Memory Information
	RAM Speed On Board RAM Supported sizes in MB Maximum RAM Virtual Memory On Board VRAM Number of VRAM slots	70ns 4 or 8MB 4,8,16,32 36/40MB 1GB See VRAM notes See VRAM notes

Notes

The PowerBook 190 and 190cs come with either 4 or 8MB of RAM soldered on the main logic board and one expansion slot. The model that comes with 4MB on the logic board is expandable to 36MB. The model that comes with 8MB on the logic board is expandable to 40MB.

VRAM Notes

VRAM Expansion All of the PowerBook 5300 and the PowerBook 190 (with the video-out upgrade) series computers have two separate sets of VRAM to support the internal and external displays. External Display VRAM All of the PowerBook 5300 and the PowerBook 190 (with the video-out upgrade) series computers have 512K of VRAM soldered on a video card for supporting external displays. The highest bit depth available for external displays at either 640 x 480 or 832 x 624 resolutions is 8 bits per pixel unless you expand the VRAM by replacing the Apple video-out card with a third party video expansion card product. If the VRAM on the third party video card is 1 MB, the computer will be able to output 16 bits per pixel on an external display. Internal Display VRAM NOTE: The following descriptions apply only to models sold in the United States. Europe and Asia have models that differ slightly from these configurations. The Macintosh PowerBook 5300 and 5300cs computers and the 5300c (that comes with 8 MB of RAM) come with 512K VRAM soldered to the logic board for support of the internal LCD Display. It cannot be removed or upgraded. The Macintosh PowerBook 5300c that comes with 16 MB of RAM on the logic board and the Macintosh PowerBook 5300ce have 1 MB of VRAM. This allows for higher bit depth support on the internal display. It also cannot be removed or upgraded.