User manual ASUS P5Q-E QUICK START GUIDE

[. . . ] P5Q-E Series Motherboard E4144 First Edition August 2008 Copyright © 2008 ASUSTeK COMPUTER INC. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. [. . . ] Pull-In of CHA/B PH1/2/3/4 [Disabled] Set this item to [Enabled] to apply enhancement on DRAM Channel A and B, Phase 1 to 4. The number of phases is determined by DRAM frequency and FSB strap. Configuration options: [Disabled] [Enabled] The following ten (10) items on the next page are adjusted by typing the desired values using the numeric keypad and press the <Enter> key. You can also use the <+> and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the <Enter> key. ASUS P5Q-E Series 3-19 3. 4. 12 CPU Voltage [Auto] Allows you to set the CPU VCore voltage. The values range from 0. 85000V to 2. 10000V* with a 0. 00625V interval. · Refer to the CPU documentation before setting the CPU Vcore voltage. Setting a high VCore voltage may damage the CPU permanently, and setting a low VCore voltage may make the system unstable. The value [2. 10000V] of the CPU Voltage item is supported only if the OV_CPU jumper is enabled; otherwise, the maximum voltage supported is [1. 70000V]. CPU / Northbridge overvoltage setting on page 2-24 for details. · 3. 4. 13 CPU GTL Voltage Reference(0/2) [Auto] Allows you to set the CPU GTL voltage reference. The values range from 0. 370x to 0. 760x with a 0. 005x interval. Different ratio might enhance CPU overclocking ability. 3. 4. 14 CPU GTL Voltage Reference(1/3) [Auto] Allows you to set the CPU GTL voltage reference. The values range from 0. 410x to 0. 800x with a 0. 005x interval. Different ratio might enhance CPU overclocking ability. 3. 4. 15 CPU PLL Voltage [Auto] Allows you to set the CPU PLL voltage. The values range from 1. 50V to 2. 78V with a 0. 02V interval. 3. 4. 16 FSB Termination Voltage [Auto] Allows you to set the front side bus termination voltage. The values range from 1. 20V* to 1. 90V with a 0. 02V interval. The minimum value of this item becomes 1. 10V when a 45nm CPU is installed. 3. 4. 17 DRAM Voltage [Auto] Allows you to set the DRAM voltage. The values range from 1. 80V to 3. 08V with a 0. 02V interval. 3. 4. 18 NB Voltage [Auto] Allows you to set the North Bridge voltage. The values range from 1. 10V to 2. 2V* with a 0. 02V interval. 3-20 Chapter 3: BIOS setup · The value [2. 2V] of the NB Voltage item is supported only if the OV_NB jumper is enabled; otherwise, the maximum voltage supported is [1. 9V]. CPU / Northbridge overvoltage setting on page 2-24 for details. Setting the CPU PLL Voltage, FSB Termination Voltage, DRAM Voltage and NB Voltage items to a high level may damage the chipset, memory module and CPU permanently. Some values of the CPU PLL Voltage, FSB Termination Voltage, DRAM Voltage and NB Voltage items are labeled in different color, indicating the risk levels of high voltage settings. The system may need better cooling system to work stably under high voltage settings. Blue Yellow 1. 80V~2. 00V 1. 40V~1. 90V 2. 00V~2. 20V 1. 28V~1. 40V Purple 2. 02V~2. 20V N/A 2. 22V~2. 40V 1. 42V~1. 58V Red 2. 22V~2. 78V N/A 2. 42V~3. 08V 1. 60V~2. 20V · · · CPU PLL Voltage FSB Termination Voltage DRAM Voltage NB Voltage 1. 50V~1. 78V 1. 20V~1. 38V 1. 80V~1. 98V 1. 10V~1. 26V 3. 4. 19 NB GTL Voltage Reference [Auto] Allows you to set the Northbridge GTL voltage reference. [. . . ] Install the 64-bit drivers for expansion cards or add-on devices, if any. Refer to the expansion card or add-on device(s) documentation, or visit the related website, to verify if the card/device supports a 64-bit system. Install an Intel® CPU that supports the Intel® EM64T. A. 2 Enhanced Intel SpeedStep® Technology (EIST) · The motherboard comes with a BIOS file that supports EIST. You can download the latest BIOS file from the ASUS website (www. asus. com/ support/download/) if you need to update the BIOS. Visit www. intel. com for more information on the EIST feature. · A. 2. 1 · · · System requirements Before using EIST, check your system if it meets the following requirements: Intel® processor with EIST support Operating system with EIST support (Windows® Vista, Windows® XP SP2 / Linux 2. 6 kernel or later versions) BIOS file with EIST support ASUS P5Q-E Series A-1 A. 2. 2 1. 7. Using the EIST To use the EIST feature: Turn on the computer, then enter the BIOS Setup. [. . . ]