Search found 180 matches

by SpyderCat
Fri Jun 13, 2003 4:46 am
Forum: General Gallery
Topic: My quieter pc
Replies: 5
Views: 5766

Re: My quieter pc

What's loud now? Well it's a lot quieter than before. The main culprit is the hard drive(IBM DeskStar) and the NMB exhaust fan. I order a fan speed control and grommets for the hd, hopefully that should finish the job. Hi Aris, Consider to mount the HD suspended in front of the exhaust fan, above t...
by SpyderCat
Thu Jun 12, 2003 11:25 am
Forum: Fans and Control
Topic: SLK-900u. Blow in or Out, anyone compared?
Replies: 1
Views: 1100

Re: SLK-900u. Blow in or Out, anyone compared?

It appears to me that "sucking" the cooler air in from the sides with the fan as an exhaust would be better. In that arrangement: 1. The cooler air may be drawn in where the HS is hottest, near the CPU 2. The exhaust air is exhausted almost right into my rear case fan (to be sucked out of the case)...
by SpyderCat
Sun Jun 01, 2003 2:39 pm
Forum: Fans and Control
Topic: Which 80mm casefan should I choose for this setup?
Replies: 7
Views: 2120

The info you are looking for can be found at:
http://www.comairrotron.com/Engineering/airflow.htm

Edit:
RPM is believed to vary linear with volts supplied. (Almost certain not true, but best aproximation I've seen)

i.e.:
RPM @ 12 volts = 2400 ---> RPM @ 6 volts = 1200

Han.
by SpyderCat
Sat May 31, 2003 2:14 pm
Forum: CPU Cooling
Topic: Silencing my noisy dual MP
Replies: 10
Views: 2595

Re: Silencing my noisy dual MP

I've got a dual 1800+ MP system in an antec server chassis ......... Its too noisy. ......... 6) Finally, can I duct from the rear case fans onto the CPUs directly to eliminate the two CPU fans and simultaneously get better cooling? Can these work in "suck" mode, given my current temp settings? Hi ...
by SpyderCat
Thu May 29, 2003 1:56 am
Forum: Power Supplies
Topic: PSU Input Voltage
Replies: 1
Views: 996

Re: PSU Input Voltage

Does a Power Supply perform differently at different Input Voltages? ............ Does anyone know what these differences are? Does this mean that a PSU may be lower temp for me in Australia at 220-240v than someone in the US at 110-120v ? Hi Starsky, A few day back I picked up this one: I just got...
by SpyderCat
Mon May 26, 2003 1:24 pm
Forum: The Silent Front
Topic: Silencing a floresent light...
Replies: 22
Views: 5394

Ditch all convetional lights and buy LED based spots :). There's a decent solution! No heat, no noise, low power consumption, fair amount of light, last a loooooooooong time. After quieting my HDs to a hush I noticed a strange ticking noise. I thought it might be a fan so I stopped each fan in my c...
by SpyderCat
Sat May 24, 2003 6:48 am
Forum: Power Supplies
Topic: Nexus 300W vs. Q-technology 300W
Replies: 5
Views: 1942

Because I'm not sure about the wattage consumption. If the system is using about 150W of power, the Q-technology will be quieter. And somebody was saying that Q-technology keeps the voltage levels better than Nexus. Not quite what I meant. I meant to ask: What is the problem you are trying to solve...
by SpyderCat
Sat May 24, 2003 5:36 am
Forum: Power Supplies
Topic: Nexus 300W vs. Q-technology 300W
Replies: 5
Views: 1942

Re: Nexus 300W vs. Q-technology 300W

haral wrote:I'm thinking of buying a new power supply....
Thanks for all replies. :)
Okay, you have a hard time choosing between two possible solutions.

Your PSU-fan is spinning slowly.
Your exhaust air from the PSU is cool.
Now, what is the problem you're trying to solve?
by SpyderCat
Fri May 23, 2003 2:56 pm
Forum: Power Supplies
Topic: Sealing bottom vent on SilenX 300W
Replies: 7
Views: 2383

Re: Vents serve a purpose

I'll let you know if the same setup works with my new mobo and cpu, an asus nforce2 board with an amd 2200+. Since my current rig never goes more than about 5 degrees above ambient I am hopeful that the same setup will work even with a higher output. I can predict, no even better; I can tell you it...
by SpyderCat
Fri May 23, 2003 1:11 pm
Forum: SPCR's Folding@Home
Topic: 89! -- & 60 just 3 weeks later!
Replies: 67
Views: 37417

Re: 60!

