1260@100mhz

roy bates · 17 April 2011, 21:03

i would like to know if anyone managed to get an apollo 1260 to run at 100mhz and be stable btw. this is full cpu

rkauer · 18 April 2011, 05:07

Stachu100 did some tests on several Apollo A1260 boards. Maximum stable operation was @80MHz.

Damion · 18 April 2011, 06:18

Mine ran at 100MHz only without RAM. Much beyond 80 was a no-go, even with 50ns RAM. 80MHz is flawless, no esoteric SIMMs required.

roy bates · 18 April 2011, 07:36

mine runs at 100 mhz with ram and its stable 132.82 mips max.
if anyone wants to try this ile tell them how to do it and why it dont work

cosmicfrog · 18 April 2011, 09:07

as usual pics or it did`t happen

roy bates · 18 April 2011, 09:08

here are the parts needed for this mod
1: cpu mc68060 rev 6
2: crystal oscillator at 100mhz
3: heatsink and fan (486 or 586 is a good idea)
4: atx power supply between 350 and 400 watts

as you can probably see this is acheivable and its a good idea to bypass the regulator on the card altogether as it will put a lot of load on the motherboard

roy bates · 18 April 2011, 10:16

right the pictures are in my profile sorry for the bad photos i use my phone lol!!
there under albums enjoy btw i dont know how to move them here but enjoy

wizard66 · 18 April 2011, 10:22

WOW !! looks like this baby is flying ;-)

roy bates · 18 April 2011, 10:41

Quote:

Originally Posted by wizard66

WOW !! looks like this baby is flying ;-)

i hope that peaple see this and try it out

i dont want to be the only one that did this

stachu100 · 18 April 2011, 11:16

I was trying on 2 Apollo 1260 with MC68060RC50 rev6 cpu's and max was 80MHz. When 100MHz oscillator was inserted I've had just "black screen". 80MHz inserted back and everything was working again. CPU's itself were tested at 106MHz on Blizzard 1260, so for sure it was Apollo fault having "no go" @100MHz.
I suspect that it's depend on particular MACH chip. If you are lucky - your card will work @100MHz. if not (like me) 80MHz is max what you can get.

roy bates · 18 April 2011, 11:51

Quote:

Originally Posted by stachu100

I was trying on 2 Apollo 1260 with MC68060RC50 rev6 cpu's and max was 80MHz. When 100MHz oscillator was inserted I've had just "black screen". 80MHz inserted back and everything was working again. CPU's itself were tested at 106MHz on Blizzard 1260, so for sure it was Apollo fault having "no go" @100MHz.
I suspect that it's depend on particular MACH chip. If you are lucky - your card will work @100MHz. if not (like me) 80MHz is max what you can get.

hi i had the same problem if you can try it with a atx power supply it will get more amps. btw if you try this in a desktop be sure to run a line from the 5 volt line to the regulators 5 volt input or do away with the regulator and run the 3.3 volts line from the atx to the card direct .trust me it will suppries you

stachu100 · 18 April 2011, 12:07

Ok, I will try this and let everyone's know.

roy bates · 18 April 2011, 12:48

what i am trying to say is the card is looking for amps it cant get.
have a go stachu100 and see for yourself what happens

right i have added a picture of the card itself it will probably make sense when you see it.
please note the heat sink and fan and the wires that bypass the regulator have fun.

cosmicfrog · 18 April 2011, 14:33

corrr + Ribbits =

roy bates · 18 April 2011, 15:51

just out of interest:i got most of the gear to do this off ebay from peaple selling there amiga gear,i have been out of this scene for over 10+ years .i would like to say hi to everyone .

fitzsteve · 18 April 2011, 15:53

Quote:

Originally Posted by roy bates

just out of interest:i got most of the gear to do this off ebay from peaple selling there amiga gear,i have been out of this scene for over 10+ years .i would like to say hi to everyone .

Welcome back to the scene - Amibay is a great place to buy and sell

roy bates · 18 April 2011, 16:12

thank you its great to be back

roy bates · 18 April 2011, 22:39

fitzsteve:have you still got that tower?.veery niiice.
ive got to ask did you get the cv64 3d working?

fitzsteve · 18 April 2011, 22:43

Quote:

Originally Posted by roy bates

fitzsteve:have you still got that tower?.veery niiice.
ive got to ask did you get the cv64 3d working?

