Blizzard PPC advice please

[amigamad]

dont use too much coolrpaste (read the manual included with the paste before use).

I coated the whole of the top of my 040 before fiting the heatsink.

[patrik]

@Radfoo:

You are right in that the 68040 is about the same size as a pentium.

An old Pentium-MMX I got here is:
49x49 mm

An old 68060 (same size as 68040) I got here is:
47x47mm


/Patrik

[cgutjahr]

@Radfoo:

My 68040@25Mhz gets *very* hot (after running for a few minutes, it's too hot to touch). I had a very small heatsink glued to it, but that fell off about a year ago. Since then, it runs fine without any colling.

The schematics for the BVision <-> VGA cable can be found here (the site is German, just go to the "BVision/CVPPC-Anschluß" pragraph).

[Karlos]

@amigamad

I put a small dollop in the middle and then spread it out by gently moving the heatsink in a gradually widening spiral motion (eliminates any air pockets)  until as much of the chip was covered and the heatsink was quite tightly attached by the grip of the heat transfer compound itself.

[Radfoo]

The schematics for the BVision <-> VGA cable can be found here (the site is German, just go to the "BVision/CVPPC-Anschluß" pragraph).

Thats should do it, thanks!

I'll have to dig out my soldering iron now  :flame:

[Radfoo]

Managed to make a BVision cable using the pinouts mentioned on this list, looks great. Thanks :-) .

Stuck a pentium heat sink on the 040, however the whole thing still seems to get very hot and it has been a little unstable :-( .

Not tried much, but not managed to get any PPC software working :-( . Is the WapOS 5 from the OS3.9 cd the latest available?

Thanks for the advice so far :-) .

[Brian Hoskins]

When I first obtained a BlizzardPPC/040 I found that my system would run for around an hour perfectly before intermmitently crashing.  I found that the 040 was getting worryingly hot (it's the 25mhz version like yours) so I simp;y installed a cheap fan which blows air onto the entire card - this is currently cable-tie fitted to my highest 5.25" bay and aims directly at the card.

Since then I've NEVER had any crashing problems relating to the 040 overheating, even on the hottest of days in the summer.  You can pick a suitable fan up at a local PC store or Maplins.

Regarding the noisey PPC fan, it's probably bunged up with muck - I take mine out and clean it once a year.  Aside from that it should be fine, it's a bit of a hassle to upgrade it, especially since the standard fan will cool it down just fine as long as it's kept clean.

Hope this helps

Brian

[CU_AMiGA]

Sort of off topic:

Is it recommended me using a fan or heatsink on the Permdia 2 chip on the Blizzardvision?

[patrik]

@CU_AMiGA:

It wont hurt, that much I can tell you, aspecially not if you are having issues with it (FUCKED UP?). Some PC card manufacturers making cards based on the Permedia 2 chip seems to think it is needed, check out the Diamond Fire GL 1000 card. Though you could always check if heat is the issue by letting a extra fan blow over the card.


Good luck!


/Patrik

[CU_AMiGA]

@patrik,

Thanks for that. No the Blizzardvision has been good and has been a massive up from AGA. :-) I just wanted to make sure that things coninue to go smoothly graphics wise. I like the Blizzardvision very much. One of my best buys infact, only £30! :-)

It is my bloody 30gig Maxtor Hard Drive that has been a bloody nuisance lately.

[Karlos]

@CU_AMiGA

The TVP4020 gets pretty damn hot. I installed a heatsink designed for a power amp on mine (same surface area, 1 inch tall vanes). In my case itself I have a spare case cooling fan mounted above the motherboard that blows air across it (close to the gfxcard).

With this arrangement, I can touch the heatsink and it is just gently warm. I was able to overclock the chip too, but the increase in performance wasnt that great so I put it back as it was.

[CU_AMiGA]

@Karlos

Is the TVP4020 part of the Permedia 2? Sorry i am not too technical really. I am really tempted to get a fan for both Blizzardvision and 060. PPC is doing just fine though. Another thing that bothers me is the power supply. Would the Amiga handle it or should i get another power box. I currently use the one from the Power Tower (250 i think).

[Karlos]

Yeah, sorry dude thats the part number for Texas Instruments implementation the Permedia2 chip. I spent so bloody long looking at tech info on it I kinda use it interchangably...

Anyhow its the low profile chip with the 3DLabs Permedia2 logo on it.

-edit-

Er, that was kinda stating the obvious there. Sorry man  I been up sice 6am yesteraday!

As for PSU, I have 350W but I dont think the drain is so high. 250 will be fine for you system. If you had a PCI board and cards to feed you may need more than 250, but as for the rest - unlikely.

[CU_AMiGA]

Okay thanks for that guys. I will have a little look. I also believe that Amiga Repair Centre can do this job as well. I may do that.

Thanks again

[Radfoo]

When I first obtained a BlizzardPPC/040 I found that my system would run for around an hour perfectly before intermmitently crashing. I found that the 040 was getting worryingly hot (it's the 25mhz version like yours) so I simp;y installed a cheap fan which blows air onto the entire card - this is currently cable-tie fitted to my highest 5.25" bay and aims directly at the card.

Think i'll have to try that, thanks :-)

Regarding the noisey PPC fan, it's probably bunged up with muck - I take mine out and clean it once a year. Aside from that it should be fine, it's a bit of a hassle to upgrade it, especially since the standard fan will cool it down just fine as long as it's kept clean.

Tried cleaning it, but it still make a racket most of the time. Discovered yesterday that when its making the horrible noise its not actualy blowing much air :-o  . So I need a new PPC fan!

[cgutjahr]

@Radfoo:

Another reason for instability could be the motherboard. My original A1200 motherboard didn´t like my BlizzPPC, the machine simply froze or crashed regularly (sometimes it worked for a few minutes, sometimes for about an hour- but it always crashed sooner or later).

I got a new A1200 motherboard and the machine works fine for 5 years now. I guess my original motherboard was lacking the famous "timing fix".