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Chapter 2 163
LS-4494P Fingerprint Board
LS-4495P USB Board
Clearing Password Check and BIOS Recovery
This section provide you the standard operating procedures of clearing password and BIOS recovery for
Aspire 4540/4240. Aspire 4540/4240 provides one Hardware Open Gap on main board for clearing password
check, and one Hotkey for enabling BIOS Recovery.
JUSB1 USB Connector JHP1 Head-Phone Jack
U6 VRAM JMIC1 MIC-In Jack
JPLINE1 Line-In Jack U4 GPU
U8 VRAM U14 South Bridge
JREAD1 Card Reader Connector JDIMM1 MemoryDIMM1 Connector
JDIMM2 MemoryDIMM2 Connector JSATA1 ODD Connector
JSATA2 HDD Connector JMINI1 Wireless Card Connector
PJP2 Battery Connector JCPU1 CPU Socket
U3 North Bridge
Item Description Item Description