Slot-2 RAM 'EXRAM' build

As well as the regular and wifi builds of QuakeDS, there is a third build available which will take 'advantage' of the RAM provided in certain slot-2 flash cards.
Cards which should work are:

• 'Proper' SuperCards, eg the Lite, SD, MiniSD, and CF. The SuperCard Rumble and SuperCard One are not compatible.
  The SuperCard sometimes needs to go into the launcher menu in order to activate the RAM. If your card is not being detected, go to the launcher and come back to the game.
  
• '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. I've personally tested the '3-in-1' and have heard the '4' works.
• Apparently the G6Flash. I'm afraid I don't really know anything about this though...
• The Nintendo RAM Expansion Pak for the DS browser.

If you do not have a slot-2 card which has onboard RAM in your DS when running this build you will receive an error on startup.

There are two special options available to you when using the EXRAM build. These are accessible by holding down the right shoulder button during the "FAT init" step of the QuakeDS startup.
Once you've done this, you'll be able to force detection of a certain type of RAM card (this can be useful for the NDS RAM Pak) and more importantly you are able to overclock your slot-2 RAM.
This overclocking is very useful for improving the in-game performance (since slot-2 RAM is very slow normally). However, not all cards are made equal and cannot handle tighter timings. To more robustly find out if you RAM is capable of an overclock, please try memtestARM from http://www.pineight.com/ds/

To avoid disappointment, be aware that playing QuakeDS is not low on RAM when playing regular Quake, therefore adding memory will not help in the slighest. If you do however choose to use the EXRAM build, don't be surprised by a drop in framerate. Slot-2 RAM is roughly four times slower than the already-slow internal RAM in your DS. I have spent many months working to hide this problem and on cards such as the M3 and EZ 3-in-1 there is a mere 15% drop in average performance.

There are many differences between the three builds. Choose the one that fits your requirements best.

Feature	Regular	Wifi	EXRAM
Game heap	2.95MB	2.7MB	8/16/32MB*
Game speed	100%	100%	60-85%*
Load times	Fast	Fast	Depends*
Game saves	Yes	Yes	Depends*
Networking	No	Infrastructure*	Infrastructure*
Max players/bots	2	2	16
Quake compatibility	High*	Low	Perfect
Mod/TC compatibility	Med-low	Low	Perfect
Texture cache	512kB	512kB	512kB
Sound cache	128kB	128kB	512kB
Accelerated texturing	No	No	Yes
Max polys/frame	2048	2048	2048
Max particles	16	16	128
Max models	192	192	256
Max sounds	160	160	256
Max edicts	360	360	512
Max files in pack	350	350	512

Notes

* The size of the heap available to the game will depend on the type of slot-2 fast card plugged into your DS.
* The speed of the game will depend on how greatly you can overclock your slot-2 RAM. The speed of the slot-2 build will never be greater than the speed of the 'regular' build.
* Load times (and game performance) are slightly slower than the regular build when a slot-2 DLDI driver is in use. When using a slot-1 DLDI (and a flash card in that slot, too) load times and game performance are as good as they can be. This is the recommended way to play.
* Game saves should technically work with the EXRAM build when using a slot-2 DLDI driver, however there is a small chance of corruption or crashing. There will be no corruption with a slot-1 DLDI and equivalent flash card. The EXRAM build will perform best with a slot-1 flash card running in tandem with a slot-2 RAM card.
* In the wifi build, the connection to the default access point is made on startup of the game. In the EXRAM build, the connection is made on entry to the 'multiplayer' menu.
* Quake compatibility with the regular build would be perfect if not for an edicts problem on the e2m7 secret level.