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Duox2 With 4 256k Banks?


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#1 carwarr

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Posted 26 March 2006 - 11:02 PM

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.

#2 Julius Pleaser

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Posted 27 March 2006 - 03:28 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.

#3 Chancer

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Posted 27 March 2006 - 06:27 PM

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.

#4 ModdingManiac

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Posted 28 March 2006 - 01:21 AM

QUOTE(Julius Pleaser @ Mar 27 2006, 03:35 AM) View Post

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.

#5 carwarr

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Posted 30 March 2006 - 06:31 AM

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.


QUOTE(Julius Pleaser @ Mar 26 2006, 06:35 PM) View Post

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.



#6 run088

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Posted 27 May 2008 - 02:15 PM

I'm kind of interested in this answer and its never mentioned.Does anybody have this info or know where it is?

#7 litspliff

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Posted 28 May 2008 - 10:34 AM

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.


Edited by litspliff, 28 May 2008 - 10:51 AM.





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