MotherboardZ87-K

1-2Chapter 1: Product introductionZ87-KPlace this side towards the rear of the chassis1.2.3 Motherboard layoutZ87-KPCIEX16_1PCIEX16_2PCIEX1_1PCIEX1_2

ASUS Z87-K1-31.2.4 Layout contentsConnectors/Jumpers/Slots/LED Page1. Serial port connector (10-1 pin COM) 1-132. ATX power connectors (24-pin EATXP

1-4Chapter 1: Product introduction1.3.1 Installing the CPU123ABUnplug all power cables before installing the CPU.• Ensure that you install the corre

ASUS Z87-K1-5ABC541.3.2 CPU heatsink and fan assembly installationApply the Thermal Interface Material to the CPU heatsink and CPU before you install

1-6Chapter 1: Product introduction3 4ABBATo uninstall the CPU heatsink and fan assembly21To install the CPU heatsink and fan assembly2BAAB1

ASUS Z87-K1-71.4 System memory1.4.1 OverviewThis motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. A D

1-8Chapter 1: Product introduction• The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard wa

ASUS Z87-K1-92. Remove the DIMM from the socket.Support the DIMM lightly with your ngers when pressing the retaining clips. The DIMM might get damag

1-10Chapter 1: Product introduction1.5.3 PCI slotsThe PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply wi

ASUS Z87-K1-11Z87-KZ87-K Clear RTC RAM1 2 2 3Normal(Default)Clear RTCCLRTCTo erase the RTC RAM:1. Turn OFF the computer and unplug the power cord.2.

iiE8191First Edition V1April 2013Copyright © 2013 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and softwar

1-12Chapter 1: Product introductionLAN portSpeed LEDActivity Link LEDActivity/Link LED Speed LEDStatus Description Status DescriptionOff No link OFF 1

ASUS Z87-K1-13• Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a Windows® OS environment and after USB 3.0 driver inst

1-14Chapter 1: Product introduction3. Digital audio connector (4-1 pin SPDIF_OUT)This connector is for an additional Sony/Philips Digital Interface (

ASUS Z87-K1-155. USB 2.0 connectors (10-1 pin USB 78, USB1112, USB1314)These connectors are for USB 2.0 ports. Connect the USB module cable to any of

1-16Chapter 1: Product introduction7. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1/2) Connect the fan cables to the fan connectors

ASUS Z87-K1-178. Intel® Z87 Serial ATA 6.0Gb/s connector (7-pin SATA6G_1~6 [yellow])This connector connects to Serial ATA 6.0 Gb/s hard disk drives v

1-18Chapter 1: Product introduction• System power LED (2-pin PWR_LED)This 2-pin connector is for the system power LED. Connect the chassis power LED

ASUS Z87-K1-191.9 Software support1.9.1 Installing an operating systemThis motherboard supports Windows® 7 (32bit/64bit) and Windows® 8 (32bit/64bit

ASUS Z87-K2-12.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore the B

2-2Chapter 2: Getting started2.1.2 ASUS EZ Flash 2The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility.Before

iiiContentsSafety information ... ivAbout this guide ...

ASUS Z87-K2-32.1.3 ASUS CrashFree BIOS 3 utilityThe ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le when it fa

2-4Chapter 2: Getting startedBooting the system to a DOS environment1. Insert the USB ash drive with the latest BIOS le and BIOS Updater to the USB

ASUS Z87-K2-53. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys to select the BIOS le and press <Enter

2-6Chapter 2: Getting started2.2 BIOS setup programUse the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens include

ASUS Z87-K2-7• The boot device options vary depending on the devices you installed to the system.• The Boot Menu(F8) button is available only when t

2-8Chapter 2: Getting startedMenu barThe menu bar on top of the screen has the following main items:My Favorites For saving the frequently-used system

ASUS Z87-K2-9Pop-up windowSelect a menu item and press <Enter> to display a pop-up window with the conguration options for that item.Scroll bar

2-10Chapter 2: Getting started2.4 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu pro

ASUS Z87-K2-11• If you have forgotten your BIOS password, erase the CMOS Real Time Clock (RTC) RAM to clear the BIOS password. See section 1.6 Jumper

2-12Chapter 2: Getting started2.5 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changing

ivSafety informationElectrical safetyTo prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the s

ASUS Z87-K2-13Scroll down to display the following items:Target CPU Turbo-Mode Speed : xxxxMHzDisplays the target CPU Turbo-Mode speed.Target DRAM Spe

2-14Chapter 2: Getting started2.5.3 CPU Core Ratio [Auto]Allows you to set the CPU core ratio automatically or manually.[Auto] Sets all CPU Core Rat

ASUS Z87-K2-15[Auto] DRAM speed is set to the optimized settings.[100:133] The CPU bus speed to DRAM speed ratio is set to 100:133.[100:100] The CP

2-16Chapter 2: Getting startedDRAM RAS# ACT Time [Auto]Conguration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock]DRAM COMMAND Rate [Auto]Congurati

ASUS Z87-K2-17tRDRD_dd [Auto]Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]tWRRD [Auto]Conguration options: [Auto] [1 DRAM Clock] – [6

2-18Chapter 2: Getting started2.5.13 DIGI+ VRMCPU Load-Line Calibration [Auto]Load-line is dened by Intel VRM specication and affects CPU voltage.

