MacBooks

15″ MacBook Pro (Santa Rosa)

Overview

The 15" MacBook Pro became Apple's first notebook computer with LED backlighting when it was introduced on June 5, 2007. Other than that, the specs don't seem much different than it's predecessor.

15" MacBook ProThe other changes are under the hood. The June 2007 MacBook Pro models use Intel's new 'Santa Rosa' chipset and the Merom CPU on an 800 MHz system bus (which can be dynamically adjusted to save power), up from 667 MHz on last year's model. They included Nvidia GeForce 8600M GT graphics, an improvement over the ATI Mobility Radeon X1600. They now use 8x SuperDrives, vs. 6x on the earlier model. 2 GB of RAM is now standard, with a 6 GB ceiling (up from 3 GB). And they run their CPUs a tiny bit faster.

Still, the biggest news is the "green" display, which is backlit by LEDs (for better battery life) and mercury free. The new model is also 0.2 lb./90g lighter than its predecessor.

Unlike earlier models, where every USB port could provide 500 mA of power, only a single high-powered device can be attached to the USB ports, and software will enable one of its downstream ports to supply 500 mA of power. If a second high-powered device is attached, it will behave like a normal bus-powered hub and only provide 100 mA per downstream port.

Note that the built-in display is only capable of 18-bit color, not the full 24-bit color you might expect.

Closed Lid Mode: All Intel 'Books support "lid closed" (or clamshell) mode, which leaves the built-in display off and dedicates all video RAM to an external display. To used closed lid mode, your 'Book must be plugged into the AC adapter and connected to an external display and a USB or Bluetooth mouse and keyboard (you might also want to consider external speakers). Power up your 'Book until the desktop appears on the external display and then close the lid. Your 'Book will go to sleep, but you can wake it by moving the mouse or using the keyboard. The built-in display will remain off, and the external monitor will become your only display. Since all video RAM is now dedicated to the external monitor, you may have more colors available at higher resolutions. The TiBook is designed to run safely in closed lid mode, but if yours runs hot (perhaps due to overclocking or high ambient temperatures), you may want to open the lid when in closed lid mode: The screen will remain off and the computer will more readily vent heat from the CPU.

To resume use of the internal display, you need to disconnect the external display, put the computer to sleep, and then open the lid. This will wake up your 'Book and restore use of the built-in display.

Intel-based Macs use a partitioning scheme known as GPT. Only Macintel models can boot from GPT hard drives. Both PowerPC and Intel Macs can boot from APM (Apple's old partitioning scheme) hard drives, which is the format you must use to create a universal boot drive in Leopard. Power PC Macs running any version of the Mac OS prior to 10.4.2 cannot mount GPT volumes. PowerPC Macs won't let you install OS X to a USB drive or choose it as your startup volume, although there is a work around for that.

Battery life is expected to be 30-60 minutes longer than on earlier MacBook Pro models.

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