PB430.002 /03-04-94 |0| Copyright 1991-1994 Packard Bell Electronics

PB430/440/440T GENERAL ISSUES  

DX4 AND PENTIUM OVERDRIVE PROCESSORS                          |3| 11-17-94

There are two versions of the DX4 currently shipped. The first uses a 3.3V input tolerance and is designed for use with
motherboards that support this version of processor directly.  This requires that the motherboard has its own 3.3V power supply for the CPU.  This CPU is only sold as an OEM, therefore it is not available to the general public.

The second DX4ODP processor has a 5V input tolerance and is designed tobe backward compatible with all Intel Verified OverDrive Processor sockets.  The DX4ODP uses an on-board voltage regulator to reduce the external 5V down to the 3.3V the DX4 is designed to handle.

Both DX4 processors use the standard 168 pin configuration and have been released for sale.  Any end users interested in purchasing the 5V DX4 should be referred to Intel, which will refer the end user to a retailer.  The following Packard Bell motherboards have been successfully tested with the 5V DX4ODP processor: PB400, PB410, PB430,  and PB450.  The 3.3V DX4 processor will not work on any motherboards being shipped.

The Intel Pentium processor and Intel Pentium Overdrive Processor are different processors.  Systems stating that they are Pentium Overdrive ready will only accept the Pentium Overdrive processor not a Pentium processor.  Currently the Pentium Overdrive processor is not available.


COLOR CODE REFERENCE FOR THE NEW PHASE II SYSTEMS             |0|  10-24-94

As part of the new facelift, all phase II systems have color-coded  mouse, keyboard, and video connectors, as well as their respective adapters.  The box topper, the 22"x19.5" sheet of paper included with every Packard Bell unit, is a quick reference guide that the end user can use to match and plug the appropriate devices.  The color code is as follows:

PURPLE--Keyboard Port/Adapter
GREEN--Mouse Port/Adapter
ORANGE--Video Port/Adapter
GREY--Printer Port
YELLOW--External Serial Port


BLINKING SCROLL LOCK LED AND PB430                             |0| 07-26-94
After setting a "Video Powerdown" delay in setup, the Scroll Lock LED will flash when the "Video Powerdown" delay elapses.  The flashing Scroll Lock LED shows the system is currently in a video power-down  mode.  To disable this feature, enter setup, press <Page Down> and select Disabled for Video Powerdown.


NOTE TO CUSTOMER HARD DRIVE INFORMATION                        |0| 04-27-94
Systems with auto configure hard drive capability in CMOS, such as the PB430/440 and PB520, may not have the hard drive parameters on the Note to Customer.  The Type, Cyl, HD, Pre, LZ and Sec are all listed "AUTO" on the Note to Customer.  Use the "Auto-Config" type in CMOS for these systems.


WHERE IS THE VESA DRIVER?                                      |0| 04-25-94
A VESA driver is not needed for Cirrus video. VESA software compatibility is built into the PB430/440/440T BIOS.


INCORRECT PASSWORD SETTING                                     |3| 02-17-94
Some systems shipped with the Password set to "Enable BOOT Password Check" in the CMOS Setup, but the systems boot without prompting for a password.  To correct this, enter CMOS Setup and change the password setting to any of the available options:

The password feature will then work correctly.


PB430 "NEW" CASE REMOVAL |0| 02-07-94

There is a new case for the PB430 systems. It does not use screws to hold it in place, instead it uses two buttons (located on the bottom of the system) that are secured with locking tabs. To remove the case:

A. BOTTOM VIEW WITH LOCKING TAB IN POSITION Case Removal

 B. BOTTOM VIEW REMOVING AND INSTALLING LOCKING TAB case locking tabs 


POWER ROD REPLACEMENT                                          |3| 12-10-93

System exchanges will no longer be required to resolve power button issues on Mini-Tower systems. Replacement of the bezel with a new bezel and the power rod with a new power rod will resolve these situations.

This replacement can be at a service center or through an on-site service call.


MSD AND BIOS ENTRY                                             |3| 11-15-93

When viewing the ROM BIOS with a utility such as MSD, the BIOS may have the following entry:

        PB410 Engineering Evaluation BIOS, Ver. X

This is the correct BIOS for these systems, do NOT replace the BIOS  because of this.


READ/WRITE MULTI AND PROGRAM I/O |0| 11-22-93

When changing the Programmed I/O (PIO) from "Standard PIO" for Hard Disk 1 or 2 on Page 2 of CMOS SETUP, make sure that the installed hard drive supports Read/Write Multi (multiple reads/writes). If the hard drive does NOT support Read/Write Multi and it is used with a setting other than "Standard PIO," the data on the hard drive will become corrupted. NOTE: Read/write multi is a hard drive's ability to read/write multiple sectors at one time. It is not a feature on many hard drives. 


68MB OF RAM? |0| 11-12-93

Because the system will not recognize more than 64MB of RAM, the surface mount memory should be disabled when two 32MB SIMMs are installed. This is done by jumping J41 (On Board Memory Disable). 


HDD POWER DOWN DOES NOT WORK ON ALL DRIVES |0| 11-12-93

HDD power down only works on drives that support power saving features. 


VIDEO POWER DOWN AND MOUSE ACTIVITY                            |3| 11-12-93

Video power down turns off the video circuitry on the motherboard after a certain amount of time specified in setup.  This feature monitors the keyboard for activity but not the mouse.  This can be frustrating because if you only use the mouse, the screen will keep turning off.


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