System Design Checklist
R
158 Intel
®
815 Chipset Platform Design Guide
Checklist Items Recommendations
NO CONNECTS • The following pins must be left as no-connects: A29, A31, A33, AC37,
AJ3, AK24, AK30, AL1, AL11, AM2, AN13, AN23, B36, C29, C31, C33,
C35, E21, E29, E31, E35, E37, F10, G33, L33, N33, N35, Q33, Q35,
Q37, R2, V4, W35, X2, Y1, Z36.
NCHCTRL (N37) • 14 Ω pull-up resistor to VTT.
13.3 GMCH Checklist
13.3.1 AGP Interface 1X Mode Checklist
Checklist Items Recommendations
RBF#, WBF#, PIPE#,
GREQ#, GGNT#, GPAR,
GFRAME#, GIRDY#,
GTRDY#, GSTOP#,
GDEVSEL#, GPERR#,
GSERR# , ADSTB0,
ADSTB1, SBSTB
Pull-up to VDDQ through 8.2 k
Ω
ADSTB0#, ADSTB1#,
SBSTB#
Pull-down to ground through 8.2 kΩ
PME# Connect to PCI connector 0 device Ah. / Connect to PCI connector
1 device Bh. / Connect to Intel
®
82559 LAN (if implemented).
TYPEDET# Connect to AGP voltage regulator circuitry / AGP reference circuitry.
PIRQ#A, PIRQ#B Pull-up to 5 V through 2.7 kΩ. / Follow ref. schematics (other device
connections).