Topic: Adding An Additional 64 Meg For The Xbox (Read 95 times)

dink · « **on:** July 14, 2003, 01:26:00 PM »

On page 157, he writes: "...the initialization code for the Xbox need to be modified in order for the chipset to recognize and use the extra memory"

Does X2 4977 or Cromwell 1.x do this?

dink · « **Reply #1 on:** July 15, 2003, 09:54:00 AM »

QUOTE

The current thought is that perhaps there is some memory caching that's going on here in hardware. At this point, however, it might be bios, kernel, or hardware related. I have no idea myself.

Maybe there is something being done to NV2A (GPU + Northbridge) chip, with the 5558 XDK bio. Since the NV2A controls the DDR SDRAM memory banks.

Has Erik tried loading 5558 XDK bio in his box? Then test the memory again with his test program?
This would rule out the theory of any extra hardware (caching) used in the XDK boxes.

noodle1009 · « **Reply #2 on:** July 15, 2003, 12:21:00 PM »

QUOTE

Well, looks like there will be at least one more update in the next MAMEoX....

dink · « **Reply #3 on:** July 15, 2003, 03:29:00 PM »

Great news!

But what about the memory test program. Does that needs to be fixed too?

dink · « **Reply #4 on:** July 16, 2003, 07:21:00 AM »

Great, I'll add 128 to mine and run the memtest program.

thanks

Author Topic: Adding An Additional 64 Meg For The Xbox (Read 95 times)