| A few early-production beige Power Macintosh beige G3 Desktop, Minitower and Server computers were manufactured with a Royal Technology brand Voltage Regulator Module (VRM) that is incompatible with processor upgrades.
This issue affects Beige G3 systems containing the Royal brand VRM. Figure 1 shows the location of this part in the slot next to the system battery on your computer's motherboard, and its specific appearance. Only the Royal VRM has this issue; Raytheon, Switch Power, and Fairchild VRMs do not.
Because most VRMs look similiar, you must remove and visually inspect it. If the words Royal Technology appear on your VRM, do not install the Encore card; if you have already installed it, remove it. It is critical that this VRM be replaced before the Encore/ZIF is installed (or operated again if you already installed it), as it could cause damage to itself or the Sonnet card. If your Macintosh no longer functions, even with the Encore card removed and the original CPU replaced, it is likely the Royal VRM is damaged and should be replaced. Sonnet has tested and recommends replacement VRMs manufactured by Creative Connections, Inc. You may purchase a replacement VRM from Creative Connections by visiting their website, or by calling them at 1-770-476-7322.
If the VRM in your computer was manufactured by Raytheon, Switch Power, or Fairchild, there is no need for further action. Reinstall the VRM and proceed with the installation of the Encore card as described in the installation manual. |