[Paula chip] 8364R7 vs. 8364R7PD

8bitbubsy · 01 January 2011, 02:42

My A500 has an 8364R7, but a friend of mine gave me all the chips from his broken A500+... Is it worth putting some of them in my A500?

The A500+ Paula chip I got has the PD suffix at the end, is this one better in any way? Less interference??

My A500 chips have the '89 datecode while the A500+ chips have '91. Do you think the '91 ones are more reliable? I'll keep the '89 Denise for compatiblity, and the A500+ Fat Agnus has a different pinout.

rkauer · 01 January 2011, 19:14

The newest Denise have the extra half-bright screenmodes, it does not clash with anything (games & other software included).

Different Paula versions doesn't have anything really different but the code label, that's the only chip that never changed from the A1000 era to the last A4000T!

The Fatter Agnus may be used if you buy a NTSC MegAchip, so you can replace that Agnus to your PAL unit.

Jope · 01 January 2011, 21:14

EHB was already implemented by the time the PAL version of the A1000 made the market. The A500+ super denise has higher refresh rates available, but EHB is available in every single A500 and A2000.

alexh · 01 January 2011, 21:26

Quote:

Originally Posted by 8bitbubsy

a friend of mine gave me all the chips from his broken A500+... Is it worth putting some of them in my A500?

Nope.

As has already been said, you might be able to use/sell the 2Mbyte Fat Agnus chip for use with a Mini Megi/MegAChip.

rkauer · 01 January 2011, 21:46

Quote:

Originally Posted by Jope

EHB was already implemented by the time the PAL version of the A1000 made the market. The A500+ super denise has higher refresh rates available, but EHB is available in every single A500 and A2000.

Are you sure? I was told that only the ECS Denise can handle 64 colours on the screen.

StingRay · 02 January 2011, 12:32

Quote:

Originally Posted by rkauer

Are you sure? I was told that only the ECS Denise can handle 64 colours on the screen.

Then someone told you nonsense. EHB is not an ECS feature, only the very first NTSC A1000's lack the EHB mode.

pandy71 · 02 January 2011, 14:38

Quote:

Originally Posted by rkauer

Are you sure? I was told that only the ECS Denise can handle 64 colours on the screen.

ECS Denise support SHires, some genlock stuff etc, all OCS are EHB and HAM capable.

The lesser-known Initial Chip Set (ICS) mystery

01 January 2011, 02:42	#1
8bitbubsy ProTracker Nerd Join Date: Sep 2009 Location: Norway Age: 23 Posts: 1,126	[Paula chip] 8364R7 vs. 8364R7PD My A500 has an 8364R7, but a friend of mine gave me all the chips from his broken A500+... Is it worth putting some of them in my A500? The A500+ Paula chip I got has the PD suffix at the end, is this one better in any way? Less interference?? My A500 chips have the '89 datecode while the A500+ chips have '91. Do you think the '91 ones are more reliable? I'll keep the '89 Denise for compatiblity, and the A500+ Fat Agnus has a different pinout. __________________ Amiga 4000 rev B [040 25MHz - 16MB fast RAM - 2MB chip RAM - kick 3.1 - Picasso IV] Amiga 2000 rev 4.5 [030 25MHz - 8MB fast RAM - 2MB chip RAM - kick 3.1] Amiga 1200 rev 2B [030 50MHz - 16MB fast RAM - 2MB chip RAM - kick 3.1]

01 January 2011, 19:14	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 47 Posts: 3,477	The newest Denise have the extra half-bright screenmodes, it does not clash with anything (games & other software included). Different Paula versions doesn't have anything really different but the code label, that's the only chip that never changed from the A1000 era to the last A4000T! The Fatter Agnus may be used if you buy a NTSC MegAchip, so you can replace that Agnus to your PAL unit. __________________ Amigan since 1989 Known drunk since 1982 (don't know quite well, I was drunk) 13 Amigas at home Finally a Z3 one! I'll stick with 'Cachaça do Inter' for this week: Chivas gives headaches! :D

01 January 2011, 21:14	#3
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 32 Posts: 4,067	EHB was already implemented by the time the PAL version of the A1000 made the market. The A500+ super denise has higher refresh rates available, but EHB is available in every single A500 and A2000. __________________ The X-Copy shrine!

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