I'm running CPU-Z and i see my core speed is running at 2000 mhz with my E8400 .. shouldnt it be running at 3000 or something like that? Does everything else seem to look ok?
Plus i just upped my DDR2 Voltage to +0.4 to make it crucials 2.2 rating of 4-4-4-12 timing. Doesnt look like its running that CAS in the picture or am i just retarded?
Any help or input is greatly appreciated!
Message edited by chibanginpr on 04-22-2008 at 08:34:22 PM
You probably have speedstep and/or C1E enabled. Just run a virus scan and it should go up to 3 GHZ.
CPU-Z does not show the correct memory voltage yet.
you'll need to set the memory timings in the BIOS. the processor registers a slower speed because of the speedstep function, which lowers multiplier to save heat and energy when at idle or low loads. if you start orthos you'll see the speed back where it should be.
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They call me crazy for yelling, alone in my room, at the computer screen. They just don't understand the game.
Don't worry about disabling Speedstep. You may have to disable C1E also to get the CPU running at 100% all the time.
The purpose of these items is to minimize heat output. Check your temperatures after you disable them. Run Prime95 and record temperature at idle and under max load. It should not exceed 70° under load.
Up the memory voltage and set the memory EPP#1 or EPP#2. These are tested to be okay by the manufacturer.
If your have a core 2 duo CPU that is not running at full stock speed, the reason is Intels SpeedStep
So for example:
E4400 stock speed is 2ghz.
200x10= 2ghz <--stock
200x6= 1.2ghz <-- speed step reducing power at idle
E6600 stock speed is 2.4ghz
266x9= 2.394ghz or 2.4ghz <-- stock speed
266x6= 1.596ghz or 1.6ghz <--speed step reducing power at idle
When your PC is at idle, speed step kicks in to reduce the mulit, and vcore. This allows lower power consumption, and heat. Its basically the same as AMD's Cool-n-quiet. When you put your system on a full load, speed step should put the stock multiplier back.
To better understand how to figure out the default or stock multiplier, you will need to know what your CPU's rated FSB is. For example:
All Allendales (E4xxx) or C2D Pentiums (E2xxx) are rated at 800mhz. They are Quad Pumped so you divide by 4.
800/4=200mhz.
All the older Conroes (E6300/6400/6320/6420/6600) are rated at 1066mhz.
1066/4=266mhz.
Newer C2D (E6550/6750/ect) are rated at 1333mhz.
1333/4=333.25mhz.
So to determine your actual or default multiplier for 4 examples:
E4400 2ghz
2000/200=10 <-multi
E2140 1.6ghz
1600/200=8 <-multi
E6400 2.13ghz
2130/266=8 <-multi
E6750 2.66ghz 2660/333=7.9 or 8 <-multi (this would be rounded)
You can use a handy tool to monitor your multiplier with CPU-Z. To simulate a load, try using Orthos Stress Prime 2004. That is one easy program to load dual or quad core CPUs. In running that program, it should force your multiplier back to its normal stock setting. Its also a handy tool to help you determine if you have a stable system, thermal and CPU/Memory wise.
And here are examples of other threads created, Core 2 Duos that seem to confuse people:
Speed Step is also known by C1E and EIST (Enhanced Intel SpeedStep Technology). You can find these setting in your bios. Not all bios are the same, but usually have both C1E and EIST as separte functions.
To disable speed step completely, you will need to disable both C1E & EIST. Also, when EIST is disabled, you should be able to adjust the CPU ratio or multiplier higher or lower, which will force it to stay at that specified multiplier, and specified vcore. So on a CPU that has a multi of 10, the choices will be 6-10. You will not be able to go higher then the original stock multiplier, unless you brought the Extreme Edition Intel CPU.
I've done some tests that Zorg has offerred to me to try. Now with C1E disabled, and EIST enabled, I can go into windows and bring up CPU-Z to see what is going on. When you bring up Power Options from the control panel, and switch it to "Always On", CPU-Z should show the stock multiplier even at idle and the vcore should be at stock voltage (1.325v). And when you switch it to "Minimal Power Management" then CPU-Z will drop the Multiplier to its lowest, and the vcore should drop below stock voltage. I've tried it with my system OC'd and it still works fine.
Screen Caps on my Dad's OC (2.4ghz) E4300 (1.8ghz Stock Speed) with Speed Step Enabled:
