User manual ASUS TW300-E5/PI4

[. . . ] TW300-E5/PI4 Intel® LGA775 CoreTM 2 Extreme / CoreTM 2 Quad / CoreTM 2 Duo Series Workstation User's Manaual E3822 First Edition May 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. 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. In no event shall ASUS, its directors, officers, employees, or agents be liable for any indirect, special, incidental, or consequential damages (including damages for loss of profits, loss of business, loss of use or data, interruption of business and the like), even if ASUS has been advised of the possibility of such damages arising from any defect or error in this manual or product. [. . . ] The value of this item is auto-detected by the BIOS. Use the <+> and <-> keys to adjust the FSB frequency. You can also type the desired CPU frequency using the numeric keypad. Refer to the table below for the correct Front Side Bus and CPU External Frequency settings. FSB/CPU External Frequency Synchronization Front Side Bus FSB 1333 FSB 1066 FSB 800 CPU External Frequency 333 MHz 266 MHz 200 MHz ASUS TW300-E5/PI4 4-19 The following item appears only when you set the Ai Overclock Tuner item to [Manual], [N. O. S. ] and [X. M. P. ]. PCIE Frequency [Auto] Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust the PCIE frequency. The values range from 100 to 150. 4. 4. 4 DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-835MHz] [DDR2-1002MHz] [DDR2-1066MHz] [DDR2-1111MHz] [DDR2-133MHz] [DDR2*1200 MHz*] The DRAM Frequency configuration options vary with the FSB Frequency settings. Selecting a very high DRAM frequency may cause the system to become unstable!If this happens, revert to the default setting. 4. 4. 5 4. 4. 6 DRAM Command Rate [Auto] DRAM CMD Skew on Channel A/B [Auto] Configuration options: [Auto] [1T] [2T] These items are adjustable only when you set the DRAM Command Rate item to [1T] and may help enhancing DRAM stability on 1T mode. Configuration options: [Auto] [Advance 175ps] [Advance 150ps] [Advance 125ps] [Advance 100ps] [Advance 75ps] [Advance 50ps] [Advance 25ps] [Normal] [Delay 25ps] [Delay 50ps] [Delay 75ps] [Delay 100ps] [Delay 125ps] [Delay 150ps] [Delay 175ps] 4. 4. 7 DRAM CLK Skew on Channel A/B [Auto] Adjusting these items may help enhancing DRAM overclocking ability. Configuration options: [Auto] [Advance 350ps] [Advance 300ps] [Advance 250ps] [Advance 200ps] [Advance 150ps] [Advance 100ps] [Advance 50ps] [Normal] [Delay 50ps] [Delay 100ps] [Delay 150ps] [Delay 200ps] [Delay 250ps] [Delay 300ps] [Delay 350ps] 4. 4. 8 DRAM Timing Control [Auto] Configuration options: [Auto] [Manual] 4-20 Chapter 4: BIOS setup · · The following sub-items apprear only when you set the DRAM Timing Control item to [Manual]. The configuration options for some of the following items vary depending on the DIMMs you install on the motherboard. CAS# Latency [ 5 DRAM Clocks] Configuration options: [3 DRAM Clocks] [4 DRAM Clocks] [5 DRAM Clocks] [6 DRAM Clocks] [7 DRAM Clocks] RAS# to CAS# Delay [ 5 DRAM Clocks] Configuration options: [3 DRAM Clocks] [4 DRAM Clocks]~[17 DRAM Clocks] [18 DRAM Clocks] RAS# Precharge [ 5 DRAM Clocks] Configuration options: [3 DRAM Clocks] [4 DRAM Clocks]~[17 DRAM Clocks] [18 DRAM Clocks] RAS# Active Time [15 DRAM Clocks] Configuration options: [3 DRAM Clocks] [4 DRAM Clocks]~[33 DRAM Clocks] [34 DRAM Clocks] RAS# to RAS# Delay [Auto] Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks] Row Refresh Cycle Time [Auto] Configuration options: [Auto] [20 DRAM Clocks] [25 DRAM Clocks] [30 DRAM Clocks] [35 DRAM Clocks] [42 DRAM Clocks] Write Recovery Time [Auto] Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks] Write to Read Delay [Auto] Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks] Read to Precharge Time [Auto] Configuration options: [Auto] [1 DRAM Clocks]~[15 DRAM Clocks] 4. 4. 9 4. 4. 10 DRAM Static Read Control [Auto] Ai Clock Twister [Auto] Configuration options: [Auto] [Disabled] [Enabled] Allows you to set the DRAM performance. Set this item to [Light] to enhance DRAM compatibility, or [Strong] to enhance DRAM performance. Configuration options: [Auto] [Moderate] [Light] [Strong] ASUS TW300-E5/PI4 4-21 4. 4. 11 Transaction Booster [Auto] Allows you to set the system performance. Configuration options: [Auto] [Disabled] [Enabled] Relax Level [1] This sub-item appears only when you set the Transaction Booster item to [Disabled]. Set this item to a higher level to get better compatibility. Use the <+> and <-> keys to adjust the value. Boost Level [1] This sub-item appears only when you set the Transaction Booster item to [Enabled]. Set this item to a higher level to get better performance. Use the <+> and <-> keys to adjust the value. The values range from 1 to 8. The following seven items on the next page appear only when you set the Ai Overclock Tuner item to [Manual] and [X. M. P. ] and are adjusted by typing the desired values using the numeric keypad and press the <Enter> key. [. . . ] Under Linux, use the Hyper-Threading compiler to compile the code. If you are using any other operating systems, disable the Hyper-Threading Technology item in the BIOS to ensure system stability and performance. Installing Windows® XP Service Pack 1 or later version is recommended. Make sure to enable the Hyper-Threading Technology item in BIOS before installing a supported operating system. [. . . ]