CPU Multiplier - Overclock.net

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post #1 of 10 Old 02-08-2013, 09:58 AM - Thread Starter
 
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Hi I picked up an AMD duel core 270 3.4Gh processor a few weeks back and have been playing around with overclocking it. I got it up to 4Gh with an Arctic Freezer pro13 air cooler was running stable no issues with overheating BSOD freezing etc.

Strange thing is I checked the CPU speed yesterday to discover that the processor multiplier which is normally X17 is now jumping between X4 X10 and X17 meaning one minute I'm getting 3.6Gh because I dropped it down to 216 with multiplier X17 to 864.06Mhz the question is has the processor gone faulty or is it normal for the multiplier to do this????

I don't think so but I'm new and me knows nothing:o

Cheers Bill
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post #2 of 10 Old 02-08-2013, 10:05 AM
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This throttling occurs to save power. If you load all cores to 100% and it still does it, then there may be cause for concern.

As it is at idle, it only comes out of power saving when it needs the speed.

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The difference here is there are no odds as there is no luck involved. The %30 failure rate you observe has nothing to do with luck and everything to do with aptitude for the task.
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post #3 of 10 Old 02-08-2013, 10:10 AM
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if cool 'n' quiet is enabled your cpu multiplier will drop when not busy. most overclockers disable this setting to set a constant frequency.
http://www.overclock.net/t/1002985/athlon-ii-overclocking-guide-beginner-friendly/270
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post #4 of 10 Old 02-08-2013, 10:29 AM - Thread Starter
 
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Ahhhhhhhhhhhhhhh I see ok will run prime95 and check bios to see if its running in cool and quiet mode will get back to you guys thanks.

Bill
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post #5 of 10 Old 02-08-2013, 11:43 AM - Thread Starter
 
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Ok cool and quiet was enabled now disabled and on running prime95 multiplier speed sits at X17 increased cpu frequency to 225 @ X17 holding steady at 3825.00Mhz

system temp
Cpu 33C Fan speed 1386rpm
MB 23C Chassis Fan speed 1110rpm

All seems comfortable at 3825.00Mhz

Question is as it idles at a lower speed anyway is it worth leaving it at 3825 or even 4165.00Mhz which I know it runs at with a CPU temp of around 39 - 40C

What do you guys recon???

Bill
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post #6 of 10 Old 02-08-2013, 11:45 AM
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There's nothing wrong with leaving it enabled if it's not causing problems. my i7 runs at 4GHz when under load, and IIRC 1.8GHz when idle. I can't tell the difference when I'm not doing anything...

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post #7 of 10 Old 02-08-2013, 12:55 PM - Thread Starter
 
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Cheers with full load still stable and running at 34C i'm happy with that.

Regards and thanks for the help

Bill
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post #8 of 10 Old 02-08-2013, 01:45 PM
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That's a nice oc on that dualcore.

Quote:
Originally Posted by CorsairGeorge 
Steel is great unless you want to look through it.
Quote:
Originally Posted by fnarfbargle on delidding failure rates 
The difference here is there are no odds as there is no luck involved. The %30 failure rate you observe has nothing to do with luck and everything to do with aptitude for the task.
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post #9 of 10 Old 02-08-2013, 03:00 PM - Thread Starter
 
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Thanks I had it at 4236.00 first time I OCd it but the temp got higher than I wanted so droped it I currently got it up to 3995.9Mhz at the moment but i'm not sure about changing the CPU voltage which is currently at 1.425V and cpu temp at 37C

Cheers Bill
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post #10 of 10 Old 02-08-2013, 08:44 PM
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You can also run K10stat (if it is compatible with your CPU) to change the multi like CoolnQuiet does, except its much more flexible. I have my CPU set so it runs at 700Mhz when idling, then jumps up to 1.2Ghz, 2.4Ghz or 3.4Ghz depending on the CPU load (%age). No point running at full speed when you don't need it.

Do a search for k10stat for more info, or I can walk you through it if you want.
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