Dynatron ranked incorrectly?

HardwareFreak · 09-11-04, 03:44 AM

I'm looking thru the Socket A heat sink rankings and notice that a Dynatron copper heatsink is listed with a c/w of 0.40 in the rankings page, but when you read the test article, all the results in the table are in the c/w 0.2x range.

Actually, both of the Dynatrons are listed at c/w 0.40 in the rankings, these two:

Dynatron DY1206BH-L638: 0.40
Dynatron DC1206BM-L638: 0.40

And yet the test data for both of them shows their c/w's in the 0.2x range.

Why is this?

archilochus · 09-11-04, 06:51 AM

I see your point...Good observation..

Email Joe

Quote:

CONCLUSIONS
The tested C/Ws place the Dynatron at the top rank of air cooled heatsinks. For aggressive cooling of Socket A CPUs, the Dynatron is very competitive, but the noise/performance tradeoff is one that each user must confront.

I expect to see more heatsinks delivering C/Ws below 0.25, but mostly with significant noise penalties. Expect to see attempts to use 80 mm (maybe 92mm?) fans as one means to reduce noise, although fan tip speeds will mitigate noise reductions.

SOURCE LINK

Tony Carr · 09-11-04, 10:50 AM

The little Dynatrons with copper bottom or all copper are very good coolers but they don't advertise much or at all and their coolers are inexpensive so maybe that has something to do with it . Any time I've seen a review or comparison including the Dynatron microfin in it , the results were very good .
Link below is the BH-610 cooler I use when I build a rig for someone , I sometimes put a 60mmX25mm 27cfm 34dba fan on the heatsink and it's a great all around cooler .

http://www.newegg.com/app/ViewProduc...114-011&depa=0

pwnt by pat · 09-11-04, 12:17 PM

"Dynatron DY1206BH-638"
Joe Citarella - 8/26/01

Since 2001, testing methods have been updated. The initial tests were done on t-bird procssors.

HardwareFreak · 09-12-04, 04:44 PM

Quote:

Originally Posted by pwnt by pat

Since 2001, testing methods have been updated. The initial tests were done on t-bird procssors.

You didn't read my post closely enough. The rankings page states 0.40 c/w, but in the review it states 0.23 c/w.

pwnt by pat · 09-12-04, 08:15 PM

The tests the heatsink was origionally done with was using a tbird processor. The newer testing methods use a cpu die simulator that I believe is set to 100w. Using the tbird setup, a c/w of .23 isn't that bad, however that's only for that chip in that board with the thermal probe used. I'm sure as the cpu die simulator was finilized, all heatsinks were re-tested so that they are all ranked on fair grounds, not specific hardware.

TheWesson · 09-12-04, 09:21 PM

The coolness of a heatsink isn't just the thermal resistance, it's also the coolness of the name. All heatsinks with dumb-sounding names ("Speeze" "Dynatron") automatically get downranked by 0.15 C/W.

the wesson

09-11-04, 03:44 AM	Thread Starter #1
HardwareFreak Registered Join Date: Apr 2004 Location: St. Louis, MO	Dynatron ranked incorrectly? I'm looking thru the Socket A heat sink rankings and notice that a Dynatron copper heatsink is listed with a c/w of 0.40 in the rankings page, but when you read the test article, all the results in the table are in the c/w 0.2x range. Actually, both of the Dynatrons are listed at c/w 0.40 in the rankings, these two: Dynatron DY1206BH-L638: 0.40 Dynatron DC1206BM-L638: 0.40 And yet the test data for both of them shows their c/w's in the 0.2x range. Why is this? __________________ Dual PPGA Celeron 366@550 @2.05v, 384MB PC133, 100MHz FSB, Abit BP6, dual CoolerMaster Hyper 101s, 24c idle 31c max Linux Server: MX mail, IMAP, web, CIFS, DNS recursor, etc -- Still running strong after 12 years Athlon II x2 250@stock 3GHz, 2GB DR3-1333, Foxconn MCP61P, Cooler Master Hyper 101, 33c idle 44c max GeForce GT240 1GB DDR3 @stock w/Accelero S2 + Delta 92mmx15mm AFB0912HHB Scythe 4 channel fan controller: 92mm GPU, 2x92mm case, PSU fan I never thought I'd see the day, but at 41 I now prefer quiet and cheap to loud, boosted clock, and expensive. Maybe I'll catch the OC bug again one day. If I do I won't screw around. It'll be a dual loop setup with 9x 95w 14.4v TECs -- ~700w @ 12v. I have an old dual chamber Chenbro pedestal server case that can hold 3 triple 120 dual core rads plus 9 fans and dual PSUs internally.
	QUOTE Thanks

09-11-04, 10:50 AM	#3
Tony Carr Member Join Date: Aug 2004 Location: USA	The little Dynatrons with copper bottom or all copper are very good coolers but they don't advertise much or at all and their coolers are inexpensive so maybe that has something to do with it . Any time I've seen a review or comparison including the Dynatron microfin in it , the results were very good . Link below is the BH-610 cooler I use when I build a rig for someone , I sometimes put a 60mmX25mm 27cfm 34dba fan on the heatsink and it's a great all around cooler . http://www.newegg.com/app/ViewProduc...114-011&depa=0
	QUOTE Thanks

09-11-04, 12:17 PM	#4
pwnt by pat Member Join Date: Jun 2003 Location: Cranberry Twp. PA	"Dynatron DY1206BH-638" Joe Citarella - 8/26/01 Since 2001, testing methods have been updated. The initial tests were done on t-bird procssors. __________________ Intel 630 ASUS P5LD2-VM 2x256 WINTEC AMP-X Raptor 360gb + Seagate sata 400gb Pioneer DVR-106 Antec True350 Cheapest black USB keyboard from the Egg + Razer Viper Some people don't deserve to have anything electronic other than a TV, and maybe a toaster, becuase they may hurt themselves and possibly someone else.
	QUOTE Thanks

09-12-04, 08:15 PM	#6
pwnt by pat Member Join Date: Jun 2003 Location: Cranberry Twp. PA	The tests the heatsink was origionally done with was using a tbird processor. The newer testing methods use a cpu die simulator that I believe is set to 100w. Using the tbird setup, a c/w of .23 isn't that bad, however that's only for that chip in that board with the thermal probe used. I'm sure as the cpu die simulator was finilized, all heatsinks were re-tested so that they are all ranked on fair grounds, not specific hardware. __________________ Intel 630 ASUS P5LD2-VM 2x256 WINTEC AMP-X Raptor 360gb + Seagate sata 400gb Pioneer DVR-106 Antec True350 Cheapest black USB keyboard from the Egg + Razer Viper Some people don't deserve to have anything electronic other than a TV, and maybe a toaster, becuase they may hurt themselves and possibly someone else.
	QUOTE Thanks

09-12-04, 09:21 PM	#7
TheWesson Member Join Date: Dec 2003 Location: Portland, OR usa	The coolness of a heatsink isn't just the thermal resistance, it's also the coolness of the name. All heatsinks with dumb-sounding names ("Speeze" "Dynatron") automatically get downranked by 0.15 C/W. the wesson
	QUOTE Thanks

Dynatron ranked incorrectly?

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