EXTREME Overclocking
Home | Reviews | EOC Forums | File Downloads | RealTime Pricing Engine | Free Magazines | Folding Stats Contact Us
kangaroos

Dynatron DC1206BM-R 1U Heatsink

Date Reviewed: January 28, 2001
Reviewed By:
Jason Rabel
Companies: Dynatron

 

Is Bigger Always Better?:

For the average overclocker, bigger is usually better. We like big heatsinks, big hard drives, big fans, big sound, big cases, big monitors, just about everything related to the computer seems better if it is bigger. But not everything we like is necessarily bigger. Processors, while have been increasing in speed, have been shrinking in physical size. The constant shrinking of PC components over the years has led to high end workstations and servers that used to take up an entire room shrink down to something the size of a pizza box.

In the typical server environment, most hardware is put into racks for easier management and to maximize available space. A typical 19" rack cabinet can hold 42U worth of equipment. The 19" refers to the width to mount equipment and a "U" is actually 1.75" for height. Companies that make rack equipment specify the height in "U" with the smallest being a 1U chassis and typically go up to 4U for most single pieces of equipment. I have seen some servers & equipment that were 8U or greater in height, but those are the really hefty stuff like an eight-way Xeon server combined with a RAID array or some older equipment like a quad P-Pro system. If you want to visual sizes, a typical mid-tower case turned on its side would be a little higher than 4U and probably about 18" wide.

To maximize the available space in a rack cabinet, many companies are purchasing or upgrading to 1U servers. The size may be smaller than what most of us typically associate with a powerful system (because of our bigger is better mentality), however looks can be deceiving. Various "2-in-1 servers" are trickling out into the market place, where they squeeze two single or dual processor (AMD or Intel) systems into a single 1U rack chassis giving a total of up to 4 processors in only 1.75" of rack space! Now that is some processing power!

Given the confined space in a 1U chassis, space is definitely at a premium. Also with all the components being is such close proximity of each other a lot of heat is going to be generated necessitating good cooling and solid components throughout the case.

 

Small Size, Big Cooling:

In steps Dynatron with their DC1206BM-R copper cooler designed for 1U systems. The heatsink comes shrink-wrapped, along with the base being covered with an oily agent to prevent it from oxidizing. The fan is an 11-bladed Top Motor low profile 60mm x 10mm rated at a good 24.4CFM @ 5300RPM and supports RPM monitoring. A blister pack of thermal compound is also included.

Before installation, the base of the heatsink should be cleaned off (I use isopropyl alcohol) to clean off the oil residue. The heatsink base also looks to have been plated, or maybe powder coated, to give a very shiny and protective layer from oxidation. You can see from the picture below how well it reflects the wood grain from the table & the fan wires. The base has also been machined very flat before the coating went on. Two thumbs up for paying such close attention to details and putting in the extra steps to make a better product.

As if the base wasn't impressive enough, the heatsink features sixty fins based on Dynatron's high-density Microfin technology for some impressive cooling surface area. Unlike other companies where the fins and the base are two separate pieces which have been soldered together, the Dynatron heatsink is made from one solid piece of copper. The Microfin technology is actually pretty interesting and you can read more about it here. All this copper amounts to 220 grams (or roughly 1/2 a pound) of some serious cooling action.

To get a good idea of how small this cooler actually is, the entire heatsink (with fan) is only 24mm tall! It is almost the same dimensions as typical 60x25mm fans that are on most heatsinks!

 

Testing & Temperatures:

The heat sink was tested on an ABIT KT7A-RAID w/Athlon 1.4GHz at default voltage. The board was placed on an open workbench to keep the ambient temperature controlled and constant. The system would sit at the windows desktop to idle, then Prime95's torture test was used to put the CPU under load.

In the chart of the temperatures below, you may wonder what it means when it says "top" and "bottom", so here is a quick explanation:

 

Top:

An external temp probe is touching the side of the CPU core for a direct reading.

Bottom:

The built in motherboard probe takes a less direct reading from the bottom side of the CPU.

Ambient Temperature:
74.1F 23.4C

 

 

CPU
Idle Top
CPU
Idle Bot.
CPU
Load Top
CPU
Load Bot.
Fan CFM
Dynatron DC1206BM-R 80.4F / 26.9C 78F / 25.6C 124.5F / 51.4C 125F / 51.7C 24.4CFM

 

Conclusion:

Running at about 125F is a pretty respectable temperature for any good heatsink for a 1.4GHz Athlon, for a 1U heatsink this is just awesome. It may be small but it certainly packs quite a bit of punch thanks to its all copper design and Microfin technology. Dynatron also has 1U active heatsinks for the P4 and 1U passive solutions (for both AMD & Intel) as well. For questions about the DC1206BM-R or other 1U Dynatron heatsinks you can contact Dynatron directly with your inquiries.

This being our first 1U heatsink review, it is not really fair to compare it to the massive regular heatsinks used on desktop systems. However as more 1U heatsinks come in we can get a better idea of overall performance and comparison, though I think it is going to be tough to beat this Dynatron cooler.

 

Back To The Main Page

 

 

 

Sponsored Links
Most Downloaded Files
Recently Added Files
CPU-Z 1.4912/12/08
Compare Prices On Top Brands!
Search:
For:

Intel Processors
Core i7/i5 - Nehalem
975 Extreme  960  950  920
870  860  750  670  661  660

Core 2 Quad - Yorkfield
Q9650  Q9550  Q9400  Q9300  Q8300  Q8200

Core 2 Duo - Wolfdale
E8600  E8500  E8400  E8200  E7300  E7200

AMD Processors
Phenom II X4
965 Black  955 Black  945  925

Phenom II X2
555  550

Athlon II X4
630  620

Athlon II X3
435  425

Athlon II X2
250  245

Video Cards
nVidia GeForce GTX 200 Series
GTX 295  GTX 285  GTX 280  GTX 260

nVidia GeForce 9 Series
9800 GX2  9800 GTX+  9800 GTX  9800 GT  9600 GT  9600 GSO

ATI Radeon HD 4000 Series
4870 X2  4870  4850  4830  4670  4650

Search By Brand
ASUS  BFG  Diamond  eVGA  Gigabyte  HIS  MSI  Palit  PowerColor  PNY  Sapphire  Visiontek  XFX

PC Memory
DDR3  DDR2  DDR

Motherboards
ASUS  Biostar  DFI  ECS  eVGA  Foxconn  Gigabyte  Intel  MSI  Shuttle  Supermicro  Tyan  XFX

Hard Drives
Seagate  Maxtor  Samsung  Fujitsu  Western Digital

  Technology Magazines FREE to Qualified Professionals.
eWeek MagazineeWeek is the essential technology information source for builders of e-business. Focuses on e-commerce, communications and Internet-based architecture. Oracle MagazineOracle Magazine contains technology-strategy articles, sample code, tips, Oracle and partner news, how-to articles for developers and DBAs, and more. Dr. Dobb's JournalDr. Dobb's Journal enables programmers to write the most efficient and sophisticated programs and help in daily programming quandaries. InformationWeekInformationWeek is the only newsweekly you'll need to stay on top of the latest developments in information technology.
  Other Popular Titles: PC Magazine, BusinessWeek, Baseline, Business Solutions, Software Magazine, InfoStor, Security Source , TelevisionWeek, more...
Copyright 2000-2014 EXTREME Overclocking. All rights reserved.
Disclaimer of Liability - Privacy Policy
Secret Forum