Thermalright SI-97 dimensions

  • Thread starter Thread starter Tom Morris
  • Start date Start date
T

Tom Morris

Hi,

I am considering purchasing the Thermalright SI-97, but I have a
particularly annoying fan holder behind the CPU socket and am concerned
about whther the heatsink will still fit. What is the distance from
where the heatpipes are vertical and the area contacting the CPU diode
on the Thermalright SI-97? Also, what is the distance from the area
contacting the CPU diode to the other side of the heatsink? My mobo is
an Asus A7N8X E Deluxe and can probably just about fit this thing, but
the dimensions given on the Thermalright site do not help.

Any advice would be greatly appreciated (via email or in the NG).

Yours,
 
Hi,

I am considering purchasing the Thermalright SI-97, but I have a
particularly annoying fan holder behind the CPU socket and am concerned
about whther the heatsink will still fit. What is the distance from
where the heatpipes are vertical and the area contacting the CPU diode
on the Thermalright SI-97? Also, what is the distance from the area
contacting the CPU diode to the other side of the heatsink? My mobo is
an Asus A7N8X E Deluxe and can probably just about fit this thing, but
the dimensions given on the Thermalright site do not help.

Any advice would be greatly appreciated (via email or in the NG).
Click to expand...

By "fan holder" i presume you mean the northbridge heatsink.
Be glad you have it, that's an almost perfect heatsink for
nForce2 as there's no maintenance to it without fan, and
thus quiet too.

The primary downside is Asus' implementation of it,
specifically the mounting via phase-change pad. I have an
A7N8X-Dlx and when i removed that 'sink I noticed that the
pad never even melted in the center, had never even
contacted the center of the northbridge, rather only the
edges. Frankly I blame the chip foundary too, by now you'd
think they could mould the chips such that they're not
concave as it's the worst possible surface for good heat
conduction.

Anyway, the heatsink will come off. If the SI-97 isn't tall
enough you can remove the original NB 'sink and use
something else, or cut/grind/etc it down short enough. If
you don't care how pretty it looks a pair of tin snips would
even do the job.

I happen to have a different Asus board (but same NB 'sink)
sitting out in front of me right now, on it the top of the
NB 'sink sits roughly 31mm above the surface of the board.
If you can determine the measurements of the Thermalright
'sink itself you can then do the math to find out if there's
sufficient clearance. The base of the CPU heatsink will be
about 8mm above the surface of the board so distance from
(the plane of the bottom of the SI-97) to (the parallel
plane of the bottom of the overhanging portion) would need
be >= 24mm, leaving 1mm to spare for measurement error.
 
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