I feel an urge to upgrade something :lol: What's stopping you Chris? I have several rigs that would benefit from an upgrade :wink: Even my main rig could stand an upgrade! Just PM me for the details; or is it I can just send you the bill? An even better idea: Just send me your credit card! :lol: ED...
by SpyderCat
Wed May 21, 2003 11:54 am
Forum: Cases and Damping
Topic: Optimizing case airflow
Replies: 114
Views: 46327

The quest for the case-temp. sensor :lol:

I am going to try and re-direct some of the cool inlet air towards the sys temp sensor. The thing is, I have no idea where it is or what it looks like :( Hi Jen, Just admit it: You like fooling around with your rig :wink: Nothing to be ashamed of, your just a bit over the top :lol: You could probab...
by SpyderCat
Wed May 21, 2003 10:29 am
Forum: Fans and Control
Topic: AMD CPU-diode tested for lineairty...
Replies: 0
Views: 903

AMD CPU-diode tested for lineairty...

On ProCooling.com an article on CPU-diode testing.

Incredible results; measuring temps. through the CPU-diode was found to be very precise.
Great article !

Regards, Han
by SpyderCat
Tue May 20, 2003 1:17 pm
Forum: Cases and Damping
Topic: Optimizing case airflow
Replies: 114
Views: 46327

Would it be worth ducting hot air to an exhaust fan? Always! Any arrangement to avoid hot air from spreading through the case will help. I've just finished building a fast and quiet PC and my system is a little on the warm side. CPU (P4C-3.0Ghz w/CNPS-7000Cu) is ~55C, mobo ~41C under load (folding)...
by SpyderCat
Tue May 20, 2003 5:09 am
Forum: Cases and Damping
Topic: Optimizing case airflow
Replies: 114
Views: 46327

That does my tool-box contain? 1x Garden secateurs 1x Compass 1x Pencil .............. If I turn the monitor and speakers off, there is no difference in noise when the computer is on or off :D I have been folding for the last 2 hours and the temps are: CPU - 53C SYS - 47C HDD - 32C Judging by your ...
by SpyderCat
Tue May 20, 2003 4:11 am
Forum: Cases and Damping
Topic: Optimizing case airflow
Replies: 114
Views: 46327

I suspect hot air from the CPU-heatsink is being blown on the mobo sensor. What can I do to improve this, without adding noise :) I doubt the "Silent Motherboard Heat sink ZM-NB32J" will make a lot of difference! The only thing I can think of is making a side duct (above the CPU) and turning the CP...
by SpyderCat
Tue May 20, 2003 3:15 am
Forum: Cases and Damping
Topic: Optimizing case airflow
Replies: 114
Views: 46327

JEN wrote: The only thing that conserns me now is the SYS temp @ 51 ?
I suspect hot air from the CPU-heatsink is being blown on the mobo sensor.
by SpyderCat
Mon May 19, 2003 1:57 pm
Forum: Cases and Damping
Topic: Optimizing case airflow
Replies: 114
Views: 46327

I think it was the headsink. I now have the slk800 and the temps are stable at 66C @ 100% load 0.5Hr 66c is extreme. 66°C is pretty high, not extreme. When ASUS mobo's with the Q-fan feature start reducing the voltage fed to the CPU-fan at 60°C I wouldn't call 66°C "extreme". http://www.asus.com.tw...
by SpyderCat
Sun May 18, 2003 5:21 am
Forum: Fans and Control
Topic: Testing and Measurement Equipment
Replies: 2
Views: 1590

Re: Testing and Measurement Equipment

Yes, indeed. If you are really serious about testing and measurement, tools are available to help you find out the details you are looking for. I just read a post from someone who wants to know the actual CFM of a fan setup. Measurement of that is indeed possible, using a device known as an anemome...
by SpyderCat
Sat May 17, 2003 7:34 am
Forum: Fans and Control
Topic: Influence of restrictions/underpressure on RPM & CFM
Replies: 28
Views: 10859

OK - the cunning plan was that my house has an electricity meter that reads KWh. ...... The answer is - 120W. ..... So if my typical tower runs 120W (gross AC power), then the net must be a lot lower. It seems to be general practice that ATX psu are less efficient at the low end of their capacity, ...
by SpyderCat
Sat May 17, 2003 12:51 am
Forum: The Silent Front
Topic: what am I doing wrong. A sad story.
Replies: 16
Views: 4270

Re: what am I doing wrong.

