The change in idle temps indicates that something in your system changed. Did you change the speed setting on the CPU fan? Did you change you case fans or thier speeds? It sounds to me that the CPU cooler shifted and does not have good contact with the CPU. What happened if you open your case so tha...

Looks like a serious attempt to build a fully integrated quite PC case. The built in HDD case and suspension if it was done correctly looks like it could be a real winner but there is only one of these. It also looks like it will have very good HDD cooling. If someone gets one of these please let us...

Fanless high amperage single voltage DC power supplies are available with more than enough power to handle a PC. These units have been in production for decades and are large and some what costly. The limitation is that the DC to DC converters (to convert 12V DC into 5V and 3.3V DC) that are availab...

If you heat sink is one with heat pipes you might try placing the temp sensor on the heat pipe near the heat sink base. My heat sink has heat pipes and I can feel them change temps very quickly when I stress the CPU. Much more so than the fins or base of the heat sink.

You might also consider water cooling the hard drive. There are some WC HDD cases available that look like they could have a significant impact on noise levels and this would also remove the HDD heat from the case.

Keep in mind that the 90nm parts have about a 40% smaller die. Therefore to keep the temps the same the amount of heat produced will have to be less. Give the much smaller die a 5C temp increase is very small and I would have expected much higher temps if the power consuption was the same. Given thi...

Depending on what UPS and software you have soem of these will also tell you how much AC power you are using. i know that I was able to do this with the UPS that used to be on my computer that is now on my stepson's computer.

If you create the same amount of heat in a smaller area it will be hotter. So this does not nessarily indicate that the 90nm parts have higher leakage levels. Since AMD has been kicking Intels back side with the 130nm parts they could take the time to make sure that they had it right. Other sources ...

Phase cancelation of noise does not work very well at higher freqs. In addition, it really does not work well at the source. Most because the source in this case is large compared to the wave length of the noise (high freq = short wave length).

I have seen reports on Linux sites about dual boot users having problems with the Windows Cool'nQuite drivers (stability mostly) but having no problems with the support for this in the Linux kernel. So problems with the Windows drivers appear to be affecting more than just a few users. Have you down...

Have you tried ducting this to the exhaust fan. If all of the exhaust air were to flow through the fins of the cooler this might be enough air flow even if the exhaust fan is a small one.

Also the http://snt-systems.com/ site has 350 and 450 watt water cooled PSUs. This site had WC stuff that I had not seen before. Great selection of hard drive cooling solutions even though these are a little pricey.

Also you had 2 fan failures which got the PSU hot enough to shutdown. So this could have made it weaker still.

In addition to the whine many (most) hard drives vibrate at lower freqs. For 7200 RPM drives this is typicaly around 129 HZ. When I had my drives suspended on rubber gromits I noticed a low pitched hum that I had a hard time locating becuse it seemed to come from every where in the PC. I used a mic ...

There are a few water cooled PSUs available from various vendors (at least 2 that I have found). Do some googling and you will find them. These have been asked about on the forum in the past and there does not appear to be anyone here that has used these. So if you get one PLEASE let us know what ex...

The 6800 model line has lower power consumption than the corresponding 5900 models with way higher levels of performance. So it seems reasonable that the low end model could be passively cooled.

I have read that the A64s will work very well with slower memory. Can't remeber where I read this but they specificaly said to use your PC2700 memory unless you just felt like spending your money. The difference at most will be 1% to 2% on most apps. Speed wise it should be about 60% faster than you...

I have the same PSU and I think that Pigpen is correct. I have modded my PSU with new quiter fans and my temps are still about the same as they were with my prior PSU. If your case has restricted air flow and you used the fan only connector on your case fan(s) this could result in significantly redu...

You are probably right about the kind of bricks that are shipped with laptop machines. But you can get really powerfull tightly regulated 12V DC power supplies that are designed for radio transmitters that will handle any PC that exists. See my posts above for some examples. Not cheap and big and he...

Another no fan water cooling kit. See the review at http://www.water-cooling.com/reviews/xice600/page1.php

I was thinking that my radiator would be a passive unit the Zalman unit. So the only components that had moving parts that are exposed to the outside of the case would be the optical drives.

Typical PC consumes 85 to 150 watts. So do the math (24 x 85)/1000 and (24 X 150)/1000 will give the per day KW useage for an 85 watt and a 150 watt PC. So between 2.04 and 3.6 KW per day. So depending on what your electrical rates are that would be $0.16 to $0.60 per day. My PC consumes 204 watts i...

I have considered this same basic idea and I have not found any drawbacks yet. Other than the complexity of the design and contruction. With proper design it should work and be close to totally silent. But I think the design has to be carefully done and getting it right is not trival. I would put wa...

Yes I see what you are getting at. The DC to DC unit is the weak link. I think it will work if all of the components are carefully selected. So no high end graphics cards, a mobil processor and one HDD looks like it would work but not much more. This could still be a fairly powerful system but not a...

And it only costs $350.

If you do a 0 + 1 set up you need 4 drives. Another alternative is to use a Netcell Raidsync controller with 3 drives using it's XL mode (raid 3) to get the same speed, redondancy and capacity with less noise and cost than a 4 drive raid 0 + 1 setup. Unlike the mother board "raid controllers" this i...

Was the problem with the DC to DC supply or with the brick that was being used? "The 200w rating is a little high." Are you saying that the specs for the DC to DC unit are not correct? The specs say it will do 200 watts continous (actualy 204) and almost 300 peak. But if the spec is not correct then...

If you can't find an MB you like with onboard video you can get Matrox G450 cards for almost nothing (as little as $30 if you shop around). These are low heat with no fan, have very good 2D (crisp and clear) and will support two monitor setups. And current models also have DVI outputs. These cards a...

Not sure where to put this. This site has systems that have a fanless PSU and use heat pipes for CPU and GPU as well as a hard drive enclosure in both prebuilt and kit versions. The kit includes the case, PSU, heat pipes and HD enclosure. Check it out. http://www.deltatronic.de/int/test_reports.html...

Has anyone seen this?

Only available in 230V as far as I can tell. One of sites I looked (translated) said something about the inside being filled with some kind of heat transfer substance. So they could not open it up to look at the insides. They also commented on how heavy it is.