F
Felger Carbon
AMD Athlon and Opteron Thermal Design Guide
#26633 rev 3.03, Sep 2003, 5M pdf
82 pages. The public source-document from which our present-day
Socket 754, 939, and 940 thermal solutions arise. Provides basic
specifications. If you think these specs are adhered to today, you're
outa your cotton-picking mind. The commercial folk have taken that
spec and improved on it. Improved considerably.
For instance, the length and width of the extrusion is specified as
68mm by 77mm. That is both the minimum and the maximum allowed.
That's because it fits into a plastic frame that has a cavity that
size.
The frame hasn't changed. The commercial HSF I have sitting in mine
measures 3.65" square, which is a tad over 92mm square. The maker
trims the bottom of this humongous extrusion so that it fits properly
into the 68x77 cavity. Then, as soon as the top of the plastic frame
is cleared, the extrusion blossoms outward to ~92mm.
Because (at the time the spec was written) 70mm fans (instead of 60mm)
were just becoming widely available, the spec suggests using 70mm
fans. And the spec does allow the size of the HSF, including the fan,
to be large enough for the 70mm fan to be legal.
My commercial HSF uses a 92mm fan.
If you'd like to download a copy of the 82-page PDF document, log on
to www.amd.com and do a search on 26633. You should find more than
one revision. Take rev3.03, the latest. The interesting stuff starts
on page 18 of the PDF.
#26633 rev 3.03, Sep 2003, 5M pdf
82 pages. The public source-document from which our present-day
Socket 754, 939, and 940 thermal solutions arise. Provides basic
specifications. If you think these specs are adhered to today, you're
outa your cotton-picking mind. The commercial folk have taken that
spec and improved on it. Improved considerably.
For instance, the length and width of the extrusion is specified as
68mm by 77mm. That is both the minimum and the maximum allowed.
That's because it fits into a plastic frame that has a cavity that
size.
The frame hasn't changed. The commercial HSF I have sitting in mine
measures 3.65" square, which is a tad over 92mm square. The maker
trims the bottom of this humongous extrusion so that it fits properly
into the 68x77 cavity. Then, as soon as the top of the plastic frame
is cleared, the extrusion blossoms outward to ~92mm.
Because (at the time the spec was written) 70mm fans (instead of 60mm)
were just becoming widely available, the spec suggests using 70mm
fans. And the spec does allow the size of the HSF, including the fan,
to be large enough for the 70mm fan to be legal.
My commercial HSF uses a 92mm fan.
If you'd like to download a copy of the 82-page PDF document, log on
to www.amd.com and do a search on 26633. You should find more than
one revision. Take rev3.03, the latest. The interesting stuff starts
on page 18 of the PDF.