ASUS Z87-K2-192.5.14 CPU Power ManagementThe subitems in this menu allow you to set the CPU ratio and features.Enhanced Intel® SpeedStep Technology [

2-20Chapter 2: Getting startedCPU Internal Power ConfigurationCPU Integrated VR Efciency Management [Auto]Allows you to manage the CPU integrated VR

ASUS Z87-K2-21[Adaptive Mode] is available for some specic CPU types.CPU Core Voltage Override [Auto]This item appears only when you set the CPU Core

2-22Chapter 2: Getting startedAdditional Turbo Mode CPU Cache Voltage [Auto]This item appears only when you set the CPU Cache Voltage to [Adaptive Mod

vWhere to nd more informationRefer to the following sources for additional information and for product and software updates.1. ASUS websitesThe ASUS

ASUS Z87-K2-23CPU System Agent Voltage Offset [Auto]This item allows you to set the CPU system agent voltage offset. Increase the value when increasin

2-24Chapter 2: Getting started2.6 Advanced menuThe Advanced menu items allow you to change the settings for the CPU and other system devices.Be cauti

ASUS Z87-K2-252.6.1 CPU CongurationThe items in this menu show the CPU-related information that the BIOS automatically detects.The items shown in su

2-26Chapter 2: Getting startedExecute Disable Bit [Enabled][Enabled] Enables the No-Execution Page Protection Technology.[Disabled] Forces the XD fe

ASUS Z87-K2-27Enhanced C1 state [Enabled][Enabled] Enables enhanced C1 state.[Disabled] Disables enhanced C1 state.CPU C3 Report [Enabled]Allows you

2-28Chapter 2: Getting startedEntry After [x]Allows you to set the wake-up time.The values range from 0 (immediately) to 120.Active Page Threshold Sup

ASUS Z87-K2-29S.M.A.R.T. Status Check [Enabled]S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When read/write of

2-30Chapter 2: Getting startedDMI Gen 2 [Auto]Allows you to enable or disable DMI Gen 2. Conguration options: [Auto] [Enabled] [Disabled]NB PCIe Con

ASUS Z87-K2-31EHCI Hand-off [Disabled][Enabled] Enables the support for operating systems without an EHCI hand-off feature.[Disabled] Disables the f

2-32Chapter 2: Getting startedRealtek PXE OPROM [Disabled]This item appears only when you set the previous item to [Enabled] and allows you to enable

viZ87-K specications summary(continued on the next page)CPU LGA1150 socket for 4th Generation Intel® CoreTM i7/i5/i3, Pentium®, Celeron® ProcessorsSu

ASUS Z87-K2-33Power On By Ring [Disabled][Disabled] Disables Ring to generate a wake event.[Enabled] Enables Ring to generate a wake event.Power On

2-34Chapter 2: Getting startedScroll down to display the following items:2.7.1 CPU Temperature [xxxºC/xxxºF]The onboard hardware monitor automaticall

ASUS Z87-K2-35CPU Upper Temperature [70]Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values range from 2

2-36Chapter 2: Getting startedChassis1/2 Fan Min. Duty Cycle(%) [60]Use the <+> and <-> keys to adjust the minimum chassis fan duty cycle.

ASUS Z87-K2-372.8.1 Fast Boot [Enabled][Enabled] Select to accelerate the boot speed.[Disabled] Select to go back to normal boot.The following four

2-38Chapter 2: Getting startedPOST Delay Time [3 sec]This item appears only when you set Boot Logo Display to [Enabled]. This item allows you to selec

ASUS Z87-K2-39[Disabled] Disable the CSM to fully support the Windows® Security Update and Security Boot.The following four items appear when you se

2-40Chapter 2: Getting startedPK ManagementThe Platform Key (PK) locks and secures the rmware from any non-permissible changes. The system veries th

ASUS Z87-K2-41DBX ManagementThe dbx (Revoked Signature database) lists the forbidden images of db items that are no longer trusted and cannot be loade

2-42Chapter 2: Getting started2.9 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <E

viiZ87-K specications summaryStorageIntel® Z87 Express Chipset- 6 x SATA 6.0 Gb/s ports (yellow) with RAID 0., 1, 5, 10 and Intel® Rapid Start Techn

ASUS Z87-K2-432.10 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to

Z87-KA-1AppendicesNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the fo

A-2AppendicesREACHComplying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published

Z87-KA-3ASUS contact informationASUSTeK COMPUTER INC.Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259Telephone +886-2-2894-3447Fax +886

A-4AppendicesDECLARATION OF CONFORMITYPer FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corpora

viiiZ87-K specications summaryASUS unique featuresASUS Q-Design - ASUS Q-Slot ASUS Quiet Thermal Solution: - ASUS Fan Xpert 2 featuring Fan Auto T

ASUS Z87-K1-1Product introduction11.1 Before you proceedTake note of the following precautions before you install motherboard components or change an