Yes, it should. It is probably not plugged in tightly enough on the DC-DC board. Happened to me once in installing a number of the upgrades. On Saturday, November 30, 2002, at 12:33 AM, Loopie HK wrote: > A friend has recently upgraded his cube with the 1Ghz Powerlogix > upgrade kit. But the fan doesn't come on? Is this the norm? I would > suspect the fan should come on as soon as the computer is powered on.