26 Chapter 1Hardware Specifications and ConfigurationsProcessorItem SpecificationCPU type Intel Celeron M processor at 1.3GHz~1.4GHZ for TravelMate 2300Intel Pentim M processor at 1.5GHz~1.6GHz (Dothan) for TravelMate 4000Intel Pentim M processor at 1.8GHz (Dothan) for TravelMate 4500Core logic Intel 855GME+ICH4CPU package Intel socketable 478pin Micro-BGACPU core voltage 1.308V (highest frequency mode) to 0.956V (low frequency mode)0.748V (deeper sleep mode)BIOSItem SpecificationBIOS vendor PhneoixBIOS Version 3A03BIOS ROM type SST 39SF040A, 512KX8 CMOS Boot Block Flash MemoryBIOS ROM size 512KBBIOS package 32-pin PLCCSupported protocols ACPI 1.0b, PC Card 95, SM BIOS 2.3, IEEE1284-ECP/EPP, PCI 2.2, PnP1.0a, DMI 2.0, PS/2 keyboard and mouse, USB 2.0, VGA BIOS, CD-ROMbootable, IEEE 1394BIOS password control Set by setup manualSecond Level CacheItem SpecificationCache controller Built-in CPUCache size 512K for Intel Celeron M processor at 1.3~1.4GHz-TravelMate 23002MB for Intel Pentium M processor at 1.5~1.6GHz (Dothan)-TravelMate 40002MB for Intel Pentium M processor at 1.8GHz (Dothan)-TravelMate 45001st level cache control Always enabled2st level cache control Always enabledCache scheme control Fixed in write-backSystem MemoryItem SpecificationMemory controller Intel 855GME built-inMemory size 0MB (no on-board memory)DIMM socket number 2 socketsSupports memory size per socket 1024MBSupports maximum memory size 2G (by two 1024MB SO-DIMM module)Supports DIMM type DDR Synchronous DRAMSupports DIMM Speed 333 MHzSupports DIMM voltage 2.5V and 1.25VSupports DIMM package 200-pin soDIMMMemory module combinations You can install memory modules in any combinations as long as theymatch the above specifications.