non ball bearing fan that ever lasted this long, by a wide margin, since I started living here in So Cal, 7 years ago! The same goes for the Rifle Bearing FN-121 Silverstone on the rear. I vacuum the entire case, about twice a year now!

Best Regards,
Russ

 

Russ, you vacuum only twice a year eh. You lucky man. I should be doing it probably 12 times. That's no joke by the way. I'm talking dust haven here! LOL!

 

It's worth bearing in mind that I believe the Kama Bay fan is the same as an S-Flex, which uses the excellent S-FDB bearings. The Slipstreams do not use these.
Omega: The HAF's side vent does not take kindly to vibrations at all, be prepared for quite some noise on there. I explained earlier what it sounds like

 

Aha vibration is my enemy. I can live with bearing noise as long as it's not excessive. But noticeable vibration sets off the OCD in me. I have all of my fans and drives mounted with rubber bushings ATM. It didn't do much for the fan vibration but it worked a treat for my drives(both HDD + ODD) and helps deaden the sound overall.

 

http://www.megaupload.com/?d=KNL6U7KR

My side fan array. Microphone positioned about 1mm from the case side, on one of the two pairs (easy to tell which, as one of the pairs seems 10x louder because it's right next to the microphone, rather than beneath it)

 

Exactly estuansis. Rubber bushings are a godsend for situations like that

 

http://www.megaupload.com/?d=L8REYF1P

And another, just recorded, this time from above (actually sitting on top of the NZXT case next to it)
Speeds tested are 1300rpm, 1500rpm and 1900rpm. In order, top 2, side 2 low, side 2 high, all 6.

If you listen closely you can hear the 120Hz hum of the HDDs in the background.