ACA500 tested - Page 34

jediknight · 27 May 2016, 21:52

yes but 16bit versus 32bit , only thing that would be good for me to actually want too use an a 500 for anything serious would be loads of memory and loads of video ram other than that its crud.

i want speed and video as i would like too make some good games but its too limited with chip ram screen res , its a pity these super cool addons dont add a videocard that would be super pooper cool , 1gb ram 1gb video ram awesome not much too ask lol.

traal · 28 May 2016, 02:41

Quote:

Originally Posted by jediknight

i want speed and video as i would like too make some good games but its too limited with chip ram screen res

That's just part of the challenge. See [ Show youtube player ] of a Sega Genesis/Mega Drive game on 1977 hardware.

chiark · 31 May 2016, 10:26

Quote:

Originally Posted by traal

That's just part of the challenge. See [ Show youtube player ] of a Sega Genesis/Mega Drive game on 1977 hardware.

Agreed. I find it interesting that there's growing interest in OCS, evidenced by the number of entries for OCS productions in demoparties going up over the last few years...

jediknight · 01 June 2016, 00:11

that's just keeping everything in the dark ages , cant wait until a mega powerful fpga 1200/4000 comes out with shed loads of everything come on peeps cash waiting.

elpiloto · 25 July 2016, 08:54

hi there amigeans, some weeks ago i populated my aca500 with an almost exact siemmens chip (HYB5118165BSJ-50) to get those more 2 megs, well works great. My a500 y a 6a full ecs denise, 2mb chip ram (megachip and trapdoor remaped) indi ecs, boot selector and hxc2

TjLaZer · 26 July 2016, 18:55

Can you post up where you got the chip and other items to do this mod?

elpiloto · 26 July 2016, 22:12

Quote:

Originally Posted by TjLaZer

Can you post up where you got the chip and other items to do this mod?

Hi mate, yes of course, the ram chip and the caps were taken from an ancient Seagate Elite SCSI drive, those disks have two of them.
Remember Jens advise about this, it worked for me but .... is at our own risk!

cheers

TjLaZer · 27 July 2016, 23:23

SCSI hard drive has 4 megabytes of RAM on it? Ok thanks

elpiloto · 27 July 2016, 23:38

Quote:

Originally Posted by TjLaZer

SCSI hard drive has 4 megabytes of RAM on it? Ok thanks

That one yes, was some kind of enterprise storage i think, is a really big disk, was made on something about 93/96, 40gb, 14 platters and 28 heads, so yes, they had a 4mb buffer

elpiloto · 27 July 2016, 23:40

and there you can see where both chips were located

Photon · 19 August 2016, 19:53

Cool, the cables are only for extra juice for the PPC? Did you have to do anything beyond soldering RAM either side/what does the underside look like?

[ Show youtube player ]

elpiloto · 19 August 2016, 22:58

Quote:

Originally Posted by Photon

Cool, the cables are only for extra juice for the PPC? Did you have to do anything beyond soldering RAM either side/what does the underside look like?

[ Show youtube player ]

Hi there Photon, those cables delivers the ACA500 CFs activity to the A500 leds that are on the other side of my A500, need to rewire them in a better way i know, but no time for that now. Im using a 450W atx psu so no power problems.
About the ACA500 4megs, obviously the aca500 was designed to work (as default or as an optional add) with 4mb , you dont need to solder wires, or put jumpers, just populate the missing parts, the ram chip and 3 filtters (U12, C28, C29 and C30) nothing more is neded, power it up and youll have your aca500 4mb.
Some pics here http://blog.elpilotohernan.com.ar/?p=2016
The other side (the underside) of my aca500 is virgin, theres nothing special, added or moded on it.

Doda · 21 August 2016, 13:47

4MB upgrade doesn't have to work in all Amigas, with several CF cards and it can be unstable. It's the reason why Jens has decided to release only 2MB version.

Schoenfeld · 21 August 2016, 15:39

Quote:

Originally Posted by Doda

4MB upgrade doesn't have to work in all Amigas, with several CF cards and it can be unstable. It's the reason why Jens has decided to release only 2MB version.

No need to repeat that - these people just know better, don't you understand?

J

elpiloto · 21 August 2016, 19:06

Well i knew all the potentiall issues, i follow this thread seens it exists, i toke the risk, did the trick, and it worked ok for me, of cours could be problems in an other a500, im not sayng hey, look, go there and all of you do this on this way, no no, im just showing what i did, for my only own purpose.

25 July 2016, 08:54	#665
elpiloto Registered User Join Date: Dec 2010 Location: Buenos Aires / Argentina Posts: 78	hi there amigeans, some weeks ago i populated my aca500 with an almost exact siemmens chip (HYB5118165BSJ-50) to get those more 2 megs, well works great. My a500 y a 6a full ecs denise, 2mb chip ram (megachip and trapdoor remaped) indi ecs, boot selector and hxc2 Attached Thumbnails Last edited by elpiloto; 25 July 2016 at 08:55. Reason: error

27 July 2016, 23:40	#670
elpiloto Registered User Join Date: Dec 2010 Location: Buenos Aires / Argentina Posts: 78	and there you can see where both chips were located Attached Thumbnails

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27 May 2016, 21:52	#661
jediknight Registered User Join Date: Feb 2016 Location: bolton Posts: 145	yes but 16bit versus 32bit , only thing that would be good for me to actually want too use an a 500 for anything serious would be loads of memory and loads of video ram other than that its crud. i want speed and video as i would like too make some good games but its too limited with chip ram screen res , its a pity these super cool addons dont add a videocard that would be super pooper cool , 1gb ram 1gb video ram awesome not much too ask lol.

01 June 2016, 00:11	#664
jediknight Registered User Join Date: Feb 2016 Location: bolton Posts: 145	that's just keeping everything in the dark ages , cant wait until a mega powerful fpga 1200/4000 comes out with shed loads of everything come on peeps cash waiting.

26 July 2016, 18:55	#666
TjLaZer Registered User Join Date: Sep 2004 Location: Tacoma, WA USA Age: 52 Posts: 1,915	Can you post up where you got the chip and other items to do this mod?

27 July 2016, 23:23	#668
TjLaZer Registered User Join Date: Sep 2004 Location: Tacoma, WA USA Age: 52 Posts: 1,915	SCSI hard drive has 4 megabytes of RAM on it? Ok thanks

19 August 2016, 19:53	#671
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	Cool, the cables are only for extra juice for the PPC? Did you have to do anything beyond soldering RAM either side/what does the underside look like? [ Show youtube player ]

21 August 2016, 13:47	#673
Doda Registered User Join Date: Dec 2014 Location: Prague Posts: 25	4MB upgrade doesn't have to work in all Amigas, with several CF cards and it can be unstable. It's the reason why Jens has decided to release only 2MB version.

21 August 2016, 19:06	#675
elpiloto Registered User Join Date: Dec 2010 Location: Buenos Aires / Argentina Posts: 78	Well i knew all the potentiall issues, i follow this thread seens it exists, i toke the risk, did the trick, and it worked ok for me, of cours could be problems in an other a500, im not sayng hey, look, go there and all of you do this on this way, no no, im just showing what i did, for my only own purpose.

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