From A2wikiNavigaton History: RAM Cards [edit] Apple II RAM Cards[edit] Apple IIgsMemory Expansion Cards for the Apple IIgs will ONLY work in a IIgs Memory Expansion Slot. These are for the most part, compatible with either the ROM 00/01 or 3 motherboards, with some exception on early Applied Engineering IIgs Specific cards prior to Rev. C. [edit] Apple IIgs Ram Card ExamplesThe following is a description of the types of cards and what the limitations are. [edit] Apple IIgs Cards that use 41256 - 256K( x 1) - 16 Pin DIPs8 Chips make one bank of 256K
[edit] Apple IIgs Cards that use 44256 - 1024K (256K x 4) - 20 Pin DIPs8 Chips make one bank of 1024K, as 256K x 4 each.
[edit] Apple IIgs Cards that use 41024 - 1024K(x 1)8 Chips make one bank of 1024K
[edit] Apple IIgs Cards that use 1024K (1 Meg) SIMMsSIMMs for Apple products are 'x 8' but can be 'x 9'. 2 and 3 chip SIMMs are generally incompatible.
[edit] Apple //e RAM Expansion InformationMemory Expansion cards for the Apple //e can be for the Auxiliary Expansion Slot and these will only work with a //e, or clone, or they could be the Slot 1-7 type, also known as Slinky Cards. See below. [edit] Apple //e RAM Cards ExplainedThe 'Extended 80 Column Card' This is the most common memory expansion the //e has. It consists of an additional 64K added to the Apple //e. It is many times incorrectly called a '128K card', it is not. What it does is, when added to the Apple //e, the total memory available to most programs increases to 128K. 70% of all //e specific software knows how to use this card, where-as 15% of //e specific software knows 'about' any memory past the 128K. AppleWorks 3.0 & Publish-It 4 are two examples of programs that require ATLEAST 128K but will use more memory if it is available. When a program says "Requires 128K" This is the card you need to make that run. Also, newer programs required an enhanced //e as well. This is not the same. In addition to the 80 col/64K card, an enhancement kit may be required. [edit] Apple //e Ram Card ExamplesThese Cards are for the //e ONLY. All Cards mentioned under this header are installed in the Apple //e Auxiliary Slot. The following is a description of the types of cards and what the limitations are. [edit] Apple //e Cards that use 4164 - 64K( x 1) - 16 Pin DIPs8 Chips make one bank of 64K
[edit] Apple //e Cards that use 41256 - 256K( x 1) - 16 Pin DIPs8 Chips make one bank of 256K
[edit] Apple //e Cards that use 41024 - 1024K( x 1)8 Chips make one bank of 1024K
[edit] Apple ][+ / Slot 1-7Cards for the Apple ][+ will work in a //e or IIgs as well, are usually known as 'slinky' (slot 1-7) RAM Cards and will not function the same as RAM cards for the RAM expansion connectors, meaning they will not be seen by the system as available RAM. Only on an individual software level will they be recognized.
[edit] Apple ][+ & //e Compatible RAM Card ExamplesThese Cards are mainly for the ][+ but will also work in a //e. Some even have special uses in the //e. All Cards mentioned under this header are installed in Slots 1-7. The EXCEPTION is the Language card type cards. (16K) The following is a description of the types of cards and what the limitations are. [edit] Apple ][/][+ Language Cards (Slot 0)Cards that use 4116 chips. (16K x 1) - 8 chips make 16K. The same as what the ][ / ][+ motherboard uses.
[edit] Slot 1-7 Cards that use 4164 - 64K( x 1)8 Chips make one bank of 64K
[edit] Slot 1-7 Cards that use 41256 - 256K( x 1)8 Chips make one bank of 256K
[edit] Apple //cCards for the Apple //c will ONLY work in a //c, either plugged to the motherboard or the RAM Expansion connector depending on card/computer type. The RAM cards that piggyback onto the MMU and IOU chips will work on either //c but the cards that have the memory expansion connector only work with the Apple //c with Memory Expansion connector, or IIc Plus with some exceptions. [edit] Apple //c - IIc Plus RAM Card Examples[edit] RAM //cThis is a 1024K (1 Meg) Ram expansion for the Apple //c and IIc Plus. It is 100% compatible with Apple's //c memory expansion card and follows all guidelines set by Apple computer for expanded memory within the //c. It works with many programs directly, such as AppleWorks 3.0 & ProTERM 3.0. For this card to work in an Apple //c the computer must have a memory expansion connector inside the computer. If the //c was purchased after 1985 or has a 'platinum' (grey) colored keyboard it has the connector already. If the //c is an older one it most likely does not have the connector needed and will have to use the Super Expander C. ALL IIc Plus units have this connector [inbuilt] so this is not a problem. [edit] Super Expander CThis is a 1024K (1 Meg) expansion card for the Apple //c. It follows Apple's memory expansion guidelines for compatibly with such programs as AppleWorks 3.0. This card is installed by way of removing two chips from the motherboard and installing the Super Expander C into those locations. The two chips are then installed onto the card. This card is mainly used when the Sequential Systems RAM //c can't be used because no memory expansion connector exists.
