Search found 169 matches

by hvengel
Sat Aug 28, 2004 11:48 am
Forum: Power Supplies
Topic: 200W passive power source
Replies: 11
Views: 4116

Yes this route is not cheap if you need more than about 150 watts. Buying a new RS-35A and the dc to dc supply plus the hardware to wire it up will run you a little over $200 ($150 for the RS-35A and $50 for the dc to dc unit). If you don't feel too unconfortable buying used you should be able to ge...
by hvengel
Sat Aug 28, 2004 11:25 am
Forum: CPU Cooling
Topic: Help, are my Silent PC days over?
Replies: 14
Views: 6232

Many MB BIOs have a setting to prevent the machine from booting if there is no rpm signal for the CPU fan. So check the BIOs as you may be able to turn this off. There are Arctic Cooling VGA-silencer versions for the NV 6800 that have just been announced. There are a number of folks that post on thi...
by hvengel
Sat Aug 28, 2004 11:08 am
Forum: Silent Storage
Topic: Cutting sorbothane?
Replies: 10
Views: 8662

patord wrote "I have some commerial paper cutters at my office used to trim stacks of print outs for manuals. Put the sorbothane in, pull the handle and typically cuts clean and straight in one pass. Though it does require some force on the pull down. Course how many of us have such a tool like this...
by hvengel
Fri Aug 27, 2004 3:41 pm
Forum: Power Supplies
Topic: 200W passive power source
Replies: 11
Views: 4116

They also have this one http://www.mini-box.com/pw-200.htm which is for ATX mother boards. No need for an adapter. The units are rated for 200 watts continous and about 300 peak. This is enough to handle all but the most power hungery machines. For a 12 volt supply I would suggest the Astron RS-35A ...
by hvengel
Thu Aug 26, 2004 2:45 pm
Forum: Fans and Control
Topic: Your opinion about fan speed algorithm plugin for speedfan?
Replies: 9
Views: 14215

MBM does not have fan controls. Besides I think the the author has said he will stop supporting it soon. Fancontrol are you the person who wrote the pwmconfig and fanspeed konsole scripts for lm-sensors? Or did you do something else with this in Linux? The differenece between the open source Linux w...
by hvengel
Thu Aug 26, 2004 2:31 pm
Forum: Power Supplies
Topic: DC Wall Supply?
Replies: 22
Views: 11009

DC to DC conversion where volts in < volts out requires an expensive DC to AC to DC conversion. In the case where volts in > volts out does not. By the way with AC a voltage change up or down is not costly since it can be done with a transformer and is close to a nearly perfect lossless conversion. ...
by hvengel
Thu Aug 26, 2004 1:37 pm
Forum: Fans and Control
Topic: linux: controlling fanspeed without 3pin fans.
Replies: 5
Views: 3323

ljmeijer have you tried anything with this yet? Does it work?
by hvengel
Thu Aug 26, 2004 12:43 pm
Forum: Power Supplies
Topic: Experience with brick PSU for ATX board?
Replies: 15
Views: 10004

Somebody the solutions I listed will have 200 to 300 watts continous capacity depending on which unit you select and have peak capacities that are significantly higher (400 to 500 watts). The real limitation is the internal to the PC DC to DC unit. The one the msde posted a link to is a 200 watt uni...
by hvengel
Thu Aug 26, 2004 10:49 am
Forum: Power Supplies
Topic: Experience with brick PSU for ATX board?
Replies: 15
Views: 10004

"Brick" power supplies of various sizes are used for powering ham radios. Many of these are fanless and all are very high quality. These can be had as large as 57 amps (786 watts at 13.8 volts) continous. Most of the larger units have fans but many of the small and medium sized ones do not. They are...
by hvengel
Wed Aug 18, 2004 5:18 pm
Forum: Cases and Damping
Topic: visual airflow?
Replies: 34
Views: 14270

The "boiling smoke" from dry ice is made by putting dry ice in water. It is water vapor so I don't think this is a good idea.
by hvengel
Wed Aug 18, 2004 4:09 pm
Forum: Fans and Control
Topic: linux: controlling fanspeed without 3pin fans.
Replies: 5
Views: 3323

