Toshiba Qosmio X300 Maintenance Manual page 215

B.2 System Board Bottom View
B-2
Figure B-2 System Board Layout (Bottom)
Table B-1 System Board ICs (top and bottom)
Number
U3 North bridge Intel Cantiga PM
U10 South bridge Intel ICH9-M
UO2 EC ENE KB926
UL1 RTL8111C
UR1 Card Reader JMB280
UA1 HD Audio codec ALC268+272
UA4, UA9 Amplifier APA2068
UA5 Amplifier APA3011
U19 Clock Generator ICS9LPRS365BGLFT
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Qosmio X300 Maintenance Manual