Wierd behaviour of Pentium D - Page 3

paulunderwood · 2007-12-08, 22:18

I don't have any PentiumD 9**. Does this processor have four CPUs, two of them virtual HT ones?

retina · 2007-12-08, 23:15

Quote:

Originally Posted by paulunderwood

I don't have any PentiumD 9**. Does this processor have four CPUs, two of them virtual HT ones?

There is no HT in the PentiumD's. Standard dual core, single thread per core.

mjbaxter · 2007-12-09, 13:31

Quote:

Originally Posted by paulunderwood

Have you tried running the memory at 333MHz i.e "x 1.66" of 200MHz ?

Yes, and I have also tried slackening the timings, and I still had errors.

db597 · 2007-12-09, 20:16

Can you try running small FFT and large FFT torture tests? If it's failing on small FFT, then it's the CPU. If it fails on large FFT, then it's the memory.

To isolate a memory problem, I would try running:
1. memory at CAS3.
2. run memory at reduced speed and CAS3
3. run memory at reduced speed, CAS3 and bump voltage up 0.1V

japelprime · 2007-12-09, 20:43

What about double the RAM bandwidth with another DDRAM if you have access to some ?

Upgrade your chipsett driver ?

just to give some idea.

2007-12-08, 22:18	#23
paulunderwood Sep 2002 Database er0rr 2²×941 Posts	general question I don't have any PentiumD 9**. Does this processor have four CPUs, two of them virtual HT ones?

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2007-12-09, 20:16	#26
db597 Jan 2003 7·29 Posts	Can you try running small FFT and large FFT torture tests? If it's failing on small FFT, then it's the CPU. If it fails on large FFT, then it's the memory. To isolate a memory problem, I would try running: 1. memory at CAS3. 2. run memory at reduced speed and CAS3 3. run memory at reduced speed, CAS3 and bump voltage up 0.1V

2007-12-09, 20:43	#27
japelprime "Erling B." Dec 2005 89 Posts	What about double the RAM bandwidth with another DDRAM if you have access to some ? Upgrade your chipsett driver ? just to give some idea.