Asus P8H77-M User Manual

Chapter 2: BIOS information2-14
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel
®
SpeedStep Technology (EIST).
[Disabled] Disables this function.
[Enabled] The operating system dynamically adjusts the processor voltage and
core frequency which may result in decreased average consumption and
decreased average heat production.
Turbo Mode [Enabled]
This item appears only when you set the previous item to [Enabled].
[Enabled] Allows processor cores to run faster than marked frequency in specic
conditions.
[Disabled] Disables this function.
The following three items appear only when you set both the Enhanced Intel SpeedStep
Technology and Turbo Mode items to [Enabled].
Long Duration Power Limit [Auto]
Allows you to limit the turbo ratio’s long duration power.
Use the <+> and <-> keys to adjust the value.
Long Duration Maintained [Auto]
Allows you to maintain the turbo ratio’s long duration power.
Use the <+> and <-> keys to adjust the value.
Short Duration Power Limit [Auto]
Allows you to limit the turbo ratio’s long duration power.
Use the <+> and <-> keys to adjust the value.
Primary Plane Current Limit [Auto]
Maximum instantaneous current allowed at any given time for CPU cores
Use <+> and <-> key to adjust the value at 0.125A increment. .
Secondary Plane Current Limit [Auto]
Maximum instantaneous current allowed at any given time for Internal Graphics cores.
Use <+> and <-> key to adjust the value at 0.125A increment.
2.4.7 DIGI+ VRM
CPU Load-Line Calibration [Auto]
Load-line is dened by Intel VRM specications, and affects CPU voltage. The CPU working
voltage will decrease proportionally to CPU loading. Higher value gets a higher voltage, and
a better overclocking performance, but increases the CPU and VRM thermal conditions.
This item allows you to adjust the voltage range from the following percentages to boost the
system performance: 0% (Regular), 25% (Medium), 50% (High), 75% (Ultra High) and 100%
(Extreme). Conguration options: [Auto] [Regular] [Medium] [High] [Ultra High] [Extreme]
The actual performance boost may vary depending on your CPU specication.

Asus P8H77-M Specifications

General

ECC	No
Non-ECC	Yes
Memory voltage	1.5 V
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR3-SDRAM
Maximum internal memory	32 GB
Supported memory clock speeds	1066, 1333, 1600, 1800, 1866, 2000, 2133, 2200 MHz
Supported memory module capacities	16GB, 1GB, 2GB, 4GB, 8GB
System bus rate	5 GT/s
Processor socket	LGA 1155 (Socket H2)
Processor manufacturer	Intel
Compatible processor series	Intel Core i3, Intel Core i5, Intel Core i7
Maximum number of SMP processors	1
USB 2.0 connectors	3
Number of SATA III connectors	2
Number of Parallel ATA connectors	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Audio chip	Realtek ALC887
Cooling type	Passive
Component for	PC
Power source type	ATX
Motherboard chipset	Intel H77
PC health monitoring	CPU, FAN, Temperature
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
RAID levels	0, 1, 5, 10
Supported storage drive interfaces	SATA II, SATA III
Cables included	SATA
Graphics card	HD Graphics
OpenGL version	3.2
DirectX version	11
Maximum resolution	2048 x 1536 pixels
Maximum graphics card memory	1696 MB
Parallel processing technology support	2-Way CrossFireX, LucidLogix Virtu, Quad-GPU CrossFireX
PCI Express slots version	2.0, 3.0
PCI Express configurations	1x4, 1x16
LAN controller	Realtek RTL8111F
Wi-Fi standards	Not supported
Networking features	Gigabit LAN
Ethernet interface type	Gigabit Ethernet
BIOS type	EFI AMI
ACPI version	2.0a
BIOS memory size	64 Mbit

Weight and Dimensions

Width	245 mm