Opteron 185 problem

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NikolaosL

NikolaosL

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Jan 1, 2015
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Hi,
I upgade from opty 150 to 185..
I have problem with cpu temps… The HWMonitor shows a different 8-10 degrees Celsius on load AND Task Manager shows that the cores’ graphs are not equivalent..
i.e. one core is running 50% and the second 57%
I have flash the bios, but nothing happened.

Is my new cpu faulty?
I have to make a format?
 
Solution
MU_Engineer


The core graphs show utilization, which certainly can be different from core to core. You can have a single-threaded program that uses only of the two cores, so one runs at 100% and the other at only a few percent. The temperature of an Opteron 185 will also be higher than that of an Opteron 150 at load as the Socket 939 150 is an 85 watt processor while the 185 is a 110 watt processor. 8-10 C sounds...
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NikolaosL

NikolaosL

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Jan 1, 2015
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18,510
Hi GhislainG,
my mobo is MSI K8N NEO4/SLI (MS-7100)
Yes I test prime95 for 30 min and the temps was 11 degrees different!

Also, with my previous cpu, I have reached 250 bus speed
but with this I can not reach 220.. with all other setting to auto, i.e. ram.
You know why the 'loads' are not equivalent to task manager all the time? It must be a setting?

One other question..
I updated bios (v3.9 with dos)
The last bios version contained a
feature which called ‘Disabled PCI Prefetch’
I heard that the above feature causes problem.. is that true?
 
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MU_Engineer

MU_Engineer

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Feb 18, 2006
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The core graphs show utilization, which certainly can be different from core to core. You can have a single-threaded program that uses only of the two cores, so one runs at 100% and the other at only a few percent. The temperature of an Opteron 185 will also be higher than that of an Opteron 150 at load as the Socket 939 150 is an 85 watt processor while the 185 is a 110 watt processor. 8-10 C sounds about right.

If you see two different "CPU" temp sensors, they are not actually per-core sensors. AMD doesn't have temp sensors in each individual core; they only have one temp sensor per processor die. The second CPU temp is probably a socket temperature coming off a motherboard temp sensor. There usually is a difference in temp between the on-die sensor and the socket temperature, and 8-10 C isn't unusual.



The Opteron 185 uses the exact same die as the Toledo Athlon 64 X2 4400+/4800+ and FX-60. (The Opteron 185 is literally an FX-60 with a locked multiplier and a different CPUID model ID string.) If the board supports the Athlon 64 X2s, it will support the Socket 939 Dual-Core Opterons. Putting Socket 939 Opterons in desktop Socket 939 boards was super commonplace as the less-expensive Opterons like 148s and 165s were less expensive than the 1 MB L2 cache Athlon 64s and overclocked at least as well. There weren't any Socket 939 boards that I remember anybody saying that would take the Athlon 64s that wouldn't take an otherwise similar Opteron.The only issues people ran into were some early 939 boards didn't support dual-core processors (including the Athlon 64 X2s) or somebody would get a Socket 940 Opteron and it wouldn't fit in the Socket 939 motherboard.
 
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