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Crucial M4 and C3/C6 states

post #1 of 14
Thread Starter 
Which is a better option for these CPU states when using a Crucial M4 128GB drive with firmware 0009? Enabled or disabled?

The information given in the Sandy Stable thread is very confusing. JJ @ ASUS it should stay at its default setting (Enabled or Auto) but many have concluded that it is better disabled. Which is which?
post #2 of 14
Always disabled.
 
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Alienware 13
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Alienware Alpha
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Intel i7 4770k @4.0Ghz MSI Z87 G65 EVGA 980Ti Classified+EVGA 660SC PhysX G.Skill Trident X 16GB @2400Mhz 
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W10|Start 10 IPS 4k, Touch Alienware FX 
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post #3 of 14
Thread Starter 
Quote:
Originally Posted by Blindrage606;15557509 
Always disabled.

Reason behind would be?
post #4 of 14
I turn all my cstates off but leave speedstep on.

My 2500k will downclock to 1300ghz when not taxed.
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post #5 of 14
I have mine on auto...I am not sure what each would do, let me google it. smile.gif

Read this: http://www.hardwaresecrets.com/article/611

It explains all about each state, but not how it would interact with an SSD.
post #6 of 14
Thread Starter 
Quote:
Originally Posted by mcg75;15558368 
I turn all my cstates off but leave speedstep on.

My 2500k will downclock to 1300ghz when not taxed.

Are you sure it's not 1600MHz for the 2500K?
Quote:
Originally Posted by Sean Webster;15561224 
I have mine on auto...I am not sure what each would do, let me google it. smile.gif

Read this: http://www.hardwaresecrets.com/article/611

It explains all about each state, but not how it would interact with an SSD.

Yes, it is weird regarding the connection to SSDs but you can read all about it in the Sandy Stable section in OCN here: http://www.overclock.net/intel-cpus/968053-official-sandy-stable-club-benchmarks-stable-new-post.html
post #7 of 14
Quote:
Originally Posted by kevindd992002;15561793 
Are you sure it's not 1600MHz for the 2500K?

Yes, it is weird regarding the connection to SSDs but you can read all about it in the Sandy Stable section in OCN here: http://www.overclock.net/intel-cpus/968053-official-sandy-stable-club-benchmarks-stable-new-post.html

Oops, sorry I meant 1600mhz. 1584mhz technically. smile.gif

Cstates will effect ssd transfer. I found that years ago on a p55 board. I couldn't understand at first why my i7-860 overclocked to 3.3 on autotune was quite a bit faster than stock speed. The overlock would turn off power saving features.
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post #8 of 14
Thread Starter 
Quote:
Originally Posted by mcg75;15562246 
Oops, sorry I meant 1600mhz. 1584mhz technically. smile.gif

Cstates will effect ssd transfer. I found that years ago on a p55 board. I couldn't understand at first why my i7-860 overclocked to 3.3 on autotune was quite a bit faster than stock speed. The overlock would turn off power saving features.

Why particularly C3 and C6 and what is their difference with SpeedStep?
post #9 of 14
Quote:
Originally Posted by kevindd992002;15563257 
Why particularly C3 and C6 and what is their difference with SpeedStep?

Don't know. It's hard to find legit info on what each does exactly.

All my cstates are off. One of them causes coil whine actually, can't remember which one. My home comp only sees about 4 hours of uptime during weekdays so power usage is not a concern.
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Hard DriveHard DriveCoolingOS
Samsung 850 EVO 500gb WD Caviar Black Corsair h100i GTX Windows 8.1 64bit 
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post #10 of 14
Thread Starter 
Quote:
Originally Posted by mcg75;15563282 
Don't know. It's hard to find legit info on what each does exactly.

All my cstates are off. One of them causes coil whine actually, can't remember which one. My home comp only sees about 4 hours of uptime during weekdays so power usage is not a concern.

Coil whine from the PSU, I guess?

Lol, ok. I plan on using mine 24/7 though frown.gif
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