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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Bamiga2002 on November 22, 2007, 09:50:21 AM
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I was there thinking that the original Phase5 black heatsink (http://amiga.resource.cx/photos/blizzardppc-2.jpg) on the ppc is just too crap. Why? Without the metal plate fix (a small flat piece of metal under the heatsink) it's not cooling the ppc too well (not making proper contact). So, i thought: let's remove the original black heatsink and add your own solution. But what kind of solution would work and cool the poor ppc nicely? How to attach one on the ppc? Here (http://www.amiga.cz/hardware/blizzardppc603_275/blizzardppc603_275_zm.jpg) is a picture i found of the ppc without any heatsink.
Any cool thoughts please, am i making any sense here :-)?
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This is something that I'm interested in as well as I need to do it to get a BPPC that I bought working again. I was planning on using old PC heatsinks that I have but hadn't yet addressed attaching them securely.
Standard thermal paste should work just fine for ensuring good heat transfer and contact though.
Andy
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Low-profile heatsinks coming from dead pc northbridge off-board motherboards are a good choice. They are the right shape and dimensions.
Put it with a patch of thermaltake (3M heat auto-glue pads) and put the original cap over and you are in business again.
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Enzotech makes a really nice low-profile copper sink, the CNB-SL1. I dunno how hot those PPC chips get, but a copper sink with a low-noise fan might be enough.
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If going totally crazy, one could get the latest (and fastest) revision of BOTH 68060 & PPC chips, getting the old ones off and soldering them newer ones in place :-D. But where to find these chips and how much the cost??? I'd like to tune my BPPC to the max :-P !
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Be aware of the chip in the top right corner of this (http://www.amiga.cz/hardware/blizzardppc603_275/blizzardppc603_275_zm.jpg) picture, as it gets REALLY hot and needs cooling to...
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@Bamiga2002
Done much BGA soldering?
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first of l have blizzard 603+ 240 mhz 040 scsi
and freind mine who knows electronics fixed my fan.
if indoubt get somone qualifed to do this work.
u need to use termal paste as this is what tranfers
the heat to the cpu cooler .
l think standred ones are fine l ran my bbs on my machine 24/7
with no problems
u can buy new ones from amikit.
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where can you get that ultra low profile Cooler Master fan for '040?
If ppc or '040 get too hot, will A1200 freeze as some kind of warning, or the card just dies?
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Dont replace the black heatsink, just remove it and apply artic silver, then place low profile heatsinks with fans on top of the original black heatsink.
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@Piru
Erm...none. If i win in the lottery i buy the chips and send them and the card to france :-).
I think i let the original heatsink be in place for now.
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Is the little fan on the board necessary? It's making a loud noise! I got also a huge 120mm blowing right to the PPC anyway.