68030 temperature

[Frags]

My athlon palomino 2100 is slightly overclocked to 1950Mhz. it used to run at 60C idle and was noisy, now 18C on chilled water.  I always fitted fans on all my Amiga accelerators 030->060 but only the `040 ever had any heat-related instability.

[CLS2086]

It seems that you never yet get the plaisur to put a finger on a working Blizard 1230-IV/50 with a 68882 FPU @ 50 Mhz  :-D, the 030/50 next to it feel a bit cold  ;-)

[dawiper]

For cooling a 030 I would get a old northbridge cooler. You might have to cut it some to make it fit. Also a laptop style 20mm fan should be enough to move some air.

Regarding newer systems(x86). The latest p4 series require extremely much cooling. The require coolers that can handle 100w+. You don't have to go water cooling though.
The newer AMD systems(a64) however are easier to cool than the old XP series. But good cooling is always needed today.

I remeber reading somewhere(think it was tomshardware) that they tested if a modern cpu(athlon 1200mhz at the time) could handle boot without heatsink. They some laser thingy to measure the temp. 1-2 secs. after pressing the powerbutton the athlon reached 300 degr.(C) and the cpu died(probably long before it reached 300)...

[steve30]

OMG!!

I never knew they got to those sorts of temperatures. I only thought it was high end processors thatgot that hot.

Computers are going to end up replacing central heating systems soon. :-o

[coldfish]

My 030/25 overclocked to 40mhz used to operate around 15 degreed C over ambient, so about 35 on a 20 degree day which is cool.  I had fitted a small heatsink to the PLCC, stuck on with thermal glue, without it, the heat output was worrying.

If you wanted, you could scrounge an old heatpipe/heatsink/fan assembly from a laptop, many have very low profile unit that adds about 5mm to chip height.

As for running huge amount of RAM in an Amiga, I noticed access speed drop with larger sticks, I guessed it was because of additional adressing overhead?

[Hyperspeed]

I wonder if the old FPM uses more juice or creates more heat than the newer slimline EDO...

It's probably best to keep to a single SIMM if you want to keep power consumption/heat down and speed up.

The Blizzard cards throttle to 70ns if two SIMMs are used on the main board and on the SCSI card. Not sure about the PPC cards with integrated SCSI (do they have 2 slots?)