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EPU Power Saving Mode [Disabled], Max CPU Cache Ratio [Auto]

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4-Core Ratio Limit [Auto] Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 4-Core Limit value that must be higher than or equal to the 3-Core Ratio Limit. If you assign a value for 4-Core Ratio Limit, do not set the 1-Core Ratio Limit, 2-Core Ratio Limit, and 3-Core Ratio to [Auto]. Min CPU Cache Ratio [Auto] Allows you to set the minimum possible ratio on the Uncore part of the processor. Use the or keys to adjust the value. The values depend on the CPU installed. Max CPU Cache Ratio [Auto] Allows you to set the maximum possible ratio on the Uncore part of the processor. Use the or keys to adjust the value. The values depend on the CPU installed. Memory Frequency [Auto] Allows you to set the memory operating frequency. The configuration options vary with the BCLK/PCIE Frequency item settings. CPU Graphics Max. Ratio [Auto] Allows you to optimize the CPU Graphics Ratio depending on the system loading. Use the or keys to adjust the value. EPU Power Saving Mode [Disabled] Allows you to enable or disable the EPU power saving function. Configuration options: [Disabled] [Enabled] DRAM Timing Control The subitems in this menu allow you to set the DRAM timing control features. Use the or keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the key. Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings. Chapter 3 ASUS P9D WS 3-11

Section	Page
Notices	6
Safety information	7
About this guide	8
P9D WS specifications summary	10
Chapter 1: Product introduction	13
1.1 Welcome!	13
1.2 Package contents	13
1.3 Special features	14
1.3.1 Product highlights	14
1.3.2 ASUS Workstation Exclusive Features	15
1.3.3 ASUS features	16
Chapter 2: Hardware information	19
2.1 Before you proceed	19
2.2 Motherboard overview	20
2.2.1 Motherboard layout	20
2.2.2 Central Processing Unit (CPU)	22
2.2.3 System memory	23
2.2.4 Expansion slots	29
2.2.5 Onboard buttons and switches	31
2.2.6 Onboard LEDs	34
2.2.7 Jumper	39
2.2.8 Internal connectors	41
2.3 Building your computer system	52
2.3.1 Additional tools and components to build a PC system	52
2.3.2 CPU installation	53
2.3.3 CPU heatsink and fan assembly installation	55
2.3.4 DIMM installation	57
2.3.5 Motherboard installation	58
2.3.6 ATX Power connection	60
2.3.7 SATA device connection	61
2.3.8 Front I/O Connector	62
2.3.9 Expansion Card installation	63
2.3.10 BIOS update utility	64
2.3.11 Rear panel connection	65
2.3.12 Audio I/O connections	66
2.4 Starting up for the first time	69
2.5 Turning off the computer	69
Chapter 3: BIOS setup	71
3.1 Knowing BIOS	71
3.2 BIOS setup program	72
3.2.1 EZ Mode	73
3.2.2 Advanced Mode	74
3.3 My Favorites	76
3.4 Main menu	77
3.5 Ai Tweaker menu	79
3.6 Advanced menu	94
3.6.1 CPU Configuration	95
3.6.2 PCH Configuration	98
3.6.3 SATA Configuration	99
3.6.4 System Agent Configuration	101
3.6.5 USB Configuration	103
3.6.6 Platform Misc Configuration	104
3.6.7 Onboard Devices Configuration	105
3.6.8 APM	107
3.6.9 Network Stack	108
3.7 Monitor menu	109
3.8 Boot menu	112
3.9 Tools menu	118
3.9.1 ASUS EZ Flash 2 Utility	118
3.9.2 ASUS O.C. Profile	118
3.9.3 ASUS SPD Information	119
3.10 Exit menu	120
3.11 Updating BIOS	121
3.11.1 EZ Update	121
3.11.2 ASUS EZ Flash 2	122
3.11.3 ASUS CrashFree BIOS 3	123
3.11.4 ASUS BIOS Updater	124
Chapter 4: Software support	127
4.1 Installing an operating system	127
4.2 Support DVD information	127
4.2.1 Running the support DVD	127
4.2.2 Obtaining the software manuals	128
4.3 Software information	129
4.3.1 AI Suite 3	129
4.3.2 DIGI+ VRM	131
4.3.3 EPU	133
4.3.4 Fan Xpert 2	134
4.3.5 USB 3.0 Boost	136
4.3.6 EZ Update	137
4.3.7 Network iControl	138
4.3.8 System Information	140
4.3.9 USB BIOS Flashback	142
4.3.10 USB Charger+	143
4.3.11 Audio configurations	144
Chapter 5: Multiple GPU technology support	147
5.1 ATI® CrossFireX™ technology	147
5.1.1 Requirements	147

Match case Limit results 1 per page

ASUS P9D WS

3-11

Chapter 3

4-Core Ratio Limit [Auto]

Select

[Auto]

to apply the CPU default Turbo Ratio setting or manually

assign a 4-Core Limit value that must be higher than or equal to the 3-Core

Ratio Limit.

If you assign a value for 4-Core Ratio Limit, do not set the 1-Core Ratio Limit, 2-Core Ratio

Limit, and 3-Core Ratio to

[Auto]

Min CPU Cache Ratio [Auto]

Allows you to set the minimum possible ratio on the Uncore part of the processor. Use the

<+> or <-> keys to adjust the value. The values depend on the CPU installed.

Max CPU Cache Ratio [Auto]

Allows you to set the maximum possible ratio on the Uncore part of the processor. Use the

<+> or <-> keys to adjust the value. The values depend on the CPU installed.

Memory Frequency [Auto]

Allows you to set the memory operating frequency. The conﬁguration options vary with the

BCLK/PCIE Frequency item settings.

CPU Graphics Max. Ratio [Auto]

Allows you to optimize the CPU Graphics Ratio depending on the system loading. Use the

<+> or <-> keys to adjust the value.

EPU Power Saving Mode [Disabled]

Allows you to enable or disable the EPU power saving function.

Conﬁguration options: [Disabled] [Enabled]

DRAM Timing Control

The subitems in this menu allow you to set the DRAM timing control features. Use the <+> or

<-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and

press the <Enter> key.

Changing the values in this menu may cause the system to become unstable! If this

happens, revert to the default settings.