Hi all,
I've just got a Blizzard 030/50hz accelerator for my Amiga 1200, it has a fan on the underside which is just glued onto the chipboard behind the processor.
Has anyone ever come across anything like that before? It doesn't have a heatsink on it, just a fan.
I bought the accelerator of someone who said it was already there when he bought it, so I don't know if the chip was overheating and put on there to stop it, or if it was just placed on there to prolong it's life.
I was thinking of trying to get some kind of a heatsink/fan combo, something maybe that's used on a PC Motherboard Chipset and sticking it with heat conductive thermal pad directly onto the chip facing toward the trapdoor, and leaving the trapdoor off and raising the Amiga slightly to let the air get to it.
The current fan is soldered onto the accelerator, and the Amiga 1200 has an A600 PSU, because apparently they're better equiped to cope with extra components etc.
Anyone ever tried a passive heatsink? I wasn't sure if that would work since there's gonna be no air moving through the Amiga.
I'd say the fan was fitted to prolong the cpu's life, like you said. A heatsink alone (attached via thermal adhesive tape) would be perfectly fine though, as fans generate unwanted noise, and most people with 030 cards won't bother with either.
As for the PSU... there's no such thing as an A1200 PSU. AFAIK, all A1200's came with "A600" PSU's or "A300" PSU's. There's a 4.5A version of the A500 PSU if you can find one (look on ebay or amibay). Some Amiga PSU's won't even run an expanded Amiga (the heavy A600 PSU type for example).
