I got my Blizzard PPC, questions about cooler and idefix xpress

[balrogsoft]

Hi, i finally got my Blizzard PPC 603e with 060/50mhz, 603/240mhz, SCSI, and 96 mb of RAM. But i can try it until this weekend. The cooler wasn't fixed and i removed, then i saw the PPC, and the cooler has very few thermal paste, i use some of the paste around the processor (outside the little metal piece), and i put it on the cooler, here are the photos:

My Blizzard PPC:
http://www.balrogsoftware.com/amiga/blizzard1.jpg

PPC processor with thermal paste and the metal piece:
http://www.balrogsoftware.com/amiga/blizzard2.jpg

Then i put on the cooler some of the paste that i got around the little metal piece:
http://www.balrogsoftware.com/amiga/blizzard3.jpg

And this is the PPC processor after put cooler (i removed to see if the paste was working, and i saw on the metal piece some of the paste i put on the cooler):
http://www.balrogsoftware.com/amiga/blizzard4.jpg

It will be sufficient thermal paste? i have more, but i can get it until the weekend.

I received an IdeFix Express and a SCSI CDRW unit, i have an IdeFix Express already on my A1200, i want to put it on my A600, Gayle chip of A600 will be compatible with the express socket? and using only Idefix, without the express socket?

Thanks in advance.

[PG]

You should put a small amount thermal paste on the metal piece and only there.
You have used way too much already...

[quenthal]

Uh... better check out some instructions using thermal paste (like this one: http://www.arcticsilver.com/arctic_silver_instructions.htm). If you remove heatsink (for checking or any other reason) after applying paste, you should wipe both clean from paste beofore applying new one.

Personally I used is some Arctic Silver 5 with my CSPPC, but that stuff of yours is probably enough.

Btw., that small piece of metal is in fact the cpu-core.

[x56h34]

You only need to apply a thin layer of conductive thermal paste on the parts that touch the heatsink. In the case of 603e CPU, it's the square part in the centre of the chip. I'd remove all the paste around the centre square.

[balrogsoft]

Hi, thanks for your help, i cleaned the rest of thermal paste before apply the paste i got around the metal piece of PPC, i applied a thin layer to the cooler.

[AmigaMance]

 Do you think that it's a good idea to put a small amount of thermal paste in each of the controller chips of the BPPC? They are too small for a heatsink and the card too crammed, so i'm looking for a good way to cool them. They are getting very hot!

[Piru]

@AmigaMance

Do you think that it's a good idea to put a small amount of thermal paste in each of the controller chips of the BPPC?

Err? What would that accomplish exactly?

Thermal paste has one function: Remove the air between the chip and the heat sink to ensure good thermal conductivity (naturally the paste itself has good thermal conductivity aswell). Applying termal paste alone it does nothing useful. Common mistake is to overdo the thermal paste, you only need little drop of it (so it forms a thin layer between the surfaces).

[AmigaMance]

Yeah, it was probably just a stupid idea. I was thinking that a drop of thermal paste will act as a cheap substitute for a heatsink, nevermind. :-D
 Do you have an idea on how to cool these chips btw?

[quenthal]

@AmigaMance

Probably they run cool enough without special cooling, but if you want to be sure, but big fan somewhere near cool down the whole board.

If you really want to put some small heatsinks on those small chips, there are products for it, like this (http://www.microcool.it/english/products.html - ChipSink) - there are many kits that include small heatsinks with heat conductive tapes.

[AmigaMance]

@quenthal
 Thank you. On the contary they run hot. In the summer i can't touch them with my finger for more than 5 seconds, but a big fun and those tiny heatsinks are exactly what i need.

[Framiga]

@AmigaMance

"Do you think that it's a good idea to put a small amount of thermal paste in each of the controller chips of the BPPC?"

are you speaking about the 2 voltage regulators IC (one 8 pins and the other 3 pins) below the CPU cooler?

Its almost "normal" they go hot.

[AmigaMance]

are you speaking about the 2 voltage regulators IC (one 8 pins and the other 3 pins) below the CPU cooler?

 I'm talking about the 4 rectangle chips with the label CY7C3741. Their dimensions are about 1.5*1.5 cm. 3 of them are in the top side of the card and 1 at the bottom side, next to the CPU.

Edit: The BVision has one of these chips too. But it doesn't get so hot.

[Framiga]

a small fan blowing/moving air around, should be enough.

Take as reference only, the position of the fan on this page:

Overclocking CSPPC page

[pedro7]

If you really want to put a heatsink on small chips you could get an old 486 heatsink or something and cut little pieces off with a hacksaw. That's what I did once for a modem that got cranky in hot weather   :-)