Bought a panasonic cf-74 on ebay and it arrived without a wifi card by the factory.

I wouldn't suggest buying such recovery CDs from 3rd parties when you have the option to get it from Original manufacturer. Buying it from a third party will not guarantee desired results and you may lose a lot of money. You can get it through the official Panasonic website. Here's the link:
Panasonic Mobile Computing DVD Requests

Both the Sound and Chipset Drivers for
the Panasonic Toughbook CF74 can be
found at the following website:

http://pc-dl.panasonic.co.jp/itn/drivers/d_menu_en.html

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

had same problem with loading win xp proff on cf 74 toughbook mk1.
soution for me was downloading sata hdd controller from panasonic toughbook support site, loading the driver onto floppy drive, using usb floppy with driver ready to use, loading win xp profesional and on first loading win screen pressing f6 when prompted at beginning of win intallation, when on screen instructions to load sata driver appeared, i followed on screen instructions and loaded 3rd option from floppy sata drive mobile driver, left usb installed untill xp loaded and running, do not remove usb floppy untill win loaded, i really hope this helps you

The best way to "Factory" Restore your Panasonic
Toughbook CF74 is to use the original recovery
disk(s) that came with the unit when new.

If you can't find them, you can order them from
Panasonic at the following website:

http://business.panasonic.com/support-computerstablets-dvdrequests

Here is what they say:
Recovery DVDs are available by mail for select Toughbook® products. Windows® XP back up service is only available to customers who purchased Panasonic computers with XP downgrade rights. Windows XP Backup Image and Windows 7 Recovery DVDs restore a PC to its original factory image. The standard Panasonic factory image includes the Windows operating system and all drivers/applications originally installed by Panasonic.

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

You may just need to update the sound card drive go HERE for the driver.

There appears to be several genrations of CF-51. Here is a link to the support page where you can enter what generation of CF-51 that applies to your model:

http://www.panasonic.com/business/toughbook/computer-support-search-downloads.asp

click the link below to download drivers:
http://pc-dl.panasonic.co.jp/cgi-bin/itn/toughbook/dl01.cgi

thanks and do not forget to accept the solution.

You can download the XP drivers from the panasonic site. CF-51 got many flavors and be sure that your model numbers are at hand when you retrieve the factory installed drivers.

Delete all SigmaTel drivers from the registry hardware section. This would help reinstall the correct driver. The presence of these wrong registry values prevent successful installation of the factory drivers.

I have installed se7en, vista and XP successfully. The sound is really problematic since Dell and Gateway laptops use similar sound chips and offers drivers on the net... but they don't work at all. The Gateway driver seems to install perfectly from device manager report, but only the mic works & no sound.

What I do is install the factory provided drivers in XP compatible mode and then use windows update to download the latest SigmaTel drivers (se7en pre-beta). Windows got a more compatible driver but it can only install over the original since the chips cannot be recognized.

I would rather go for CF wifi card, because Panasonic doesn't states that this one has SDIO type slot. If you use CF slot you will have to find WIFI card cover - it's different one - it will allow to close top cover with the card inside.

There was also two models:

• CF-P1P1CDZ6J - Bluetooth / wireless LAN built-in
• CF-P1P1CZZ6J - Built-in wireless LAN-model

Hi,
Unless you can use external power to the usb 2.0 pcmcia card, a CF-27 probly won't handle the load.
Their power adapters are only 15V and the unit itself is a P2 433 at best. It's just pulling too much power.
Sorry
Good luck