For a guide to Troubleshooting the Acer Chromebook 15 C910-C453 click here.
Background and Identification
The Chromebook C910 is the first Chromebook to have a 15.6-inch display. This large display is the biggest differentiating feature from other Acer Chrombeooks. The laptop runs ChromeOS and has a maximum RAM capacity of 4GB. Another identifying feature of Acer Chromebooks is the use of Intel processors and memory. The C910-C453 uses the Intel® Celeron® 3205U processor Dual-core 1.50 GHz. The C453 version also is limited to a screen resolution of (1366 x 768), smaller than the more expensive C910 models which have a resolution of (1920 x 1080). The processor, screen resolution and the 16GB solid state drive are the three features of the C910-C453 that discern it from the rest of the laptops in Acer's C910 Chromebook series.
The laptop can be identified by the part number: NX.EF3AA.003, with the last two digits making it different from the other C910 laptops.
The Acer Chromebook 15 manual can be found here.
The Google Chromebook help center is located here.
The Google Chromebook Central Help Forum where you can personally have questions answered can be found here.