I had a quick look at pwmconfig and it is a bash script that is about 616 lines long. It appears that it first checks to see what sensors you have, if these have pwms and if any have rpm readings. If this is OK it then checks to see if those with rpm readings will keep working with the pwm set to it...
by hvengel
Tue Aug 17, 2004 12:24 pm
Forum: Fans and Control
Topic: linux: controlling fanspeed without 3pin fans.
Replies: 5
Views: 3323

I didn't even know that lm-sensors had the ability to control a pwm. But I checked on my machine and sure enough pwmconfig is in the /usr/sbin directory (lm-sensors 2.8.3). When I ran it on my machine it says I do not have any "pwm sensors". Which is correct. So I guess it's true that you learn some...
by hvengel
Mon Aug 16, 2004 7:03 pm
Forum: The Silent Front
Topic: Question about decibel-meters
Replies: 12
Views: 4516

About the most you can hope for is to be able to get an idea of how much of a difference there is between the noise level before and after a change to the system. So you would place the meter close enough to get a solid reading on your meter above the background level. Then record that reading. Then...
by hvengel
Sun Aug 15, 2004 3:41 pm
Forum: Fans and Control
Topic: Temperature controlled fan
Replies: 3
Views: 1697

Make sure the fan is a 12V DC fan before replacing it. From what I know about higher powered audio amps I would guess that it is a 120V AC unit. After all why would someone design one of these units to use a 12V DC fan when it is very likely that there is nothing else in the unit that needs 12V DC. ...
by hvengel
Wed Aug 11, 2004 2:54 pm
Forum: System Advice / Troubleshooting
Topic: Intel® Extended Memory 64 Technology - Intel vs AMD 64-bit
Replies: 9
Views: 8449

The Itanium is based on and derived from the architecture used in the HP server machines. At the time HP designed this architecture (mid 1980s) it was called the Sprectrum architecture. It is now called PA-RISC. The Itanium is a RISC machine and the Itanium "emulates" i86 instructions by executing t...
by hvengel
Wed Aug 11, 2004 2:21 pm
Forum: Fans and Control
Topic: Best Method of Opening up "closed corners" of diff
Replies: 5
Views: 2864

The Dremal tool is the moder friend. I would think that a cut off wheel would make short work of this.
by hvengel
Wed Aug 11, 2004 2:19 pm
Forum: CPU Cooling
Topic: thermaltake cl-p0019 FANLESS103
Replies: 8
Views: 3639

I don't think that you can really think of any of these as being fanless. Sure there is no fan attached to the HS. But they still need air flow through the HS fins to work correctly. The air flow is supplied by the case or PSU fan instead of a fan dirrectly attached to the HS. If you have the correc...
by hvengel
Mon Aug 09, 2004 4:05 pm
Forum: Fans and Control
Topic: Information about Q-Fan 2
Replies: 3
Views: 7747

I am also interested. I know that Q-fan has low/high speed settings only (8/12 volts non-adjustable) and it appears that on the K8V MBs it does not allow you to set the trigger temp. It was also only for the CPU fan. So this was a very limited facility. But it is part of the BIOS so it will work wit...
by hvengel
Sun Aug 08, 2004 11:09 am
Forum: Power Supplies
Topic: We need a new type of Power Supply!!!!
Replies: 19
Views: 7943

This thread make me think of an option I had not even considered before for putting together a totaly silent power supply. If the supply is external to the PC than there are no size constrains (with in reason). So why not look at other technologies to see what other options exist? Being a ham radio ...
by hvengel
Sat Aug 07, 2004 12:12 pm
Forum: CPU Cooling
Topic: thermaltake cl-p0019 FANLESS103
Replies: 8
Views: 3639

