User manual ABIT PR5

[. . . ] F C C I n f o rm ati o n Federal Communications Commission Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class B Digital Device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] The pin connector assignments are in the Configuration Quick Reference if you need them. CPU Fan Power Connector The CPU fan power connector is a 3-pin connector header which will accept either a 2-pin or 3-pin CPU fan power lead connector. Some CPU fans have a connector for a standard power lead from the system power supply. If your CPU fan is attached to the top of the CPU chip, as with some Intel Pentiums, the power lead connector should fit this onboard connector. If you are connecting a lead from a CPU cooling fan to this connector, make sure you identify which wire is the positive wire and orient the lead' s connector so that the positive wire connects to the positive pin on the onboard connector. The pin connector assignments are in the Configuration Quick Reference if you need them. DIP Switch & Jumper Summary This section lists the function of all the DIP switches and jumpers on the board for your reference. DIP Switch & Jumper Functions Function DS DIP Block Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Switch 6 Switch 7 Switch 8 VC DIP Block Pin 1 ­ 8 Jumpers JP1 JP3 JP8 JP10 JP11 L2 Cache Clear CMOS Flash ROM Type Reserved DIMM Voltage Vcore/Vio voltage settings External Clock Factor External Clock Factor External Clock Frequency External Clock Frequency ISA Bus Clock DRAM Refresh External Clock Frequency Reserved Other Jumper Functions There are two other jumpers on the PR5 which have not been mentioned yet. One is JP3 (Clear CMOS Memory) and the other is JP8 (Flash ROM Type). JP3: Clear CMOS Memory The onboard CMOS memory is where the system configuration information set by the BIOS Setup program is stored. If you make entries in the Setup program that will prevent the computer from booting up or you set a password and then forget it, you will not be able to use the computer. If this happens, you must clear (erase) the CMOS memory and enter new configuration information in the BIOS Setup program. Replace the cap over Pins 1&2 When you are done, you can start up your computer and run the Setup program to re-enter the system configuration information. The location of JP3 is shown below. Jumper JP3 Location JP3: Clear CMOS Memory To clear CMOS memory, remove the jumper cap from pins 1&2 and place it over pins 2&3 for five seconds, then replace the cap over pins 1&2. JP3 Clear CMOS x x x Pin 1 JP8: Flash ROM Type This jumper is set at the factory for the type of Flash ROM chip installed. You should not change the setting and it is shown here for reference only. This jumper may be replaced by hardwiring directly onboard on some boards. The settings and location are shown below. Jumper JP8 Location JP8: Flash Chip Type This jumper is factory set for the type of Flash Memory Chip installed. The jumper may not be present on some boards, with the setting hardwired on the board instead. JP8 Flash Type x x x Pin 1 JP8: Flash Memory Chip Type Pins 1-2 Pins 2-3 5-Volt Chip 12-Volt Chip Short Short Note: Jumper may not be present and may be hardwired instead Technical Information This section covers three topics: · CPU Specifications Detailed information on CPU specifications to help you identify precisely the CPU you want to install, so that you can determine the correct configuration settings. Section 4 CPU Specifications IDE Installation Guide Technical Support · IDE Installation Guide A guide to installing IDE devices that connect to the onboard Enhanced IDE controller. · Technical Support Useful information to answer questions and help make solving problems easier. CP U S pec if icatio ns This section is made up of tables and diagrams designed to help you identify the CPU you want to install. You need to identify your CPU in order to determine the correct configuration settings. CPUs vary within a specific type; a 120MHz Pentium for example, can have different power and timing specifications depending on which type and " Step" (version) it is. To identify a CPU you' ll need to examine the chip to obtain specification information that is printed on the chip. The diagrams for AMD and Cyrix CPUs explain how to interpret the information on the chip. Intel CPUs This section lists the specifications for Intel Pentium CPUs. The following tables use some abbreviations as follows: Power STD ­ 3. 15V ~ 3. 465V (Suggested setting 3. 38V) VR ­ 3. 3V ~ 3. 465V (Suggested setting 3. 38V) VRE ­ 3. 45V ~ 3. 6V (Suggested setting 3. 52V) Ti m i n g STD ­ Standard Timing MD ­ Minim um Delay (Shorter m inim um valid delay AC timing for some signals) KIT ­ Supports timing for C55/C88 cache chipsets Also, please note the following: P54C Beginning with the P54C E-Step, Standard timing was replaced by existing Min Delay timing. P54CS P54CS PPGA UP:No DP, No APIC, No FRC Beginning with the P54C E-Step, Standard timing was replaced by existing Min Delay timing. A-2 Step & B Step: Vcc and timing on production stepping is 2. 8V +/- 0. 1V. Software Configuration This section explains the information you need to know to establish your systems basic configuration and customized settings and also has information on software that comes with your PR5 mainboard. The first part of this section is about the BIOS CMOS Setup Utility program. [. . . ] Scenario 1: We' ll assume your system includes: the PR5 mainboard with CPU, DRAM and COAST cache module; hard drive, floppy drive, CD-ROM drive, display card, MPEG card, SCSI card and sound card. If you have a problem, try the following procedures: If the system won' t start: · Try installing another brand/model display card and see if the system will start. If it does, please note the display card model, mainboard model, CPU, BIOS identification number and a description of the problem. If the system will start: · Remove all expansion cards except the display card. [. . . ]