Bloom the bad fitting was my fault.
Not design flaw at all, i was in such a hurry to fit it as AH was calling
Lol you know the heat sinks have a step on them that corresponds with the socket edge, well basically in my hurry i did not get the step in the heatsink centred correctly over the sockets edge and of course was very lucky not to fry the cpu.
I have win98 set up with with 2 different hardware configs so it stops at a menu and asks which i wanna use, first boot attempt it froze at the menu which got me suspicous which is why i checked the temps in Bios next boot attempt.
Fans tried with the default SK6 ystech first temps were same as my Thermoengine with delta but quieter.
Fitted Delta to SK6 load temps dropped 3-4 degrees C.
One good thing that came from it my 1 Gig Axia Y overclocks higher and stabler now after being nearly fried
Totally stable at 1.4 Gig now not bothered to push it higher yet.
One other thing to bear in mind with Tbirds higher than 1.33 gig a lot of motherboards are freezing a couple of seconds after finishing loading into windows.
This is caused by windows ACPI power management, specifically the HLT instructions to cool down the cpu, as soon as it starts to cool down windows locks.
Cure is to install windows with ACPI disabled in the bios or with an install command line option "setup /p i".
Of course you can also disable ACPI in the bios of a current windows install but be prepared to have to reinstall all your hardware drivers upon windows startup.
Disabling ACPI will make your comp run at full load or close temps all the time mine currently 50c reported.
But for a huge overclock from 1 gig to 1.4 i can live with it
Actually keep meaning to try a software cooler like softice or similar to see if they cause the freezes as well or just windows ACPI implementation.