Search found 276 matches
- Thu Sep 21, 2006 11:38 am
- Forum: Fans and Control
- Topic: Fan controller with display
- Replies: 7
- Views: 5167
Re: Fan controller with display
If only someone would market a really ugly fan controller with decent features... Agreed. I like my t-bal so far, but it does need software to configure. Been there . ...might go back, actually. This time I'm going to use it to control the environment in my closet (NAS, Router, Modem, etc.). Mostly...
- Wed Sep 20, 2006 9:51 am
- Forum: General Gallery
- Topic: Apprentice_GM PC silencing project
- Replies: 6
- Views: 7335
#1 is as good as any, and certainly the best to fabricate. Keep in mind that thickness and type of material makes a difference, particularly for fins that large. Think of the fin as a pipe for the heat. If you use a small pipe, the heat will have trouble getting to the outermost surfaces. Gut feel s...
- Tue Oct 05, 2004 11:15 am
- Forum: Cases and Damping
- Topic: Is smaller better for airflow?
- Replies: 4
- Views: 2980
I think shape is more important than size. In a smaller case of the same layout, the 'heat pockets' will only get smaller. That in turn will decrease their thermal mass and ability to conduct; the machine will be hotter. Before you start switching cases, consider spending time with a manilla folder,...
- Tue Sep 28, 2004 12:11 pm
- Forum: The Silent Front
- Topic: PC control over Cat5
- Replies: 3
- Views: 2330
PC control over Cat5
Remember this ? Well, I just can't let it die. Today I found an article from intersil about how to use their parts to send video over cat5. It looks like I can sample most of the parts, so I'm thinking I might be able to build one (or three) of these things. The trick is keyboard and mouse. The vide...
- Tue Sep 28, 2004 11:51 am
- Forum: Fans and Control
- Topic: Is there a Full-On/Full-Off Thermostat-type Circuit?
- Replies: 21
- Views: 9542
My ears were burning so I thought I'd check in. It sounds like you've got all the info you need from cpemma's post. The only difference in my design was using a p-fet to switch the fan. That way i could put a big 'ol resistor across the fet to have the fan switch to low speed (instead of off) and no...
- Fri Aug 13, 2004 10:21 am
- Forum: The Silent Front
- Topic: Real silence - move your PC to another room!
- Replies: 126
- Views: 153129
- Sun Aug 08, 2004 1:56 pm
- Forum: Fans and Control
- Topic: How to make RPM Signal for 2-Wires Fan
- Replies: 77
- Views: 81069
- Thu Aug 05, 2004 6:21 am
- Forum: System Advice / Troubleshooting
- Topic: Low power network storage
- Replies: 9
- Views: 8887
I agree with going used. 1GHz is way more than you need unless you are running database apps or somesuch. Plus you've already got all the stuff that wears out; there's no risk. You could probably get started for less than $100. I took some quick snaps of the NAS-esque machine hanging from my ceiling...
- Wed Aug 04, 2004 3:29 pm
- Forum: Fans and Control
- Topic: Do any of you true silent junkies run any fan @ 12 volts?
- Replies: 12
- Views: 5603
- Wed Aug 04, 2004 1:11 pm
- Forum: Off Topic
- Topic: Desktop ScreenShots
- Replies: 91
- Views: 51283
nevermind the OS stuff, here is the current image of choice. Thanks to explodingdog.com
- Tue Aug 03, 2004 12:42 pm
- Forum: Fans and Control
- Topic: How to make RPM Signal for 2-Wires Fan
- Replies: 77
- Views: 81069
just from memory, it's something like this http://home.austin.rr.com/segerstrom/fwf/tach.jpg J1 is fan, J2 is PC R1 is a current shunt, C1 shifts the level up to something the comparitor can deal with (nominally set by R4 & 5). R2 & the pot R3 set the tach threshold. If you've got a scope, start wit...
- Mon Aug 02, 2004 6:37 pm
- Forum: The Silent Front
- Topic: Real silence - move your PC to another room!
- Replies: 126
- Views: 153129
If they were ethernet I imagine they would cost even more. With Cat5 you do get 4 UTPs, that helps. I think the gonzo settings you mention require 2 cables as well. It's kinda lame that they decode the analog signal only to recode it again. It seems more elegant to me to have a graphics card that sp...
- Fri Jul 30, 2004 1:29 pm
- Forum: The Silent Front
- Topic: Real silence - move your PC to another room!
- Replies: 126
- Views: 153129
Holy smoke. In this case I almost wish I had not searched the forums first. But, here goes: I already have a PC in my office closet (along with the cable modem & router). Cat5 runs all over the house, including to a hub on the desk that goes to my wife's PC, the printer, and any other gizmo that I n...
- Wed Jul 28, 2004 7:25 am
- Forum: System Advice / Troubleshooting
- Topic: Back-of-LCD variable power consumption PC
- Replies: 12
- Views: 7666
- Sun Jul 18, 2004 3:28 pm
- Forum: Power Supplies
- Topic: Q: using PS for slot cars?
- Replies: 2
- Views: 1752
The ATX spec requires a minimum load for a supply to run, and it's not trivial--something like 2A on the 5V line, something else for +3.3 and +12. Look it up at formfactors.org. In the 'black box' I made to use a power supply for bench use I put resistive loads (and the corresponding fan) to make su...
