I know it would require soldering a switch to an address line. I was just wondering if anyone has tried it?
Might have to look up the pinout of the chip.
Sorry if it has been already discussed. I did look through the 14+ pages. And google search is SOOO wonderful! (sarcasm)
Thanks.
Full Version: Duox2 With 4 256k Banks?
Why on earth do you need 4 256k banks? The duoX2 has dual 512k's, and the extra 512k bank is as a backup in case the first ever fails and needs to be reflashed. 99% of people only ever use the one bank.
Yes it can be done and has been done.
I have never attempted it but there have been threads on here listing how to do it. i can't find one at the moment though.
I have never attempted it but there have been threads on here listing how to do it. i can't find one at the moment though.
QUOTE(Julius Pleaser @ Mar 27 2006, 03:35 AM) 
Why on earth do you need 4 256k banks? The duoX2 has dual 512k's, and the extra 512k bank is as a backup in case the first ever fails and needs to be reflashed. 99% of people only ever use the one bank.
Maybe he wants to be able to boot to 3-4 dashboards with external switches, alot of people do that.
Why do I need 4 banks? Why did I climb a mountain. Why did a add a LCD display to my xbox. Why did I buy another modchip when I have 3 different ones for the same xbox?
Because I can.
Why do we hack the xbox? "Because we can!!!'
The real reason is there are only a couple of 512k bios out there and many 256k ones and I am always playing with different ones so having 4 bios at the flip of a switch before having to reflash to play with another one would be helpful. Happy???
I just love people with such useful responses to questions!!!
Thanks for your help JP. I will make sure I PM you with my next question directly since I am sure you will have a good answer.
Why on earth do you need 4 256k banks? The duoX2 has dual 512k's, and the extra 512k bank is as a backup in case the first ever fails and needs to be reflashed. 99% of people only ever use the one bank.
Because I can.
Why do we hack the xbox? "Because we can!!!'
The real reason is there are only a couple of 512k bios out there and many 256k ones and I am always playing with different ones so having 4 bios at the flip of a switch before having to reflash to play with another one would be helpful. Happy???
I just love people with such useful responses to questions!!!
Thanks for your help JP. I will make sure I PM you with my next question directly since I am sure you will have a good answer.
QUOTE(Julius Pleaser @ Mar 26 2006, 06:35 PM)
Why on earth do you need 4 256k banks? The duoX2 has dual 512k's, and the extra 512k bank is as a backup in case the first ever fails and needs to be reflashed. 99% of people only ever use the one bank.
I'm kind of interested in this answer and its never mentioned.Does anybody have this info or know where it is?
okay, the switch appears to connect to pin one of the AMD chip.
this changes the first binary value for the address.
0000--->1000 (0 --> 8)
i'm guessing the pin directly below it will will further divide it.
0000---->0100 (0 --> 4)
i.e. you will need two switches.
00 - first bank
01 - second bank
10 - third bank
11 - fourth bank
make sense?
it may not be that simple, but that's the general idea.
you need pinouts. i couldn't find anything relevant on google.
keep bumping the topic until a veteran steps forward.
this changes the first binary value for the address.
0000--->1000 (0 --> 8)
i'm guessing the pin directly below it will will further divide it.
0000---->0100 (0 --> 4)
i.e. you will need two switches.
00 - first bank
01 - second bank
10 - third bank
11 - fourth bank
make sense?
it may not be that simple, but that's the general idea.
you need pinouts. i couldn't find anything relevant on google.
keep bumping the topic until a veteran steps forward.
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