![]() |
![]() |
#1 |
Targ Explorer
|
Phase 5 603e+ 040 25mhz 160mhz PPC board
|
![]() |
![]() |
#2 |
Junior Member
Join Date: Sep 2001
Location: No(R)Way
Age: 42
Posts: 3,222
|
When i look at my bppc 040/603+ i can see two osciilators, seems like its missings from yours..
|
![]() |
![]() |
#3 |
.
Join Date: Oct 2004
Location: Ioannina/Greece
Posts: 5,040
|
there are BPPC's with only one osc...
better wait for DJBASE or PM him to be sure... or Alexh... |
![]() |
![]() |
#4 |
Junior Member
Join Date: Sep 2001
Location: No(R)Way
Age: 42
Posts: 3,222
|
yeah, i have only seen mine so
![]() |
![]() |
![]() |
#5 |
Amiga is my Religion
Join Date: May 2005
Location: Germany
Posts: 578
|
Right, some BPPC have only 1 oscillator (mostly the small version with 166/175 MHz PPC).
|
![]() |
![]() |
#6 |
Targ Explorer
|
yes my BPPC is 175mhz scsi version
|
![]() |
![]() |
#7 |
Longplayer
|
with just one, the ppc will share the same bus speed as 68k. with two you can have independant bus speeds.
|
![]() |
![]() |
#8 |
Targ Explorer
|
AFAIK the 040 needs an oscillator at 2x desired cpu clock speed. in my case my 25mhz 040 has a 50mhz oscillator. Does this mean my 175mhz PPC has a multiplier of 3.5?
|
![]() |
![]() |
#9 |
Amiga is my Religion
Join Date: May 2005
Location: Germany
Posts: 578
|
Yes, it has.
|
![]() |
![]() |
#10 |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,448
|
Details about Blizzard PPC Multipliers
http://xoomer.alice.it/giorsign/ppc.html Other people also talk about a 175MHz being a 3.5 multiplier http://groups.google.co.uk/group/com...9aaf395cfe6d88 Last edited by alexh; 12 January 2007 at 17:30. |
![]() |
![]() |
#11 |
Targ Explorer
|
theoretically changing the Oscillator to a 57mhz one I would get an 040 running at 28.5mhz and PPC running at 199.5mhz - with extra cooling of course.
Or would it be more a case of adjusting the solders pads to increase the multiplier? Do I run the risk of messing up the SCSI timings? Or worse killing my card.... I see that Alexh link says no to SCSI timing issues, but I have heard different from other people.... Anyone have any experience trying this? I am also aware of the rarity of ALL things Amiga. I would likely be better off leaving the card well alone... UNLESS the speed increase would be significant. Also £120 would get the card upgraded to 060 by JJB in France.... Decisions decisions lol |
![]() |
![]() |
#12 |
Longplayer
|
afaik, the scsi clock is tied to the 68k oscillator as well as the mini pci bus. As long as you dont go above 66, then it should be ok. changing or adding the ppc oscillator does only effect the ppc.
it should be noted the the 175ppc is an overclocked 160 |
![]() |
![]() |
#13 | |
Targ Explorer
|
Quote:
Has anyone here had an 040 BPPC upgraded to an 060 by JJB? Is it a stable solution (SCSI etc)? Is the upgraded card then identical in function as a native 060 BPPC? Many thanks? |
|
![]() |
![]() |
#14 |
Targ Explorer
|
Hi all, as mention before, my BPPC has only one oscillator. It is 50mhz and controls the speed of the 68040. The PPC does not have its own oscillator. It runs on a multiplier of 3.5. (pic in first post)
PPC overclocking link http://zap.to/ppcoverclock My question is if I added another 50mhz oscillator to the empty oscillator socket (which is there to control the PPC on faster boards than mine) would this then keep the BPPC at 50mhz x 3.5 (175mhz) and then allow me to change the 68040 to a 68060 with the potential to change the 68k oscillator to one of a higher Mhz rating for later 68060 overclocking. I know that I can get an 060 fitted and simply keep it running at 50mhz Thanks.... |
![]() |
![]() |
#15 |
.
Join Date: Oct 2004
Location: Ioannina/Greece
Posts: 5,040
|
I bet DJBase will know...
|
![]() |
![]() |
#16 |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,448
|
You cannot just "fit" an 060. The board needs several hard mods.
|
![]() |
![]() |
#17 | |
Targ Explorer
|
Quote:
The issues we have are, is what I ask above possible on this particular BPPC? |
|
![]() |
![]() |
#18 | |
Amiga is my Religion
Join Date: May 2005
Location: Germany
Posts: 578
|
Quote:
|
|
![]() |
![]() |
#19 |
Monochrome and 8 bit
Join Date: Nov 2004
Location: Underbarrow, Gods Country
Age: 57
Posts: 600
|
http://members.iinet.net.au/~davem2/amiga.html
For some related info, althoughnot specifc to your model :-( |
![]() |
![]() |
#20 |
Targ Explorer
|
Some excellent pointers there guys! Many thanks
![]() I just got this reply from the webmaster of the BPPC overclocking site... Your bppc has probably been modified as most of the bppc come with two oscillators. Or it may be one of the last models where they may have for economical reasons took away one of the oscillators. -yes you can put a second oscillator, the board should already have the space for the second one. Remove eventual wiring that go fromthe first oscillator to the pinholes of the second. Good luck... GS It sounds promising! I dont recall any wiring, will have to take my tower apart and check... |
![]() |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
BlizzardPPC 040/25MHz 603/160MHz | hex | support.Hardware | 10 | 20 December 2010 23:37 |
How much is a Blizzard PPC 603e+ (240mhz+040 at 25mhz) w/ SCSI + 80MB ram worth? | gulliver | MarketPlace | 1 | 01 August 2010 19:31 |
Wanted: Blizzard PPC in lowest config: 040LC@25MHz PPC@160MHz no SCSI | stachu100 | MarketPlace | 1 | 08 May 2010 07:43 |
Sale: Phase 5 Blizzard PPC 603e+ 68040/25 PPC 240 Mhz | wizard66 | MarketPlace | 6 | 09 February 2007 17:34 |
Blizzard PPC 040/25 + PPC 603 @160mhz + SCSI + BVision | BippyM | MarketPlace | 14 | 04 August 2006 12:42 |
|
|