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> Duox2 With 4 256k Banks?, Is it possible?
carwarr
post Mar 26 2006, 11:02 PM
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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.
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Julius Pleaser
post Mar 27 2006, 03:28 AM
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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.
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Chancer
post Mar 27 2006, 06:27 PM
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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.
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ModdingManiac
post Mar 28 2006, 01:21 AM
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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.
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carwarr
post Mar 30 2006, 06:31 AM
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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) *

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.
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run088
post May 27 2008, 02:15 PM
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I'm kind of interested in this answer and its never mentioned.Does anybody have this info or know where it is?
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litspliff
post May 28 2008, 10:34 AM
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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 post has been edited by litspliff: May 28 2008, 10:51 AM
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