That is totaly correct. One of the reviews for this HS said that most P4 MBs will have this HS facing the rear. Which is the correct way to mount it if you have an exhaust fan in that location. But that most K8 MBs will have the HS fins next to the PSU or at least facing up. The main factors to cons...
by hvengel
Sat Aug 07, 2004 10:49 am
Forum: CPU Cooling
Topic: thermaltake cl-p0019 FANLESS103
Replies: 8
Views: 3639

I looked at this also. But I have not tried it. There are a number of reviews on the net that you can look at. They all had good things to say about it. It does need to have some air flow through the cooling fins to work. One of the reviews that I looked at had marginal (at best) air flow through th...
by hvengel
Thu Aug 05, 2004 5:15 pm
Forum: CPU Cooling
Topic: A64 Fans & cool n quiet
Replies: 5
Views: 3208

Is Q-fan part of the BIOS or is this something that runs in Windows?
by hvengel
Thu Aug 05, 2004 4:53 pm
Forum: CPU Cooling
Topic: Athlon 64 with Cool ‘n’ Quiet under Linux!
Replies: 4
Views: 2641

I should have also said that SATA is supported by the 2.6 kernel but that many of the software based RAID controllers (like the Promise controllers) that are on many motherboards are not. These can be used in IDE mode. So if you want RAID you will either have to get a true hardware RAID card (one th...
by hvengel
Thu Aug 05, 2004 4:01 pm
Forum: CPU Cooling
Topic: Athlon 64 with Cool ‘n’ Quiet under Linux!
Replies: 4
Views: 2641

I am not currently running a K8 but I do run SuSE 9.1. The Linux forums are reporting that C'nQ is working great if the motherboard supports it. It has also been reported that the Asus K8V SE will work well under SusE 9.1 with full C'nQ support. It seems to be the top K8 board for those running Linu...
by hvengel
Wed Aug 04, 2004 12:50 pm
Forum: Consumer Advocacy
Topic: Bad, SilentMaxx, Bad!!!
Replies: 49
Views: 44893

Has anyone here used the water cooled version? Are there any other water cooled PSUs?
by hvengel
Thu Jul 15, 2004 12:12 pm
Forum: The Silent Front
Topic: Athlon 64 FX-53 Machine
Replies: 12
Views: 5504

For a 2D only Windows only machine the Matrox cards are great particularly for a dual or triple (P750) monitor setup. But if you think you may want to give Linux a try the P650 and P750 Linux drivers are a real mess. The Matrox web site claims that these cards are supported under Linux but Linux use...
by hvengel
Thu Jul 15, 2004 10:58 am
Forum: The Silent Front
Topic: One way to compare fan air pressure output, accurately
Replies: 7
Views: 3137

The idea of using a sealed bag to measure fan pressure is interesting but may not relate to the real world. In the real world fans move air and operate at a modest pressure differential. In fact one of Mike's rules for building a silent or quite pc is to select (or build) a case that has a low imped...
by hvengel
Thu Jul 15, 2004 9:55 am
Forum: The Silent Front
Topic: Quiet speakers - no hum
Replies: 10
Views: 6425

What a sad commentary. Altec Lansing at one time built world class speakers. These were very expensive and much of the work was done by hand to very exacting tolerances. My father has a set of AL Voice of the Theator speakers from the late 1960s or early 1970's (home version with walnut cabinets). T...
by hvengel
Wed Jul 14, 2004 9:56 am
Forum: The Silent Front
Topic: Bluetooth, ultimate silence solution?
Replies: 31
Views: 18159

Why Linux? Heres why. Linux (or any Unix type OS) already has the facilities for this built-in. Its called XServer/XWindows which divides the display/keyboard and pointer (mouse) functions into server and client components. The client component is light weight and most of the work is done on the ser...
by hvengel
Mon Jul 12, 2004 12:27 pm
Forum: The Silent Front
Topic: Athlon 64 software cooling (disconnect/HLT/Cool&Quiet)
Replies: 52
Views: 122984

Now for something completely different. All of the posts about CnQ seem to be about Windows systems. I am a Linux user and I also like quite computers. I am currently running an Athlon xp CPU with SuSE 9.1 which uses the 2.6 kernel. I have used the command line hack to enable the the cool bit and my...