Intel 815 - Manual (Page 159)

System Design Checklist
R
Intel
®
815 Chipset Platform Design Guide 159
13.3.2 Designs That Do Not Use the AGP Port
Any external graphics implementation not using the AGP port should terminate the GMCH AGP
control and strobe signals in the following way:
Table 34. Recommendations For Unused AGP Port
Signal Pull-up / Pull-Down
FRAME# Pull-up to +VDDQ
TRDY# Pull-up to +VDDQ
IRDY# Pull-up to +VDDQ
DEVSEL# Pull-up to +VDDQ
STOP# Pull-up to +VDDQ
SERR# Pull-up to +VDDQ
PERR# Pull-up to +VDDQ
RBF# Pull-up to +VDDQ
WBF# Pull-up to +VDDQ
INTA# Pull-up to +VDDQ
INTB# Pull-up to +VDDQ
PIPE# Pull-up to +VDDQ
REQ# Pull-up to +VDDQ
GNT# Pull-up to +VDDQ
GPAR Pull-down to Ground using a 100 k Ω
resistor
AD_STB[1:0] Pull-up to +VDDQ
SB_STB Pull-up to +VDDQ
AD_STB[1:0]# Pull-down to Ground
SB_STB# Pull-down to Ground
ST[2:0] Pull-up to +VDDQ