ASROCK H410M/ac Manual page 19

2.4 Expansion Slots (PCI Express Slots)
There are 2 PCI Express slots on the motherboard.
Before installing an expansion card, please make sure that the power supply is
switched off or the power cord is unplugged. Please read the documentation of the
expansion card and make necessary hardware settings for the card before you start
the installation.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
2.5 Jumpers Setup
The illustration shows how jumpers are setup. When the jumper cap is placed on
the pins, the jumper is "Short". If no jumper cap is placed on the pins, the jumper is
"Open".
Clear CMOS Jumper
(CLRMOS1)
(see p.1, No. 20)
CLRMOS1 allows you to clear the data in CMOS. The data in CMOS includes
system setup information such as system password, date, time, and system setup
parameters. To clear and reset the system parameters to default setup, please turn
off the computer and unplug the power cord, then use a jumper cap to short the
pins on CLRMOS1 for 3 seconds. Please remember to remove the jumper cap after
clearing the CMOS. If you need to clear the CMOS when you just finish updating
the BIOS, you must boot up the system first, and then shut it down before you do
the clear-CMOS action.
If you clear the CMOS, the case open may be detected. Please adjust the BIOS option
"Clear Status" to clear the record of previous chassis intrusion status.
Short: Clear CMOS
Open: Default
2-pin Jumper
H410M/ac
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