Does this mean i'm not getting 2.13ghz?

Yozz76

Yozz76

Yozz76

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Hi people. New to all this but i'm looking at having a go at overclocking my cpu to a safe but improved level. However, do the following figures taken from CPU-Z show that my E6400 is actually running at 1.6ghz rather than 2.13 that i'm suppost to get?

Core Speed = 1600.1MHz
Multiplier = x6.0
Bus Speed = 266.7MHz
Rated FSB = 1066.7MHz

I have an Asus P5NSLI mainboard and would like to ask what you think i should aim for? My voltage is currently set at 1.360v.

Many thanks.
 
yes but it will be because you have your motherboard set to lower the multiplier when the cpu load is low... Try opening a few programs and it should go up.

Cant remember what its called to turn it off
 
To turn off Speedstep:

1) Select the "Always On" power scheme in Control Panel > Power Options.
2) Disable EIST/C1E in the BIOS.

Jon
 
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It's a feature called Speedstep (C1E / EIST in BIOS I think) which reduces the multiplier from 8x to 6x when the PC is idle. When you start using stuff that demands lots of CPU stuff it'll go back to 8x.

[EDIT]: Too slow :(
 
Thanks for the replies. I'm now thinking that given that the default logic seems to increase cpu speed only when applications demand it, which seems sensible to me, is it possible to overclock but keep speedstep enabled? Therefore the top end cpu speed will go beyond 2.13 but only when it needs to (if that makes any sense).
 
Yep, perfectly possible. Whilst in the process of overclocking however, it's recommended to turn it off.

Turn it back on again when the machine is at an overclock that you are happy with. That means running cool enough at load, and stable.

Jon
 
Yozz76 said:
Is it possible to overclock but keep speedstep enabled?
Click to expand...
Yeah, although I do see a lot of people turning it off, maybe for stability at higher overclocks and not creating any issues with the freq. and volts jumping up and down so much with a high FSB.

[EDIT]: Christ's sake :P
 
Yozz76 said:
Another noob question but why the Always On power scheme?
Click to expand...

That disables SpeedStep in Windows. You can customise the power options in the "Always On" scheme, but it is required you use this scheme to prevent EIST running.

Similarly, it is required you use the "Minimal Power Management" scheme in Windows to enable SpeedStep.

Jon
 
GeForce said:
That disables SpeedStep in Windows. You can customise the power options in the "Always On" scheme, but it is required you use this scheme to prevent EIST running.

Similarly, it is required you use the "Minimal Power Management" scheme in Windows to enable SpeedStep.

Jon
Click to expand...

My monitor won't switch itself off every 20 mins will it:eek:? Although i assume i just set that to never?
 
An update on my wimpish but careful progress so far:

I have set control panel power options to always on as instructed and have disabled speedstep in the bios.

I haved increased the fsb from the original 1066 to 1077 (in 4 increments, i'm being very careful lol :D).

However, the multiplier is still at 6 and i have searched within the bios looking to increase this to a constant 8 but still have no clue how! By my calculations, if i can set the multiplier to 8 i should then have a constant cpu speed of 2154.4MHz. I then hope to increase the fsb in still careful increments so as to reach my target of 2.5GHz:).

Does anyone know how to increase the multiplier in the bios of a P5NSLI? Also, will i need to increase the voltage which is currently at 1.360v?
 
You cant increase the multi of an Intel chip except the extreme editions. However, your multi should not be down at 6-try running some programs and see if the speed goes up. It may be that you havent succesfully turned off speedstep.
 
manic111 said:
You cant increase the multi of an Intel chip except the extreme editions. However, your multi should not be down at 6-try running some programs and see if the speed goes up. It may be that you havent succesfully turned off speedstep.
Click to expand...

Cheers fella. As it happens i had disabled speedstep but i also needed to disable something called C1E (i think it was!). Anyhow, i've now done this and the multi is at a constant 8 :). After tinkering a touch more, CPU-Z now displays as follows:

Core Speed = 2200.0MHz
Multiplier = x8
Bus Speed = 275.0MHz
Rated FSB = 1100.0MHz

I have now finally got my cpu above stock speed even if only just. Why is all this twaeking so addictive?:D

My target is 2.5GHz and then i think i'll stop, don't want to blow anything up lol.

I haven't touched any voltages whatsoever yet, is currently at 1.360v, do you think i'll need to increase this to get to 2.5GHz?

BTW, thanks for all your help guys.
 
I'm now up to 2.4Ghz. Core Temp 0.95 is displaying 56 degrees c for both cores, is this safe? I still haven't touched any voltages btw.
 
GeForce said:
Idle or load?

Idle that's a tad high, but nothing to worry about. Load that's fantastic :cool:

Jon
Click to expand...

I just got scared! I ran small FFTs in Prime 95 and both cores shot up straight away to 67 dc!

Core temp 0.95 says Tjunction 85 dc, what does this mean?
 
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