'Fraid I don't know about the Taisol, at all. The PEP-66 is made expressly for cooling Slocketed CII's and P3E's. I've used one on a P3E for quite a while. For some reason, my P3's run hotter than many folk's. But having the cA2 stepping accounts for a lot of it!
I replaced my PEP-66 with a GlobalWin FOP, with a 42.5 cfm 80mm Sunon case fan strapped to it. This doesn't cool quite as well as the PEP-66. Seven months of listening to the Delta 38 on the PEP-66 was all I could take!
But wait...developments on the cooling front now make the Delta from Hell-a obsolete. Thank God!! Several etailers now offer 60mm to 80mm fan adapters for the PEP-66. These fit PEP-66's to a T. As soon as I can afford one, I'll remove the FOP, and reinstall the PEP-66. Beauty! Better cooling and much quieter to boot! Plus one Dimm slot reclaimed. Yaay!