Noise levels are really not much of an issue with 1U coolers as SCSI hard drives, case fans and other devices in the rack a lot more noise. However, if you would still like to listen to this heatsink click on the FrostyTech Headphone icon below.

Synthetic Temperature Test Results: *Ranked according to 100W small interface die test results.

1U - FrostyTech Synthetic Temperature Test Platform Results
	Mfg.	Model	Ambient Temp.	27mm large copper block	15mm small copper block		27mm large copper block	15mm small copper block	Thermal pad	No. Fans	Fan Noise	Clip force
				50W	50W		100W	100W
1	Arkua	6149	23.2	50.9	53.1		81.2	81.4	silver	1	low	med
2	Dynatron	DC1206BMR	23.8	51.0	56.5		80.6	86.8	silver	1	med	stiff
3	Spire	5R057B1M3R	23.0	44.9	69.7		66.4	89.7	silver	1	med	easy
4	Thermaltake	DTFCF014-1	26.0	60.0	69.6		94.2	108.4	silver	1	low	easy
5	Thermaltake	TFCFR06	24.9	67.1	71.3		106.1	112.1	silver	1	low	med
6	Vantec	FCE-6010	25.6	70.7	72.4		111.3	116.9	silver	1	low	stiff
				50W	50W		100W	100W

The 1U Orb at first appears to be following in the footsteps of the DTFCF0141, but not quite as well. At 112 degrees Celsius on the 100W small interface die test this little heatsink was really hot - so hot that we began to wonder if the fan would start to melt where it came in contact with the aluminum!

Compared to the other 1U coolers here, the Thermaltake 1U heatsinks (both the extruded and Orb) don't seem to be performing particularly well on the higher end tests.

1U - Rise Above Ambient Temp. (c)
	Mfg.	Model	27mm large copper block	15mm small copper block		27mm large copper block	15mm small copper block
			50W	50W		100W	100W
1	Arkua	6149	27.7	30.0		78.0	58.2
2	Dynatron	DC1206BMR	27.2	52.7		56.8	63.0
3	Spire	5R057B1M3R	21.9	46.7		43.4	66.7
4	Thermaltake	DTFCF014-1	34.0	43.6		68.2	82.4
5	Thermaltake	TFCR06	42.2	46.4		81.2	87.2
6	Vantec	FCE-6010	45.1	46.8		85.7	91.3
			50W	50W		100W	100W

The only respectable results are shown on the 50W tests, and specifically the small interface die test. The results of the Thermaltake 1U Orb on either the large copper interface die, or the small one at 100W are very poor.

Obviously, from these results we can see that the 1U orb is an older design, intended for older processors. With that in mind, the 100W tests are really not fair as such, but they do illustrate quite clearly that what was once good may now be dangerous for your processor. Small die processors which produce less than 50W of heat energy however could see use with the 1U orb, but that is about it.