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Asus P5QC User Manual - Page 38

Memory configurations, Vista x64 Edition - compatible memory

UPC - 610839162864

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2.4.2 Memory configurations You may install 512 MB, 1 GB, 2 GB and 4GB unbuffered and non‑ECC DDR2 DIMMs or 1 GB, 2 GB and 4GB unbuffered and non‑ECC DDR3 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • For DDR2, it is recommended to install the memory modules from the black slots for better overclocking capability. For DDR3, only install the memory modules in the orange slots. • Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. • This motherboard does not support memory modules made up of 128 Mb chips. For DDR2 DIMMs: • If you install two 2 GB or four 1 GB memory modules, the system may only recognize less than 3 GB because the address space is reserved for other critical functions. This limitation appears on Windows® XP/Vista 32-bit operation system which does not support Physical Address Extension (PAE). • If you install Windows® XP/Vista 32-bit operation system, a total memory of less than 3GB is recommended. • Due to chipset limitation, this motherboard can only support up to 16 GB on the operating systems listed below. You may install a maximum of 4 GB DIMMs on each slot. 64-bit Windows® XP Professional x64 Edition Windows® Vista x64 Edition • The default memory operation frequency is dependent on its SPD. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. To operate at the vendormarked or at a higher frequency, see section 3.4 Ai Tweaker menu for manual memory frequency adjustment. • The memory modules may require a better cooling system to work stably under full loading (4 DIMMs) or overclocking setting. 2-12 Chapter 2: Hardware information

