HP 4425S manual Display Internal, External, Memory Standard, Maximum, Dual-channel, Communications

QuickSpecs

HP ProBook 4425s Notebook PC

Standard Features (availability may vary by country)

Display	Internal	HP ProBook 4425s:
		14.0-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution)
		14.0-inch diagonal LED-backlit HD BrightView (1366 x 768 resolution)
		Optional HP Privacy Filter
	External	Up to 32-bit per pixel color depth
		VGA port supports resolutions up to 2560 x 1440 at 75 Hz
		HDMI port supports direct connection to high-definition displays with up to
		1920 x 1080 resolution and 7-channel audio with one convenient cable (not
		included).
		NOTE: Resolutions are dependent upon monitor capability, and resolution
		and color depth settings.
Memory	Standard	DDR3 PC3-8500 SDRAM (1066 MHz)*
		Two SODIMM slots supporting dual-channel memory
		1024 MB, 2048 MB, and 4096 SODIMMs
	Maximum	Upgradeable to 8192 MB with 4096 MB SODIMMs in slots 1 and 2
	Dual-channel	Maximized dual-channel performance requires SODIMMs of the same size
		and speed in both memory slots.
	* Memory speed is processor dependent.
	NOTE: Due to the non-industry standard nature of some third-party memory modules, we recommend
	HP branded memory to ensure compatibility. If you mix memory speeds, the system will perform at the
	lower memory speed. Full availability of 4 GB or more of memory requires a Windows 64-bit operating
	system or Linux. With Windows 32-bit operating systems, the amount of usable memory is dependent
	upon your configuration, so that above 3 GB all memory may not be available due to system resource
	requirements.
Communications	Realtek Ethernet (10/100/1000 NIC)*
	Optional 56K V.92 modem**

* The term "10/100/1000" or "Gigabit" Ethernet indicates compliance with IEEE standard 802.3ab for Gigabit Ethernet, and does not connote actual operating speed of 1 Gb/s. For high-speed transmission, connection to a Gigabit Ethernet server and network infrastructure is required.

** Designed for downloads from 56K modem compliant sources. Maximum achievable download transmission rates currently do not reach 56 KB/s, and will vary with line conditions. Modem availability is subject to country regulatory approval.

DA - 13610 North America — Version 10 — November 23, 2010 Page 5