... I stuck on a new slk-800 with a 24cfm fan. Great I thought, now I can have a quiet machine and maybe overclock a bit since the 2100+ is such a good chip. BUT NO!!! Temps havent changed at all! I am looking at the bios ahrdware monitor, mb temp is 30, cpu is 51!!! :( Hi Demian, To me it seems yo...
by SpyderCat
Fri May 16, 2003 12:16 pm
Forum: The Silent Front
Topic: Panaflows vs zalman fans - and temps
Replies: 8
Views: 2026

groovio wrote:LOL

2 12cm fans should read two 19cm fans .. not one but two as in 2 fans that measure 19cm each :P
One of us has to be suffering from dyslexia. Probably me. :cry:
by SpyderCat
Fri May 16, 2003 11:24 am
Forum: The Silent Front
Topic: Panaflows vs zalman fans - and temps
Replies: 8
Views: 2026

Re: Panaflows vs zalman fans - and temps

I just finished installing a zalman ALCU flower - damn this thing is HUGE :shock: on a P4 2.5ghz and a zalman HS on the GEForce 4200 TI Vid Card. Both are cooled by 2 19cm fans from above (attached to a zalman bracket) THe rig is quiter than before espcially wehn running the fans at the lowest spee...
by SpyderCat
Thu May 15, 2003 3:53 pm
Forum: SPCR's Folding@Home
Topic: New Folding@Home core on Monday the 19th
Replies: 27
Views: 14307

Re: New Folding@Home core on Monday the 19th

In theory you download the 3.25 beta client, delete your core.exe, and restart (ensuring -forceasm). I did this and am completely underwhelmed. My prior 10 frames averaged 10 minutes 40 seconds (project 340), I've got the "Extra SSE boost OK" message and suspect I am actually running slower. I have...
by SpyderCat
Thu May 15, 2003 12:21 pm
Forum: SPCR's Folding@Home
Topic: New Folding@Home core on Monday the 19th
Replies: 27
Views: 14307

Re: New Folding@Home core on Monday the 19th

NeilBlanchard wrote:Great -- is that with an Athlon or a P4 or both?
That's on my Athlon Thoroughbred(B), 2400+ running @ 13*166

Han
by SpyderCat
Thu May 15, 2003 12:07 pm
Forum: SPCR's Folding@Home
Topic: New Folding@Home core on Monday the 19th
Replies: 27
Views: 14307

Re: New Folding@Home core on Monday the 19th

Hello: I just noticed the (high tech!) banner ad on the F@H pages -- they are coming out with a new core program on Monday, May 19th. No info other than that. I'll feed you some more info, (Just to tease you :twisted: ) : A 24% performance increase, without the penalty of higher CPU temps. I'm runn...
by SpyderCat
Tue May 13, 2003 6:00 am
Forum: Power Supplies
Topic: Can my 170w PSU handle this load?
Replies: 7
Views: 2054

ez2remember wrote: If we take 65% efficiency, that is 110watts DC.
Where did that come from ?
Shouldn't it have read:
"If we take 65% efficiency, that is 262 watts AC" ?

Kit Lo,

When you don't run defrag, while burning a CD, while playing a game and run F@H in the background; you will be okay I think. :)
by SpyderCat
Sun May 11, 2003 2:45 am
Forum: Fans and Control
Topic: Influence of restrictions/underpressure on RPM & CFM
Replies: 28
Views: 10859

Sorry for the late posting. But i was out for the whole day. I found the intel paper on my disk. Should be available at www.computer-networking.de/~kluge/DPI130PS.pdf. I can't comment any more. Its 1h after midnight here. Hi Jojo4u, Thanks for the PDF. Please remove the last dot from your link, it ...
by SpyderCat
Sat May 10, 2003 4:54 am
Forum: Fans and Control
Topic: Influence of restrictions/underpressure on RPM & CFM
Replies: 28
Views: 10859

Hi Chris, I completely missed this part of your post yesterday. I have some doubts about 122 Watts number, but Hey, I didn't bring it up and it fits me !! :lol: :lol: .... A while back (not my exact current config) I measured the voltage across a 1 ohm resistor in the AC input (I think Mike posted t...
by SpyderCat
Sat May 10, 2003 2:47 am
Forum: Fans and Control
Topic: Influence of restrictions/underpressure on RPM & CFM
Replies: 28
Views: 10859

Hi jojo4u, I can't discus a whole lot with you, as I couldn't get to the Intel PDF you pointed to. If you happen to have a copy on your disk, mail it to me please? ... Now we have to calculate the velocity. Imagine a cylindre with 1m length and 0,0064m² foot size. In 1 second there fits 0,0064m³ in....
by SpyderCat
Fri May 09, 2003 2:28 pm
Forum: Fans and Control
Topic: Influence of restrictions/underpressure on RPM & CFM
Replies: 28
Views: 10859

Okay Chris, Here a second try: ... Basically it is clearer to calculate cfm efficiency using that equation and present it as the result, rather than (as I first did) 'assuming' cfm efficiency to 'prove' suitable results . Your Panaflo efficiency of 40% at 12V is the valid way to present. (BTW the 62...