Compatible to dell desktop pent II III
- Thread starter sitharg
- Start date
- Nov 19, 2010
- 20,886
- 5,113
- 106,640
What are your exact specs? You say Pentium II/Pentium III, but the only Precision 390s I see with Pentiums are from the Dual Core age ten years ago, not the late 90s.
The max. CPU I'm seeing is the Q6600.
http://www.userbenchmark.com/System/Dell-Precision-WorkStation-390/1890
Motherboard 0DN075 support 4 core CPUs, there was an earlier one that didn't. So you should look for one of those. Flash the latest Dell BIOS.
https://www.dell.com/community/Desktops-General/Dell-Precision-390-Which-CPUs-work-for-an-upgrade/m-p/3811040
There's talk of Core 2 Quad Extremes there but I can't find a running example anywhere.
My best guess is it has a 95W CPU limit. This would mean a Q6600 SLACR G0 stepping, or an X6800 unlocked 2.93GHz 2 core extreme CPU 80W.
If you want to try for an overclock with the Core2 Extreme check out the links in my sig. The X6800 is a B3 stepping so 3.2 to 3.45GHz would be a good result.
As to whether it's worth spending $80 for a MB and CPU on this is up to you. Just about any LGA775 45nm 4 core Optiplex will run circles around it. And many people consider those to be obsolete. If it was a Dimension 9200/XPS 410 it would be a different story, those supported 130W Quad Extremes and can get up and go pretty good.
http://www.userbenchmark.com/System/Dell-Precision-WorkStation-390/1890
Motherboard 0DN075 support 4 core CPUs, there was an earlier one that didn't. So you should look for one of those. Flash the latest Dell BIOS.
https://www.dell.com/community/Desktops-General/Dell-Precision-390-Which-CPUs-work-for-an-upgrade/m-p/3811040
There's talk of Core 2 Quad Extremes there but I can't find a running example anywhere.
My best guess is it has a 95W CPU limit. This would mean a Q6600 SLACR G0 stepping, or an X6800 unlocked 2.93GHz 2 core extreme CPU 80W.
If you want to try for an overclock with the Core2 Extreme check out the links in my sig. The X6800 is a B3 stepping so 3.2 to 3.45GHz would be a good result.
As to whether it's worth spending $80 for a MB and CPU on this is up to you. Just about any LGA775 45nm 4 core Optiplex will run circles around it. And many people consider those to be obsolete. If it was a Dimension 9200/XPS 410 it would be a different story, those supported 130W Quad Extremes and can get up and go pretty good.
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