HP CQ42-134TU, CQ42-109TU, CQ42-103TU, CQ42-275TX, CQ42-276TU, CQ42-168TU Hard drives, 35-cm 2.5-in

Category	Description		HP G42	HP G42	Compaq	Compaq	Compaq
					Presario	Presario	Presario
					CQ42	CQ42	CQ42
			Discrete	UMA	Discrete	UMA Models	UMA Models
						150-199	100-149
	Customer-		√	√	√	√	√
	accessible and
	upgradable
	Supports up to 8 GB		√	√	√	√	√
	of system memory
	DDR3, 1066-MHz,		√	√	√	√
	dual-channel
	memory (DDR3
	1333 MHz can be
	downgraded to
	DDR3 1066 MHz)
	DDR3, 800-MHz,						√
	dual-channel
	memory (DDR3
	1333 MHz can be
	downgraded to
	DDR3 800 MHz)
	Supports the
	following
	configurations:
	●	4096 MB (2048	√	√	√	√	√
		MB × 2)
	●	3072 MB (1024	√	√	√	√	√
		MB × 1 + 2048
		MB × 1)
	●	2048 MB (2048	√	√	√	√	√
		MB × 1)
	●	2048 MB (1024	√	√	√	√	√
		MB × 2)
	●	1024 MB (1024	√	√	√	√	√
		MB × 1)
Hard drives	Supports 9.5-mm,		√	√	√	√	√
	6.35-cm (2.5-in)
	hard drive
	Serial ATA		√	√	√	√	√
	Supports the
	following drives:
	●	750 GB, 5400	√	√	√	√
		rpm
	●	640 GB, 5400	√	√	√	√
		rpm
	●	500 GB, 7200	√	√	√	√
		rpm

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