About ConsumeII BIOS post code

cdvehicle · ‎2005-04-20

Posted on April 20, 2005 at 13:19

twitwity · ‎2005-04-19

Posted on April 19, 2005 at 09:58

if you used demondtration copy from GeneralBios (actually from whatever company..) the default setting for SIO base adress is 0x370 so the pin #115 (nrts1) should be pulled up. but your schematic shows it is floating. this is obvious mistake.

0x370 is default value for SIO access. you can modify the circuit to pull down nRTS1 pin and you can change the Base address to 0x3F0 in BIOS menu when Hardware work has been done.

marios · ‎2005-04-19

Posted on April 19, 2005 at 13:15

Twitwity is right, you forgot the pullup to set the right config address. There's your bug! Keep us posted!

The post codes display what they are going to do, not what has been done. Also, when there's a fault at a particular post code, the CPU may be continuously looping at what it thinks is the fault condition.

cdvehicle · ‎2005-04-19

Posted on April 20, 2005 at 04:41

thanks I'll try it

[ This message was edited by: vehicle007 on 20-04-2005 13:34 ]

marios · ‎2005-04-20

Posted on April 20, 2005 at 13:19

On a more positive note, your CPU is alive and it does execute the BIOS code correctly. This is already a great thing. A CPU that doesn't start, especially a BGA one, is a nightmare.