Asus PRIME Z370-P User Guide - Page 20
Headers, Clear RTC RAM 2-pin CLRTC
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VGA configuration Single VGA/PCIe card Dual VGA/PCIe cards PCI Express operating mode PCIe 3.0 x16_1 (gray) x16 (Recommended for single VGA card) x16 PCIe 3.0 x16_2 (black, x4 mode) N/A x4 • In single VGA card mode, use the PCIe 3.0 x16_1 slot (gray) for a PCI Express x16 graphics card to get better performance. • We recommend that you provide sufficient power when running CrossFireX™ mode. • Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using multiple graphics cards for better thermal environment. Hyper M.2 X16 card configuration 3 Intel® SSDs on CPU support PCI Express 3.0 operating mode PCIe 3.0 x16_1 (gray) PCIe 3.0 x16_2 (black) x8+x4+x4 N/A • Hyper M.2 X16 card is purchased separately. • Enable the Hyper M.2 X16 card under BIOS settings. 1.6 Headers 1. Clear RTC RAM (2-pin CLRTC) This header allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. ® +3V_BAT GND CLRTC PIN 1 PRIME Z370-P Clear RTC RAM 1-10 Chapter 1: Product introduction