Yeah, dual BIOS is the best way to go before doing this mod. Personally I like to remove the stock ROM and replace with MX29L3211, it's twice the size of the Dreamcast BIOS, and by wiring a simple switch to the highest address line, you can basically create a double-bank setup. I use a 32MB region free BIOS for the first bank, and DreamBoot BIOS on the second bank with an updated dcload-ip, so I can basically boot into dcload-ip from ROM quickly and easily.MastaG wrote:So I have a Dreamcast with two flashable tsop's and a switch.
First one has Japanse cake's bios and the second one has the DreamShell loader.
This should make it easy, as you could boot from the DreamShell bios up front and flash the 32MB bios in the other chip.
Then replace the ram chips and flip the switch to boot from from the 32MB bios.
Finally while booted into DreamShell, flip the switch once more to flash the 32MB DreamShell bios in the first chip.
Is there anybody willing to do the upgrade for me?
As I dont have a hot air soldering station
If you're comfortable doing the mod but you just lack a hot air station, I recommend trying out Fast Chip alloy, it's basically a low temperature melt solder, you apply it to both sides of the existing RAM chip and they stay melted simultaneously and you can lift the chip off the board. Then you clean the pads (be careful not to lift any of them when applying heat) and install your new chips.
Just remember as of right now, any game that plays Sofdec FMV will likely crash. 4XM videos (e.g. from Headhunter) work fine though. I only use this DC for dev work and some occasional Crazy Taxi in the office, so it isn't a problem for me. I keep another DC with DCDigitalv2/GDEMU/Noctua fan in the living room for actual gaming. I hope in the future we can figure out how to patch this problem, possibly having dreamshell's isoldr patch games on the fly
