If you need help with diagnosing issues on your ASUS Portable AiO PT2001, take a look at the troubleshooting guide.
The ASUS Portable AiO PT2001 was released in mid-2014. It contains laptop hardware, with a hyperthreaded dual-core i5-4200U clocked at 1.6GHz (with turbo boost to 2.6GHz). This CPU is paired to 8GB of DDR3-1333 RAM and a Nvidia Geforce 820M graphics card with 1GB of video RAM. The display is a 19.5” IPS touch screen display with a maximum resolution of 1600x900. This PC contains a host of peripheral ports, including 2 USB 3.0 ports, a USB 2.0 port, a 3-in-1 Card Reader (SD/SDHC/MMC), a 3.5mm audio jack, and separate HDMI-in and HDMI-out ports. The HDMI-in port allows the computer to be used as an external display for another computer. This AiO also contains battery which is rated for 5 hours of usage, according to ASUS.