FOP 32-1, black or silver??

holdencommodore

Golden Member
Nov 3, 2000
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I have seen the FOP 32-1 with a silver HS on a recent review. I have a FOP 32-1 and it has a black HS. On the GlobalWin site, a picture of the FOP 32-1 has a black HS. Are they the same??
 

AmbitV

Golden Member
Oct 20, 1999
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i heard the black ones are better for FC-PGA, whereas silver is better for socket A
somehow the way the heatsink is anodized affects how it's optimized for a particular cpu type
same reason why golden orb for fc-pga went to chrome for socket A
 

lenjack

Platinum Member
Oct 10, 1999
2,706
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FOP32 HS is black and has protruding ridge on mating surface that prevents proper seating of HS on socket A. FOP-32 is silvery and does not have this ridge. In theory, FOP32 is for socket 370, and FOP-32 is for socket A. In reality, if you have an FOP32, you can grind off the protruding ridge making it equivalent to FOP-32. Both use same fan, and color difference doesn't matter.
 

holdencommodore

Golden Member
Nov 3, 2000
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Hmmmm, mine has a little lip that fits over the edge of the socket. Does this mean that my supplier has tried to sell me a FOP32, calling it a Socket A HFS??!! It was a real ah heck to get it on.
I bought it from Scorptec
 

Viperoni

Lifer
Jan 4, 2000
11,084
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71
The Fop32 is the black one.
Designed for socket 370 CPU's.
HAS THE RIDGE

The Fop32-1 is the silver one (same heatsink as FOP38)
Doesn't have the ridge.
For pretty much well anything.
 

DoctorBooze

Senior member
Dec 10, 2000
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I heard AMD told cooler manufacturers not to paint their heatsinks or they wouldn't approve them for Athlon.

Odd, since if I remember what little I ever learned, using the right conductive black paint can make a heatsink dissipate slightly more heat; something to do both with being black (yes, really) and increasing the surface area. On the other hand, to get it just right you'd still want the surface in contact with the heat source (CPU) to be unpainted; there'd be better heat transfer when the two surfaces are perfectly flat. I suspect the effect is very marginal though!
 

kponds

Senior member
Dec 10, 2000
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I am only responding to this as I spoke with GlobalWin techsupport the other day on this same isue:

FOP32: is designed and approved for Intel CPU's. The heatsink is anodized (not painted) and the anodizing prvides electrical insulation per Intel's requirements. For some reason, Intel is worried about the heatsink electrically shorting to the internals of the CPU when mounted. According to the GW tech, this happens about once in several thousand CPU's. Also, the FOP32 does have a ridge on the bottom of it that the FOP32-1 does not have making it difficult to get proper alignment on AMD CPU's. He also stated that the black anodizing hurt the performance of the cooler stating that the FOP32-1 runs about 2 degrees cooler than the FOP32. I ask why as I thought the black coating would help disappate the heat (at least that what I was told). He indicated that any kind of coating hurt the performance of the cooler but if you had to coat it, coat it in black. According to him, uncoated is best.

The FOP32-1 will mount to both Intel and AMD CPU's unless you get that 1 in several thousand Intel CPU's mentioned above. AMD speced out the cooler without the coating as they wanted the extra cooling it provided. They also felt they didn't need the insulation effect of the anodzation.