From a rotary to pistons. Well, that's an unusual switch.

A widely known FPGA "manufactured illegally" by Actel. I find that riduckulous.

There is, in fact, DXpatch specifically for the DreamX-1480 and Shonk's 1GHz patcher for patching while some don't require any patching (i.e. XBMC). It doesn't have to be about the speed and performance but at least it is still educational. Isn't that what hardware hacking is all about?

Thanks for a reply, Giggles.

Hello peeps,

So, I've got back to reading bunnie's Hacking The Xbox which features a whole section about printed circuit boards. For this project, I chose to upgrade the Xbox's processor from a mobile Celeron/Pentium III 495-pin/BGA to run a desktop (actually server) 370-pin Pentium III ^{(sSpec SL657)} in which the Xbox will need a socket conversion by fabicating a custom PCB. These are the only types of processors (Celeron also) that are only compatible, in terms of bus speeds, with the original Xbox. Fortunately, the original processor on the Xbox has no security whatsoever (pretty sure M$ learned this by now) and with successful upgrades from Friendtech and Trusty from X-S, this just might as well work.

Furthermore, here are some pics of the progress:



Color codes: Vcc, Vtt, Vss, Other Power, AGTL(+) Input/Output, CMOS Input/Output, JTAG/TAP Debug, Voltage Identification, Thermal, AGTL(+) Input or Output, Special, No Connect

Xbox v1.6 with chips removed.

A 1:1 copy of the PCB prototype with 370-pin ZIF socket attached.

PCB copy alignment.

The whole nine yards.

Then the thing that makes this whole project possible (partially finished):


Hints, comments, and/or suggestions are highly appreciated.

Anyone can create an account, try and request an unban. It's very unlikely that it can happen on most forum boards on the web today. Anyone can assume that it might be even you posting under that account requesting an unban without needing to look up any IP addresses. Posting to request an unban will most likely make the situation even worse.

Welcome to the scene.

And yes, XBH is hosted on Xbox-Scene's servers. I guess this is the place for you.

Oh, wait for it. . .


Bingo!

The official addon has its problems with iDGtool freezing up and no one really found the bug. A homebrew level shifter is the only way around this.

There is a whole topic dedicated to the freezing: http://www.xboxhacker.net/index.php?topic=9477.0

You should get status "AD73" at the bottom right of the Infectus programmer and should say the brand and model of the NAND flash in the status bar. If not, then it is definitely a wiring problem.

Try: http://beta.ivancover.com/wiki/index.php/Xbox_360_Infectus#Update_Infectus_chip

The only good "workaround" is to use a homebrew level shifter.

My official addon would not go past the first hash byte but building a homebrew level shifter did the trick.

Here's my more clearer schematic that worked:

I've been having this problem as well. My official addon was directly attached to the Infectus2 but now I'm using the homebrew level shifter with the Actel firmware flashed with the latest homebrew postbus.

With everything attached and ready, I power on the box, wait for red ring, and start up iDGtool. I couldn't go past the first hash byte. Sometimes iDGtool will stop around 0x05XX through 0x20XX but this afternoon, I was able to go up to at least 0x50XX with the 100nf ceramic cap soldered to the addon and have the addon powered by the V line (pure 3.3v) instead of the A8 line (which gave me 3.49v on my multimeter; guess it made a huge difference or I was rather lucky ). I also had the addon powered by 5v which made no significant difference unfortunately.

I've built the homebrew level shifter with this diagram (with R10 replaced with 1N4148 silicon diode), attached to Infectus2 and Actel flashed with homebrew postbus. Unfortunately, iDGtool just hangs at "press any key".

Just my two cents of what I been trying to do over the past couple of days with no success... 

Anyone know what the Infectus Timing Attack PCB components use, such as the one labeled "A04A"(ref)? Just ordered my Infectus2 but did not get the timing attack PCB addon but was planning on building one from scratch.

I couldn't find any datasheets on the "A04A" so I took a look at robinsod's schematic and it uses 339 quad comparators. Was wondering if the components on the PCB addon are similar to his timing attack schematic.

Appreciate it if someone could shed some light on this.