MachI > MachII?

[ThommY]

I swapped my mach1 for a mach2. I run my 2600+ mobile @ 13*220 = 2866mhz and 1.9vcore.
These settings ran absolutely fine on my mach1. These speeds were primestable for days..
Now I installed the mach2 and I cant get 2866mhz primestable!
The evap is showing -43 idle and my mach1 gets it -33 idle and -28 stressed. I reinstalled the cpu kit like 100 times by now and I can't get it running stable.
My bios temp is showing me 9°c idle. I checked the evap for a cpu imprint and it's there.. What is going on? I'm I missing something here?
Thx for the help!

[ThommY]

Anyone? Got it stable on 2755mhz and 1.85vcore.
Bios temp still shows 9°c idle.. Evap @ -40.

[Reflex1]

maybe this is why the other guy wanted to swap ... hehe

[ThommY]

It's a new unit and does -60°c with no load.