Silent PC Review is passionate about ergonomic spaces for people and finding creative, practical solutions to silencing all kinds of IT machines. We provide detailed reviews and ground-breaking knowhow about the acoustics of computers and components, as well as their energy efficiency and thermal performance.

360 Watt Fanless ATX PSU

At this German site, www.deltatronic.info, they build/sell a 360 Watt(!!) Fanless ATX PSU with Active PFC. It is a serious looking device covered with heatsinks, sort of like a macho car power amp. The bad part is that it's 295 Euro's!

Deltatronic also offer a serious liquid-cooled version of the aluminum cool & quiet drive sandwich idea written about by MikeC. Again, with grooved ribbed heatsinks on the top & bottom as well as side rails, the device looks like a high end car amp.

The site is in German; Google does an OK translation.

Sudhian Media reviews Lex System SFF PC

Sudhian Media has posted a review of the Lex System, a small form factor box utilizing chips from VIA and Intel. Because of an external power supply, these units can be run silently, especially when combined with a VIA C3 800 or similar chip. On the downside, the Lex systems require their own, proprietary FlexATX motherboards, so upgrade options are limited.

NoVibes III HDD Decoupling Rack

Storage
SPCR's review of the NoVibes III hard drive decoupling bracket by NoiseControl.de, which supplier Silicon Acoustics says is "ideal for drives like the Barracuda IV whose noise is primarily vibrational in nature." A counterpoint to Smart Drive, another drive noise reduction product also sold by Silicon Acoustics and previously reviewed here.

Vantech "Stealth" 3-fan PSU: PREview

We don't usually do previews, but the Vantec rep was so insistent on a quick review that I felt compelled to give her what wanted, at least on a small scale. So here is SPCR’s first preview, being written less than an hour after its delivery by UPS, and only half an hour after first powering it up on the testbench.
The accompanying photo was taken with the Vantec VAN420A in front of a mirror so that you can see it really does have three 80mm fans.

AMD Thoroughbred "B" Catches P4, Runs Cooler?

Stories today in virtually all the major hardware sites about the new Thoroughbred "B" XP 2400+ and 2600+ restablish AMD as the speed holder in the processor race against archrival Intel. The new XP models are faster, more overclockable and produce less heat per clock cycle than the first Thoroughbreds. The higher efficiency was apparently achieved by moving to 9 layers of interconnects (from 7) and copper (instead of aluminum). The XP2100+ at 1800MHz produces 67.9W, almost exactly the same as the 68.3W of the new 2600+ running 333MHz faster!

Still, the CPU surface is 40% smaller than with the earlier Paomino XP, and there is no helpful heat spreader as in the Intel Pentium 4 and the coming AMD Hammer.

VIA's Mini-ITX Projects Page now Live

VIA's Mini-ITX projects page is now live at their main web site. Some mind boggling car projects are featured -- min-itx PCs in model cars & REAL cars, the latter with flat screen monitors in the middle of the dash.

Zalman ST300BLP "Black Box PSU Mod" at Frostytech.com

Frostytech has done a very "extreme" mod on an early model Zalman PSU. Definitely attractive, but does this help the acoustics?

Serial ATA benefits for PC Heat/Noise

We've reported here on Seagate's Serial ATA Barracuda hard drives, but given scant attention to the benefits of the new interface. Dell provides a good overview of these benefits, which includes:

- backward compatibility with ATA
- higher potential dtata flow rates (150~600MB/sec)
- low cost
- improved data bobustness

For PC silencers, however, the single most interesting aspect of Serial ATA is the replacement of "the wide Parallel ATA ribbon cable with a thin, flexible cable that can be up to 1 meter in length."

It doesn't take a great deal of imagination to consider what this means:

- Less cable clutter, leading to improved airflow and reduced air turbulence noise.
- The option to place hard drives in an external case optimized for low noise and good cooling (without spending an arm and a leg on external USB drives), which would also have the benefit of lowering the total heat in the main CPU box.

We're already working on our external drive caddy. :)

Installing Debian Woody on an Eden EPIA VE1000

SPCR reader dbri has posted a set of instructions on installing the latest release of Debian (Woody) on a VIA Eden VE1000 system in the SPCR Forums.

Q-Technology QT-02300 Power Supply

Power
Long considered the quietest PSU on the market, Q-Technology has now discontinued their original 230W model and offers 250, 300, 400 and 460W models. We examine one of their 300W models. Does it continue the Q-Technology tradition? How does it compare with quiet PSU models from other manufacturers?

CPU Undervolting & Underclocking: A Primer

CPUs|Motherboards
Two terms that often come up in Silent PC Review are undervolting and underclocking. These terms refer to setting the CPU core voltage and clock speed under the default settings in order to lower its heat output and make it easier to cool with a quiet, low speed fan. Computing performance does take a hit, but CPU temperature can be lowered dramatically, making it much easier to obtain quiet operation.

SPCR announces new forums!

We are pleased to announce our new-and-improved User Forums. Offering many new features, as well as increased ease-of-use, we think you'll find these new forums a big step up from the old system.

Posts and user accounts from the old system were, for the most part, preserved during the upgrade, but there were a few quirks and snags that we ran into. For complete information about the upgrade, please read our announcement in the Site News forum.

JMC’s new 92x32mm Single-Fan Cooling Solution

JMC Products, a manufacturer of thermal cooling solutions, today introduced the 9232-12V DC fan, designed to cool an entire computer chassis. The 9232-12V has been effectively applied with a passive heatsink and baffling system to direct air through the heatsink and out of a dual or single processor workstation. The fan can also cool power supplies in a similar method.

The 9232-12V can be thermally controlled for low noise (20 dBA) at low speed. Consuming little power at high speed, it cools a system with an impressive 82 CFM, running at 4000 RPM. (But not quietly at that speed!) Available now for OEM & dstributors in low, medium and high speeds at $5 to $6 depending on features, speed, and quantities. For more info, visit www.jmcproducts.com.

Vantec Stealth PSUs Coming Soon

Vantecusa.com is getting ready to release a new series of Stealth Power supplies that are supposed to be powerful and very quiet. It's good to see another manufacturer recognizing the noise issue. The noise stats cited suggest they will actually be quieter than the top ranked ones on our Recommended PSUs, but we'll have see how the measurements were made. They do have three fans, after all...

MSRP & noise ratings for these product are:
420W -- $129 -- 18 dBA
470W -- $139 -- 20 dBA
520W -- $149 -- 22 dBA

Vantec USA anticipates delivery of review units by the end of this month and shipment to distributors shortly thereafter. Hopefully, they will send over some samples for us to review.

Fanless PCI Radeon?

VIAHardware has a review of a 64MB Radeon that fits in a PCI slot and on top of that it's fanless! Looks perfect for one of the sans-AGP Shuttle mini-barebones systems.

Check out the review here.