[edit] Apple //c Cards that use 41256 - 256K( x 1) - 16 Pin DIPs8 Chips make one bank of 256K
[edit] Apple //c Cards that use 41024 (1024K x 1)8 Chips make one bank of 1024K
[edit] Other Cards/Cards that contain RAM expansionThere are many peripheral cards available for the Apple that use RAM for themselves, but when not in use, the RAM may serve as a RAM disk or some other system related use. Also, for lack of a better category, we will list things that would need SRAMs here too. Eg: AE PC Transporter, PCPI Appli-Card, ZipGS, AE TransWarp GS and ImageBuffer II The following is a description of the types of cards and what the limitations are. [edit] Cards that use 4164s
[edit] Cards that use 41256s
[edit] Cards that use 44256
[edit] Cards that use 4464 ZIPs
[edit] Cards that use 6264 and/or 62256 SRAMs
[edit] Misc. RAM Card Related Information & Problem Solutions[edit] A //e type RAM Card Makes the Machine Lockup... but when the card is removed, the machine works fine. There are two reasons why this could happen: 1)A Defective card. (Less likely) The fix for a revision A board is, upgrade to a //e Revision B motherboard. This used to be upgraded at an Apple Dealer for FREE, 100% FREE. These days, having a Revision A. //e board might be somewhat of a novelty. This is how you used to do it: [edit] Revision A Apple //e Motherboard InformationWhat having a Revision A. //e means is you can not do DHR (Double Hi-Res) Graphics and can not use most RAM expansion cards without removing the jumper or cutting the "bow-tie". [edit] Were Sorry, but XXXXXXX Program Requires 128KA memory card for the ][, ][+ (Slot 1-7) will not fix this. The software is looking for an Apple //e with 128K. You must use memory expansion cards for the Auxiliary Slot in the //e.
[edit] AppleWorks doesn't see my newly added memoryDepending on the RAM card, and the computer type, the fix for this may be either a disk that came with the card to patch AppleWorks needs to be booted to see the memory or card, this is also known as a 'Pre-boot Disk', or the disk may contain an AppleWorks patch utility to fix your copy of AppleWorks to support this particular RAM card.
[edit] RAM Chip Types / CompatibilityRAM Cards for the Apple use CAS before RAS chips. Generally this is not a problem. These cards can use either DRAM chips or SIMMs. However, if a chip type is not listed here. Please find one that is or check with someone for the possibility of another chip type being compatible. (In which case it should get added to the list below) [edit] 4116 - 16 x 8 DIP 14 pinThese are the RAM chips used on the Apple II and Apple II+ motherboards. Only the II and II+ use these chips on the motherboard. [edit] 4164 - 64 x 8 DIP 16 pinThese are used on the Apple //e & //c motherboards. Later model motherboards use 41464 chips instead. Known compatible chips include (But may not be limited to) the following:
[edit] 41256 - 256 x 8 - DIP 16 pin
[edit] 768K Expansion SetThe 768K Expansion set is used to expand a 'stock' Apple IIgs 512K system to 1.25 meg. This includes the Apple IIgs Memory expansion card and the AE GS RAM. A 768K set can also be used with an Apple //e & //c , with any memory expansion card that uses 41256 DRAMs. This set can also be used with a Laser 128 EX [edit] 256 x 8 - 30 Pin SIMM
[edit] 44256 - 256 x 4 18 pin DIPThese are similar to 1 Meg DRAM Chips, they accomplish the same thing but are configured differently. Not as many products use them but some of the uses are expanding the AE GS RAM Ultra & RAMPak 4GS
[edit] 1024K x 8 (1 Meg) 18 Pin DIPThese are 1 Meg DRAM Chips. Commonly used in the AE GS RAM+, these are used to expand memory in one meg increments. Other compatible interface cards are GS Juice +, MPD 4 Meg, CV Tech Rev B. RAM Card. Chinook 4000, RAMFactor 4 Meg Expansion and the S&S RAM Card.
[edit] 1024K x 8 (1 Meg) 30 Pin SIMM1 Meg SIMMs are used on some Apple IIgs Memory Expansion Cards.
[edit] RAMFast 1 Meg Cache upgradeThis is a two chip set that replaces two 44256 chips on the upper right corner of a RAMFast Rev D SCSI card and will increase its cache from 256K to 1 Meg. |

