[[!comment format=mdwn
 username="https://www.google.com/accounts/o8/id?id=AItOawmP_1ERJSyf0fSI4s8_cTSpauvjAlhboIM"
 nickname="computerhobby"
 subject="GRex(4000) PCI coding"
 date="2014-09-06T16:59:41Z"
 content="""
Hi Radoslaw,

the GRex mystery is solved.

http://www.a1k.org/forum/showthread.php?p=763785

You have to use the first memorywindow (BAR) for the XROMBAR.
After activating (here at $8000.0000 with a Radeon9250 256MB) you could copy the ROM to somwhere in the RAM.
Next step, deactivate XROMBAR and reactivate the old BAR.

BR
Andre \"Ratte\" Pfeiffer
a1k.org
"""]]