Boobip.com trapdoor board with gary adapter and a rev 3 TF530

CRP · 29 November 2018, 20:02

I have an A500 rev 6A. I installed a trapdoor memory expansion from boobip.com with gary adapter and a rev 3 TF530 clocked at 25 MHz.
In order to get it working with all the memory I used a combination of jeds: the RC for the bus, and the latest beta (I believe it was dated Nov. 4) for the RAM. This way I have 1MB of chip ram, 1.5MB of slow ram and 2MB of fast ram.

sysinfo says I have 4693 dhrystones, as fast as a stock A3000. Chip speed vs A600: 2.76
IDE speed is a tad slow (and became slower with the new ram jed), at approx 900kB/sec.
System is very stable, no problems at all.

SukkoPera · 29 November 2018, 21:45

Are you sure it is stable? With 1.5MB my system also *seems* stable but, for instance, Lotus II (through whdload) crashes at startup, while it works perfectly with 1 MB. Thus I guess failures can be very subtle.

CRP · 29 November 2018, 21:52

Tried it right now, works fine. Do you have any other tests?

SukkoPera · 29 November 2018, 22:10

No, I guess you're lucky

. I have a rev.2 BTW.

8 Bit Dreams · 02 December 2018, 20:00

Quote:

Originally Posted by CRP

I have an A500 rev 6A. I installed a trapdoor memory expansion from boobip.com with gary adapter and a rev 3 TF530 clocked at 25 MHz...

Quote:

Originally Posted by SukkoPera

No, I guess you're lucky

. I have a rev.2 BTW.

do not mix up these two expansions!
CRP was talking about one from boobip.com, not from PeteAU mentioned in this thread..

SukkoPera · 02 December 2018, 21:46

Argh, I missed that bit, but then... Why is he posting in this thread?

Jope · 03 December 2018, 06:30

Thread split

29 November 2018, 20:02	#1
CRP Registered User Join Date: May 2018 Location: Milano Posts: 59	Boobip.com trapdoor board with gary adapter and a rev 3 TF530 I have an A500 rev 6A. I installed a trapdoor memory expansion from boobip.com with gary adapter and a rev 3 TF530 clocked at 25 MHz. In order to get it working with all the memory I used a combination of jeds: the RC for the bus, and the latest beta (I believe it was dated Nov. 4) for the RAM. This way I have 1MB of chip ram, 1.5MB of slow ram and 2MB of fast ram. sysinfo says I have 4693 dhrystones, as fast as a stock A3000. Chip speed vs A600: 2.76 IDE speed is a tad slow (and became slower with the new ram jed), at approx 900kB/sec. System is very stable, no problems at all.

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29 November 2018, 21:45	#2
SukkoPera Mighty Pirate Join Date: Dec 2017 Location: On the borderline Age: 44 Posts: 177	Are you sure it is stable? With 1.5MB my system also seems stable but, for instance, Lotus II (through whdload) crashes at startup, while it works perfectly with 1 MB. Thus I guess failures can be very subtle.

29 November 2018, 21:52	#3
CRP Registered User Join Date: May 2018 Location: Milano Posts: 59	Tried it right now, works fine. Do you have any other tests?

29 November 2018, 22:10	#4
SukkoPera Mighty Pirate Join Date: Dec 2017 Location: On the borderline Age: 44 Posts: 177	No, I guess you're lucky . I have a rev.2 BTW.

02 December 2018, 21:46	#6
SukkoPera Mighty Pirate Join Date: Dec 2017 Location: On the borderline Age: 44 Posts: 177	Argh, I missed that bit, but then... Why is he posting in this thread?

03 December 2018, 06:30	#7
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,911	Thread split

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