CSSPPC v1 72MHz - Loosing 6MB

[highpuff]

Hi All,

While I swapped my 060 CPU to a Freescale 060 with the 71E41J mask. While doing that I decided to test to increase the speed of the 060 to 72MHz.

The upgrade is done by moving a small jumper on the board that tells the CSPPC board to use a third oscillator for the 060. After that was done I installed a 72MHz oscillator in the empty place of the third oscillator.

At first the card did not boot at all but after some troubleshooting I found that one pair of modules did not cope with the new speed. Bought 12 working 32MB EDO modules from eBay that I now use and they do work very good.

Now to the strange part...

Everything seems to run just fine. I have tested demos, applications, games and just letting the computer work/idle for longer periods.

When I do a test with SysInfo 4.0 it shows really good numbers, both speed and drives. But...

When I try WhichAmiga 1.3.25 I tend to loose around 6MB of fastmemory. This does also occur with SysSpeed but not with WhichAmiga 1.3.3. See logs below.

WhichAmiga 1.3.3:

6.WORK:MemChk/WhichAmiga> avail
Type Available In-Use Maximum Largest
chip 2041760 39008 2080768 1968808
fast 126397056 7296384 133693440 125720288
total 128438816 7335392 135774208 125720288
6.WORK:MemChk/WhichAmiga> dh1:MemChk/WhichAmiga/WhichAmiga
WhichAmiga 1.3.3 (2.5.99)
Written by Harry "Piru" Sintonen. Copyright © 1995-1999 PitPlane Productions.

Evaluating system...
Central Processing Unit: MC68060 72.0 MHz (rev 6)
Floating Point Unit: 68060fpu
Memory Management Unit: 68060mmu running
Custom graphics chip: AGA Lisa 4203 (rev 0)
Custom animation chip: AGA PAL Alice 8374, rev 3-4
Other custom chip(s): Paula 8364 (rev 0), Ramsey (rev 15), Gary (rev 0)
Graphics system: CyberGraphX
Graphics board(s): CyberVision PPC
Hardware Clock: clock found
Max. Chipmem available: 2032 K
Max. Fastmem available: 130560 K
ROM chip version: 40.68 (Kickstart 3.1)
ReKicked ROM, version: 45.57 (Kickstart unknown)
Workbench version: 45.3 (Workbench unknown)
SetPatch version: 44.38
Expansion board(s):
4626/100: Individual Computers Unknown Prod.ID #100 (@$40000000 64k)
8512/100: Phase 5 Digital Products CyberStorm PPC/MK III SCSI (@$00F01060 128k)

Your computer is an Amiga 4000.
6.WORK:MemChk/WhichAmiga> avail
Type Available In-Use Maximum Largest
chip 2041760 39008 2080768 1968808
fast 126394992 7298448 133693440 125720288
total 128436752 7337456 135774208 125720288
6.WORK:MemChk/WhichAmiga>

WhichAmiga 1.3.25:

New Shell process 6
6.SYSTEM:> avail
Type Available In-Use Maximum Largest
chip 2042000 38768 2080768 1968808
fast 126791968 6901472 133693440 125720288
total 128833968 6940240 135774208 125720288
6.SYSTEM:> c:whichamiga
WhichAmiga 1.3.25 (7.02.07)
Written by Harry "Piru" Sintonen. Copyright © 1995-2007 Harry Sintonen.

Evaluating system...
Central Processing Unit: MC68060 72.0 MHz (rev 6)
1 WarpUP Processor(s): PPC 604e 200 MHz (rev 2.4), 66 MHz busclock
Floating Point Unit: 68060fpu 72.0 MHz
Memory Management Unit: 68060mmu running
Custom graphics chip: AGA Lisa 4203
Custom animation chip: AGA PAL Alice 8374 2M (rev 3-4)
Other custom chip(s): Paula 8364 (rev 0), Ramsey (rev 15), Gary (rev 0)
Graphics system: CyberGraphX V4
Graphics board(s): CyberVision PPC
Hardware Clock: clock + battmem found, saturday 01-aug-2015 11:34:31
Max. Chipmem available: 2032 K
Max. Fastmem available: 130560 K
ROM chip version: 40.68 (Kickstart 3.1)
ReKicked ROM, version: 45.57 (Kickstart 3.9)
Workbench version: 45.3 (Workbench 3.9)
SetPatch version: 44.38
Expansion board(s):
4626/100: Individual Computers Unknown Prod.ID #100 (@$40000000 64k)
8512/100: Phase 5 Digital Products CyberStorm PPC/MK III SCSI (@$00F01060 128k)
Cyberstorm PPC serial # DCA0013 (board version 1)

Your computer is an Amiga 4000.
6.SYSTEM:> avail
Type Available In-Use Maximum Largest
chip 2042000 38768 2080768 1968808
fast 120898584 12794856 133693440 120056024
total 122940584 12833624 135774208 120056024
6.SYSTEM:>

Doing a "avail flush" does not work. I have also tried with several applications without success. When the 6MB is gone, it is gone...

I know that many have had issues with 72MHz on a CSPPC version 1, but I don't experience it as unstable. I will give it a go for a few days or a week then I might downgrade it to 66MHz instead.

[Jope]

My guess is that because WhichAmiga is very buggy, you have encountered one of its bugs.. If you don't see the RAM disappearing after other sw, then it is nothing to be worried about.

[highpuff]

I found that it was related to PowerPC.library. I'm using the version that is provided via WarpUP_V51Upd.lha (16.1 I believe).