My Q700 is on its second Astec PSU after its original bit the dust back in 2004. Although its not a IIcx, its running maxed out RAM, a 500MB HDD, and an 8*24 card without issues...I'm guessing that most of the people who have trouble with Astec PSUs most likely have like, maxed out IIcis with Rockets and the like, though I haven't really had any trouble at all with my second Astec. Unfortunately though, I do believe that Astecs are the more common PSUs you'll find in the IIci-style form factor...while GE and I think someone else made PSUs for them, from what I've seen Astecs are by far the most common - I've never even seen a pic of a GE power supply for these.