- Wed Jul 14, 2004 11:22 am
- Forum: Power Supplies
- Topic: Quieting a strange server power supply
- Replies: 2
- Views: 2028
Page 77 says there's a system setup category that "Sets the fan to full speed or a lower, noise reduction speed." Have you tried it? Page 18 shows the power supply has "Pin 21 — Thermal fan-speed control (TFSC) is a power-supply input signal used to control power-supply fan speed in special applicat...
- Wed Jul 14, 2004 9:32 am
- Forum: System Advice / Troubleshooting
- Topic: Extremely low power and quiet pc
- Replies: 11
- Views: 9850
- Tue Jul 13, 2004 2:42 pm
- Forum: Fans and Control
- Topic: new fan standard -> i'm giddy!
- Replies: 7
- Views: 4855
I see a few problems with this proposed standard. The first is that the fan becomes more expensive. I'll bet most of the cost will be in the wire; the new style just reshuffles the components in existing fans. Fan mfgr's blew it when they didn't put the header on their part and forced someone else ...
- Tue Jul 13, 2004 12:45 am
- Forum: Fans and Control
- Topic: new fan standard -> i'm giddy!
- Replies: 7
- Views: 4855
new fan standard -> i'm giddy!
Anyone fan-nerdy enough to read about the new 4-wire fan (no, not the big clunky molex variety) standard? Intel is behind this one, too. a taste of the future . The bottom line is they seperate PWM from tach, so the PWM frequency can be much (1000x) higher while still getting good tach signals. Also...
- Mon Jul 12, 2004 10:31 pm
- Forum: Power Supplies
- Topic: How to completely drain a power supply...
- Replies: 42
- Views: 132865
Shorting the green (PWR_ON) wire with a black (GND) wire on the ATX header will force the power supply to try and turn itself on. A paper clip does the job nicely. If the supply is unplugged the caps will drain to safe levels quickly. This, to me, is a better bet than the push-the-button-over-and-ov...
- Mon Jul 12, 2004 10:12 pm
- Forum: System Advice / Troubleshooting
- Topic: Extremely low power and quiet pc
- Replies: 11
- Views: 9850
Most, if not all, of the information you're after is already in the forums. Read the 'sticky' threads in the areas you care about (e.g. power supplies, fans & control) and you'll learn a lot. From there a few good searches will get you a lot more. Once you have a handle on the information that's out...
- Mon Jul 12, 2004 8:43 am
- Forum: Power Supplies
- Topic: DC Wall Supply?
- Replies: 22
- Views: 11040
- Mon Jul 05, 2004 7:28 pm
- Forum: Power Supplies
- Topic: DC Wall Supply?
- Replies: 22
- Views: 11040
Neat idea. We use 'built in' transformers for home low-voltage lighting installations all the time (halogen bulbs are typically 12V). http://electronictransformer.com/cgi-bin/app.cgi?pg=store for example. Here's the rub: the lower the voltage the higher the losses in the line. That's why power is di...
- Thu Jul 01, 2004 7:02 pm
- Forum: Fans and Control
- Topic: FAN power from USB
- Replies: 19
- Views: 11720
if they could do that do bowling balls, then they wouldn't need the fan on the end of the ball-return thing. maybe the next big thing will be a mouse with a TEC and cooling fins. When you hold down both mouse buttons the scroll wheel adjusts the temperature. i kid, only. i admire all the folks out t...
- Thu Jul 01, 2004 11:40 am
- Forum: Fans and Control
- Topic: FAN power from USB
- Replies: 19
- Views: 11720
- Thu Jul 01, 2004 6:02 am
- Forum: Power Supplies
- Topic: Fooling Dell
- Replies: 24
- Views: 10987
I ordered samples of the MM74C906 from fairchild, should be able to whip up a ~150 Hz ( = 4500 RPM) generator without much trouble once they show up. Two resistors and a cap should do it. But, then, by the time the parts have shown up I will loose interest and the thread will die. Whatever... //edit...
- Wed Jun 30, 2004 7:32 pm
- Forum: Cases and Damping
- Topic: SV25 dead, so new PSU or new case?
- Replies: 4
- Views: 2792
I ended up getting a case. Mini-tower, 300W supply, $10 after rebate from Fry's! I'm certain that I got what I paid for. The thing must be made of 20ga steel. I think if I punched it my hand would go though. The good news is I was able to mount a 2nd drive (noisy old 2.5", but spun down most of the ...
- Wed Jun 30, 2004 7:07 pm
- Forum: Power Supplies
- Topic: Fooling Dell
- Replies: 24
- Views: 10987
Would it be possible to make a small oscilator to fool the motherboard sensor? I'm sure a simple 555 ic application would do the job. I was just thinking that. If you don't care what speed gets reported, just make something to fake it out. I'd lean toward using an open-collector inverter package wi...
- Sun Jun 27, 2004 10:58 am
- Forum: Fans and Control
- Topic: Your opinion about fan speed algorithm plugin for speedfan?
- Replies: 9
- Views: 14241
My hope in building controllers is that people would take advantage of the relatively simple set of commands (sent via serial port) and develop their own top layer stuff. Over time and iterations it could develop into something really neat. Didn't happen. At all. I wonder if the guys don't want to g...
- Fri Jun 18, 2004 8:47 am
- Forum: CPU Cooling
- Topic: My CPU Duct (Pictures!)
- Replies: 36
- Views: 33447
Nope, I hadn't seen that -- but the text in that first link is a little confusing and appears to suggest that the CPU can be cooled passively! The PDF says that CPU HS fans are still required. That's probably related to their requirement(?) that the duct be seperated from the CPU by 1/2" or more. I...