if you are using an r4 then you are running either the last firmware v1.18, some build of ysmenu, or wood r4. i can't speak about ysmenu, but the r4 firmware and wood r4 will not support the ez iv as a gba expansion natively. wood only supports the 3in1 v1 and v2, it does not support the 3in1 v3 known as the 3in1+. the r4 firmwares never supported any ram expansions without gba exploader or patching. ds heretic is a .ds.gba homebrew and does not require any ram expansion, you only need to flash that game over and have it run via passme, which the r4 does support. i had this game tested tonight and it works with wood r4's passme code as long as it has a valid checksum.
as for quake2, i just checked the archived homepage and it supports the following expansion packs.
QUOTE said:
Supported cards:
'Proper' SuperCards, eg the Lite, SD, MiniSD, and CF. The SuperCard Rumble and SuperCard One are not compatible.
'Perfect' M3s, eg the Lite Perfect, the Mini SD Perfect, and the SD Perfect. The Mini SD Pro, SD Pro, and Lite Pro are not compatible.
EZ-Flash cards which have a slot-2 component and can play GBA games over 32MBit, eg EZ 3-in-1, EZ 4, EZ 5
G6 Flash
if you are looking for something to use as RAM the m3 lite had the fastest RAM, as explained to me my Simon J Hall (quake dev). the next was the 3in1. you should just pick up the
3in1 phat that shoptemp sells. this way you can run .ds.gba games from NOR (anything up to 32MB and a 3 episode build of dsheretic with music is 32MB), you can also use it as a ram expansion for quake2, scummvmds build j, the ds web browser, etc.
if you do get the ez iv you are getting an actual gba flash kit. you will need to purchase the minisd card (or find one some place else). i've been told that the ez iv has incompatibility issues with minisd adapters. the ez iv doesn't have real time save, real time clock, etc. its basically a 3in1 with a minisd slot which will allow you to store roms to be flashed from the kit when its booted into gba mode, instead of having to write roms over to psram/nor via your slot-1 native flashing or homebrew.
you should be able to boot into the ez iv from wood r4's firmware slot-2 option, and you should be able to run what is in NOR via passme. i don't currenly have a minisd card so i can't run any tests for you. i'm sure someone who does know for sure will comment =).
whatever you do, don't pick the ez iv because it can run .nds roms from slot2 via passme. .nds compatibility is pretty low and you won't enjoy the experience.
i hope this info helps you in some way!
-another world