• We should now be fully online following an overnight outage. Apologies for any inconvenience, we do not expect there to be any further issues.

i believe this has been asked before

1stezekiel

Member
Feb 25, 2008
151
0
71
ok, built my first intel machine.... i got an e8400, by luck i got the E0 revision..... anywho... please tell me again why the multiplier changes by itself to 6 when i dont use anything taxing on the cpu ? thanx.
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
21,073
3,576
126
Speedstep EIST and C1E.

lower power draw, and less heat.
 

HOOfan 1

Platinum Member
Sep 2, 2007
2,337
15
81
yeah it is normal, I would leave it alone...unless you find your motherboard doesn't allow overclocking with it on.
 

taltamir

Lifer
Mar 21, 2004
13,576
6
76
it is a feature that saves you money by reducing the power consumption when the CPU is not in use... when it gets heavier use it automatically switches to full power and goes back to 9... it is available in ALL intel and AMD cpus made in the last few years...

it does, however, have a tiny efficiency loss... I think i once read an article that pegged it at 2% lower performance compared to disabling it. (you can disable it in the bios)...

You can always check for yourself by disabling it in the bios, running some benchmarks, and then enabling it and running them again, and check for difference. (run the test a few times though to see what the normal fluctuation is first).
 

bryanW1995

Lifer
May 22, 2007
11,144
32
91
I always disable both of them b/c I run DC 24/7. However, some heavy overclockers have mentioned that they can get a higher long term oc by using them.