![[H]ardOCP](/images/blank.gif){kind=small}
- Date:
- Wednesday, January 24, 2007
- Author:
- Morry Teitelman
- Editor:
- Kyle Bennett
- Google +1
ASUS P5B-E
As a mainstream style follow up to their award winning Intel 975X based board, ASUS released the P5B-E on to the market. The little brother to the P5W DH Deluxe, the P5B-E seems to be able to hang just fine with the big boys.
BIOS (continued)
The JumperFree Configuration submenu is a centralized access point for all voltage and speed related configuration options. Ultimately, the AI Tuning option determines which options are user configurable. The Auto and Standard settings are the most restrictive, allowing for user configuration of the memory speed only. All other options are automatically adjusted to default settings by the BIOS. The AI N.O.S. setting allows for user configuration of the memory speed and system voltages, with the system clock speeds determined by the N.O.S. Mode and Turbo N.O.S. options. The BIOS automatically sets the desired overclocking level within the Turbo N.O.S. setting when the system meets the criteria set by the selected setting within the N.O.S. Mode option. Setting the AI Tuning option to Manual allows the end user the most freedom in setting the system frequency and voltage options, with all settable options user viewable.
The CPU Frequency option determines the base CPU FSB, with a 650MHz maximum setting. Note that the CPU Frequency option does not have a menu selection interface, instead relying on user input numbers for the frequency selection. The DRAM Frequency option configures the memory speed, with the settings shown as the actual speed based on the currently selected CPU Frequency setting rather than speeds based on a default 200 or 266MHz CPU FSB. The PCI Express Frequency option configures the PCI Express bus speed, with a 150MHz allowable maximum. The PCI bus can be locked at a static 33MHz using the PCI Clock Synchronization Mode option, which is particularly useful when attempting the higher CPU FSB speed overclocks.
The Memory Voltage option controls the power supplied to your seated memory modules, with a 2.45V maximum. Note that it is highly recommended to use active memory cooling when using voltages above 2.15V. The CPU voltage can be set to a massive 1.7000V maximum using the CPU VCore Voltage option. Depending on the CPU, this is a full 0.3V over default voltage. The FSB Termination Voltage option controls the Vtt voltage, with a 1.450V maximum allowed. The Northbridge chipset voltage is set using the NB VCore option, with a 1.70V ceiling. The Southbridge chipset voltage is split between 2 settings, the SB Vcore (SATA,PCIE) option and the ICH Chipset Voltage option. The SB Vcore (SATA,PCIE) option can be set to a maximum of 1.80V, while the ICH Chipset Voltage option has a 1.215V maximum.
All board memory timing related options are found within the North Bridge Configuration submenu, which is the only submenu listed within the Advanced Chipset Settings submenu.
With the Configure DRAM Timing by SPD option disabled, the following memory timing options become user accessible for configuration: cas latency; RAS to CAS delay; RAS precharge; active to precharge delay; write recover delay; row refresh cycle delay (shown as TRFC); RAS to RAS delay (shown as TRRD); write to read delay; read to precharge delay; write to precharge delay; and static read control. Note that on most of the listed memory timings options, the numerically lower setting forces more aggressive memory operation. For the TRRD, Rank Write to Read Delay, Read to Precharge Delay, and Write to Precharge Delay options, there is no pop-up menu displayed. These options are changed by manually entering a value or by using the (+) and (-) keys.