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i7 2600K standard clock speed?!

Soldato
Joined
2 Dec 2009
Posts
4,018
Location
Midlands
Just noticed the clock speed for Core#4 here:

hwmon1.jpg


Shouldn't the speed be the same across all cores?! (not OC'd).
 
It's obviously not reading correctly because the "Bus Speed" on Sandybridge is 100MHz and that doesn't change.

And if you've got a Sandybridge processor which can do 9GHz you should sell it back to Intel for millions so they can reverse engineer whatever allows it to run at that speed.
 
Go with these:
http://www.cpuid.com/news/36-cpuid_reviewer_kit_for_intel_sandy_bridge.html

The hardware monitor it provides is going to have similar aesthetics to what you're using now, but with the right values. I like this version because, like HWM Pro versions, it shows the CPU power wattage.

Just be careful running the supplied TMonitor app in conjunction with CPU-Z itself, I've had it report mouth-watering (but blatantly incorrect) values for cores, like >500,000MHz, until I ran them separately again.
 
In open hardware Monitor mine shows up as...
2047 across all 4 cores.

And Bus speed is 341mhz.



looking on CPU-Z (The sandybridge one) It shows up as
Bus speed 100.3mhz
Multiplyer x38, giving me a core speed of 3812mhz.

Which is weird, because i don't even recall turning Turbo mode on... So it should only be at 3.4ghz? if i'm correct ? with a 34multiplyer.
 
Turbo was on by default for me, different mobo though**, but if you stress a single core then instead of going from ~1600MHz to ~3400MHz then it could hit up as high as ~3800MHz temporarily.

If using all 4 cores the turbo would level itself out across the cores to allow a peak of ~3500MHz over them instead (again, by default). They can stay at that level for as long as they feel they can sustain it, or until other cores get loaded in which case it will step down.

So either it's not reading the state from your mobo properly (always a possibility it seems as lots of new or updated (rev b3, different bios, etc.) bits of kit are coming out) and the software can take a little time to keep up.

Does it always report the same thing even when the system is completely idle? As well when running wprime 1024m test (set it to 8 threads first, not the default 4).

And how does the numbers in CPU-Z compare with those in the HWMonitor it comes with (not Open HW Monitor)?


Edit: ** probably anyway.. I thought you were the OP replying so I guess I have no idea what mobo you're actually using :D gigabyte p67a-ud7-b3 in my case
 
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It's obviously not reading correctly because the "Bus Speed" on Sandybridge is 100MHz and that doesn't change.

And if you've got a Sandybridge processor which can do 9GHz you should sell it back to Intel for millions so they can reverse engineer whatever allows it to run at that speed.

genuine lol :D
 
Some screenies to accompany what I wrote.

Here's my defaulted system settings when loading up 1 core:
peak-turbo-defaults.png

Same but when loading up 4 cores:
spread-turbo-defaults.png

The settings I normally run with now, where I have turbo enabled, but the values are level no matter if I'm running 1-4 cores. When idling it still settles down to <=1600MHz and appropriately multipliers:
spread-turbo-levelledOC.png
 
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