Toshiba BIOS Portege 4000 Free Driver Download (Official)
Video Tutorial: How to Download & Install a Driver
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Version 1.40 10-23-2001
The boot time of Windows 98 was too slow. This was resolved by changing the order of assigning FIR resources.
A change was made to support Windows XP.
A workaround was provided to bypass a problem where the sound may be interrupted or the modem may be disconnected during FIR data transfer.
A workaround was provided to bypass a problem where the system may hang if FIR and sound are activated during CPU throttling.
A workaround was provided to bypass a problem where the writing of data to a Melco made IEEE 1394 HDD takes too long.
A change was made to correct a screen noise problem with high resolution dual display mode. (LCD / CRT).
A change was made to correct a problem where too much power was consumed if the system w
Andrews (DG Staff Member) on 5/27/2004
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DriverGuide.com - Download Choice
Direct download is available only to our Premium Members. Free members are required to use our DriverGuide installer or consider these Premium options:
DriverGuide.com - Using DriverGuide's Installer
DriverGuide's installer software (Windows only) simplifies the driver installation process. It safely downloads and verifies your driver and then assists in the installation of it.
You may notice that the file size of the installer software is much smaller than the file size of your actual driver. The reason is that first the installer setup file is downloaded, and then the installer software does the work of fetching your driver from our fastest download server.
The installer setup file has been certified safe by leading-class virus and malware scanners.
Sometimes anti-virus software can report false positives. If this happens to you, we encourage you to submit the file you download to VirusTotal (a free, independent service which identifies malicious content) where you will see dozens of other anti-virus scanners report the file is perfectly safe.
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Note: Windows only. Mobile, Mac OS and Linux users can choose other download options by deselecting the installer checkbox below the download button.