Hi!

No I didn't get it to work with the Z3i Busboard - I got rid of the Z3i and went Mediator/Voodoo 5 instead

And yeah I still have this beast, sporting Blizzy PPC upgraded to 060 @72mhz and PPC 330mhz

Steve.

roy bates · 19 April 2011, 08:12

Quote:

Originally Posted by fitzsteve

Hi!

No I didn't get it to work with the Z3i Busboard - I got rid of the Z3i and went Mediator/Voodoo 5 instead

And yeah I still have this beast, sporting Blizzy PPC upgraded to 060 @72mhz and PPC 330mhz

Steve.

oh yes very nice.do you notice any bottleneck in throughput in the mediator to the voodoo? i would be interested in your views on this.

17 April 2011, 21:03	#1
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	1260@100mhz i would like to know if anyone managed to get an apollo 1260 to run at 100mhz and be stable btw. this is full cpu

18 April 2011, 09:08	#6
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	apollo 1260@100mhz here are the parts needed for this mod 1: cpu mc68060 rev 6 2: crystal oscillator at 100mhz 3: heatsink and fan (486 or 586 is a good idea) 4: atx power supply between 350 and 400 watts as you can probably see this is acheivable and its a good idea to bypass the regulator on the card altogether as it will put a lot of load on the motherboard

18 April 2011, 10:22	#8
wizard66 FPGA Replay inside A590 Join Date: Sep 2004 Location: Rotterdam/Netherlands Age: 58 Posts: 294	WOW !! looks like this baby is flying ;-) Last edited by wizard66; 18 April 2011 at 10:28.

18 April 2011, 12:48	#13
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	what i am trying to say is the card is looking for amps it cant get. have a go stachu100 and see for yourself what happens right i have added a picture of the card itself it will probably make sense when you see it. please note the heat sink and fan and the wires that bypass the regulator have fun. Last edited by TCD; 18 April 2011 at 12:48. Reason: Back-to-back posts merged. Use the edit function.

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18 April 2011, 05:07	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	Stachu100 did some tests on several Apollo A1260 boards. Maximum stable operation was @80MHz.

18 April 2011, 06:18	#3
Damion Registered User Join Date: Mar 2008 Location: US Posts: 319	Mine ran at 100MHz only without RAM. Much beyond 80 was a no-go, even with 50ns RAM. 80MHz is flawless, no esoteric SIMMs required.

18 April 2011, 07:36	#4
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	mine runs at 100 mhz with ram and its stable 132.82 mips max. if anyone wants to try this ile tell them how to do it and why it dont work

18 April 2011, 09:07	#5
cosmicfrog The 1 who ribbits Join Date: Apr 2006 Location: leek, Staffs, UK Age: 56 Posts: 3,557	as usual pics or it did`t happen

18 April 2011, 10:16	#7
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	right the pictures are in my profile sorry for the bad photos i use my phone lol!! there under albums enjoy btw i dont know how to move them here but enjoy

18 April 2011, 11:16	#10
stachu100 Registered User Join Date: Mar 2009 Location: Poland Posts: 339	I was trying on 2 Apollo 1260 with MC68060RC50 rev6 cpu's and max was 80MHz. When 100MHz oscillator was inserted I've had just "black screen". 80MHz inserted back and everything was working again. CPU's itself were tested at 106MHz on Blizzard 1260, so for sure it was Apollo fault having "no go" @100MHz. I suspect that it's depend on particular MACH chip. If you are lucky - your card will work @100MHz. if not (like me) 80MHz is max what you can get.

18 April 2011, 12:07	#12
stachu100 Registered User Join Date: Mar 2009 Location: Poland Posts: 339	Ok, I will try this and let everyone's know.

18 April 2011, 14:33	#14
cosmicfrog The 1 who ribbits Join Date: Apr 2006 Location: leek, Staffs, UK Age: 56 Posts: 3,557	corrr + Ribbits =

18 April 2011, 15:51	#15
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	just out of interest:i got most of the gear to do this off ebay from peaple selling there amiga gear,i have been out of this scene for over 10+ years .i would like to say hi to everyone .

18 April 2011, 16:12	#17
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	thank you its great to be back

18 April 2011, 22:39	#18
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	fitzsteve:have you still got that tower?.veery niiice. ive got to ask did you get the cv64 3d working?

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