Section	Page
Contents	3
Notices	8
Safety information	9
About this guide	10
P5QC specifications summary	12
Chapter 1: Product introduction	15
1.1 Welcome!	17
1.2 Package contents	17
1.3 Special features	18
1.3.1 Product highlights	18
1.3.2 ASUS unique features	19
1.3.3 ASUS Intelligent Performance and Overclocking features	23
Chapter 2: Hardware information	25
2.1 Before you proceed	27
Onboard LED	27
2.2 Motherboard overview	28
2.2.1 Motherboard layout	28
2.2.2 Layout contents	29
2.2.3 Placement direction	30
2.2.4 Screw holes	30
2.3 Central Processing Unit (CPU)	31
2.3.1 Installing the CPU	32
2.3.2 Installing the CPU heatsink and fan	35
2.3.3 Uninstalling the CPU heatsink and fan	36
2.4 System memory	37
2.4.1 Overview	37
2.4.2 Memory configurations	38
2.4.3 Installing a DIMM	43
2.4.4 Removing a DIMM	43
2.5 Expansion slots	44
2.5.1 Installing an expansion card	44
2.5.2 Configuring an expansion card	44
2.5.3 Interrupt assignments	45
2.5.4 PCI slots	46
2.5.5 PCI Express x1 slots	46
2.5.6 PCI Express 2.0 x16 slot	46
2.6 Jumpers	47
2.7 Connectors	50
2.7.1 Rear panel connectors	50
2.7.2 Internal connectors	52
2.8 Starting up for the first time	65
2.9 Turning off the computer	66
2.9.1 Using the OS shut down function	66
2.9.2 Using the dual function power switch	66
Chapter 3: BIOS setup	67
3.1 Managing and updating your BIOS	69
3.1.1 ASUS Update utility	69
3.1.2 ASUS EZ Flash 2 utility	72
3.1.3 AFUDOS utility	73
3.2 BIOS setup program	75
3.2.1 BIOS menu screen	76
3.2.2 Menu bar	76
3.2.3 Navigation keys	76
3.2.4 Menu items	77
3.2.5 Sub-menu items	77
3.2.6 Configuration fields	77
3.2.7 Pop-up window	77
3.2.8 Scroll bar	77
3.2.9 General help	77
3.3 Main menu	78
3.3.1 System Time [xx:xx:xx]	78
3.3.2 System Date [Day xx/xx/xxxx]	78
3.3.3 Legacy Diskette A [1.44M, 3.5 in.]	78
3.3.4 Language [English]	78
3.3.5 SATA 1-6	79
3.3.6 Storage Configuration	80
3.3.7 AHCI Configuration	81
3.3.8 System Information	82
3.4 Ai Tweaker menu	83
3.4.1 Ai Overclock Tuner [Auto]	83
3.4.2 CPU Ratio Setting [Auto]	84
3.4.3 FSB Strap to North Bridge [Auto]	84
3.4.4 DRAM Frequency [Auto]	84
3.4.5 DRAM Timing Control [Auto]	85
3.4.6 DRAM Static Read Control [Auto]	86
3.4.7 DRAM Dynamic Write Control [Auto]	86
3.4.8 DRAM Read Training [Auto]	86
3.4.9 DRAM Write Training [Auto]	87
3.4.10 MEM. OC Charger [Auto]	87
3.4.11 Ai Clock Twister [Auto]	87
3.4.12 Ai Transaction Booster [Auto]	87
3.4.13 CPU Voltage [Auto]	87
3.4.14 CPU PLL Voltage [Auto]	88
3.4.15 FSB Termination Voltage [Auto]	88
3.4.16 DRAM Voltage [Auto]	88
3.4.17 NB Voltage [Auto]	88
3.4.18 SB Voltage [Auto]	89
3.4.19 PCIE SATA Voltage [Auto]	89
3.4.20 Load-Line Calibration [Auto]	89
3.4.21 CPU Spread Spectrum [Auto]	89
3.4.22 PCIE Spread Spectrum [Auto]	89
3.5 Advanced menu	90
3.5.1 CPU Configuration	90
3.5.2 Chipset	92
3.5.3 Onboard Device Configuration	93
3.5.4 USB Configuration	94
3.5.5 PCIPnP	95
3.6 Power menu	96
3.6.1 Suspend Mode [Auto]	96
3.6.2 Repost Video on S3 Resume [No]	96
3.6.3 ACPI 2.0 Support [Disabled]	96
3.6.4 ACPI APIC Support [Enabled]	96
3.6.5 APM Configuration	97
3.6.6 Hardware Monitor	98
3.7 Boot menu	100
3.7.1 Boot Device Priority	100
3.7.2 Boot Settings Configuration	101
3.7.3 Security	102
3.8 Tools menu	104
3.8.1 ASUS EZ Flash 2	104
3.8.2 Drive Xpert Control [Auto]	105
3.8.3 Drive Xpert Mode Update [Last setting]	105
3.8.4 Express Gate	106
3.8.5 ASUS O.C. Profile	107
3.8.6 AI NET 2	108
3.9 Exit menu	109
Chapter 4: Software support	111
4.1 Installing an operating system	113
4.2 Support DVD information	113
4.2.1 Running the support DVD	113
4.2.2 Drivers menu	114
4.2.3 Utilities menu	115
4.2.4 Make disk menu	117
4.2.5 Manual menu	118
4.2.6 ASUS Contact information	118
4.2.7 Other information	119
4.3 Software information	121
4.3.1 ASUS MyLogo 2™	121
4.3.2 AI NET2	123
4.3.3 ASUS PC Probe II	124
4.3.4 ASUS AI Suite	130
4.3.5 ASUS AI Nap	132
4.3.6 ASUS Fan Xpert	133
4.3.7 ASUS AI Booster	135
4.3.8 ASUS EPU–6 Engine	136
4.3.9 ASUS AI Direct Link	140
4.3.10 Audio configurations	142
4.3.11 ASUS Drive Xpert	150
4.3.12 ASUS Express Gate	161
4.4 RAID configurations	171
4.4.1 RAID definitions	171
4.4.2 Installing Serial ATA hard disks	172
4.4.3 Intel® RAID configurations	172
4.5 Creating a RAID driver disk	180
4.5.1 Creating a RAID driver disk without entering the OS	180
4.5.2 Creating a RAID driver disk in Windows®	180
Appendix: CPU features	183
A.1 Intel® EM64T	185
Using the Intel® EM64T feature	185
A.2 Enhanced Intel SpeedStep® Technology (EIST)	185
A.2.1 System requirements	185
A.2.2 Using the EIST	186
A.3 Intel® Hyper-Threading Technology	187