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ASUS Z87-A
1-24
IRQ assignments for this motherboard
A B C D E F G H
Intel PCH SATA
controller #0
– – – shared – – – –
Intel PCH SATA
controller #1
– – – shared – – – –
SMBUS Controller – – shared – – – – –
Thermal Controller – – shared – – – – –
XHCI – – – – – shared – –
EHCI #0 – – – – – – – shared
EHCI #1 – – – – shared – – –
PCIE x16_1 shared – – – – – – –
PCIE x16_2 shared – – – – – – –
PCIE x16_3 – shared – – – – – –
PCIE x1_1 – – – shared – – – –
PCIE x1_2 – – – shared – – – –
PCI1 – – shared – – – – –
PCI2 – – – shared – – – –
Realtek 8111GR LAN – – shared – – – – –
ASMedia 1083 – – shared – – – – –
1.6 Onboard buttons
case system. This is ideal for overclockers and gamers who continually change settings to
enhance system performance.
1. MemOK! button
Installing DIMMs that are not compatible with the motherboard may cause system
boot failure, and the DRAM_LED near the MemOK! switch lights continuously. Press
and hold the MemOK! button until the DRAM_LED starts blinking to begin automatic
memory compatibility tuning for successful boot.