Is it a processor related issue ?
If you have a stability issue with a system, it is highly unlikely to have its
cause in the cpu itself.
A system can have a multitude of problems when running under heavy load
for a longer period of time. Most of these can be detected in advance with
relatively simple test tools.
If I want to test a systems stability I usually use these three:
- memtest86 (available on almost every linux-boot-cd/dvd.
You can do extensive tests of the system ram for many hours.
A stable system should not show a single error even after
many hours of operation.
- GIMPS - Prime95 (*) for heavy load on cpu ... thereby the thermal stability
of the system design is tested. Note, that this is not only a test for cpu, but also
cpu-cooling. (*) Can be downloaded from the "Great Internet Mersenne Prime Search"
website. The program has a test-and-torture-mode.
- h2testw (*) to run extensive tests on disk(s) and thereby the bus that connects
the disks to the system. (*) Can be downloaded from www.heise.de (who publishes the
wellknown german computer magazin "CT".
I reckon that if you had stability problems with your old system, your system
certainly had a flaw somewhere ... but unlikely in the cpu-core itself.
Just my 2cts ... Rainer