upgrade from cr3 lite to cr4 xl

mikeald

Full Member
Oct 16, 2013
32
0
Hi all,

I have a corona v1, with a cr3 lite installed (I did it ages ago), all works perfectly, but takes ages to boot.

I would like to replace this with a cr4 xl.

Obviously I need to put 5v to the chip instead of 3v, and run a wire from pad E to DB2G3

I assume I can use the existing cpu reset and pll bypass wires????

My main question is:

Once installed, will I then need to create and flash a new image with the cr4 box ticked within jrunner?

Or will the existing image work?

Any help welcomed.

THank you....
 

chase

VIP Member
Apr 11, 2004
1,073
28
Toronto, Canada
Hi all,

I have a corona v1, with a cr3 lite installed (I did it ages ago), all works perfectly, but takes ages to boot.

I would like to replace this with a cr4 xl.

Obviously I need to put 5v to the chip instead of 3v, and run a wire from pad E to DB2G3

I assume I can use the existing cpu reset and pll bypass wires????

My main question is:

Once installed, will I then need to create and flash a new image with the cr4 box ticked within jrunner?

Or will the existing image work?

Any help welcomed.

THank you....
I think you mean cpu_rst and post_out1 :)
 
Last edited:

mikeald

Full Member
Oct 16, 2013
32
0
ok, all done, and glitching within 3 cycles.

For info:

After installing, the xbox did not glitch at all. I had to shorten the cpu_rst wire by approx 1 inch, then worked immediately.

Whilst the xbox was open, I also installed a talisman whisper fan.

However - It is louder than the stock fan.

cheers