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CPU upgrade Amilo L7320 : big problem with EIST

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CPU upgrade Amilo L7320 : big problem with EIST

Postby Akwa » Sun Mar 30, 2008 1:21 pm

Hi,

I just upgraded my L7320 (Celeron M390 @ 1.6GHz FSB@400MHz) with a Pentium M "Dothan" 740 @ 1.73GHz (FSB@533 MHz).

It works. But there is a big problem : the CPU run at 800 MHz and want not speed up (even with 100% CPU load).

In fact, the BIOS don't permit to activate the Intel Extended Speed Step, and then de CPU run at the lower speed.

I succeed to activate "manually" the EIST by editing the MSR CPU register, but it's not a good solution (and need to be at each restart).

Have someboy an idea to solve this problem ?

Thanks
Akwa
 
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Re: CPU upgrade Amilo L7320 : big problem with EIST

Postby aspettl » Sun Mar 30, 2008 6:43 pm

Did you already try the "hardware reset" (see FAQ for description)?

Akwa wrote:I succeed to activate "manually" the EIST by editing the MSR CPU register, but it's not a good solution (and need to be at each restart).

With RM Clock or which tool did you use?

Regards
Aaron
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Re: CPU upgrade Amilo L7320 : big problem with EIST

Postby Akwa » Sun Mar 30, 2008 7:56 pm

Hi Aaron,

Thanks for your very fast answer.

1. Yes, I did the Hard-Reboot, and Bios reset, without any result.

2. yes, RM clock works, but its not compatible with "Note Book Hardware Control".
Initally, I used "CrystalCPUID" : menu "Function" > "MSR Editor", then "MSR Number" = 0x1A0 and EAX = 0x00011480 (in place of 0x00001480, thanks to Intel documentation).
It's really not an easy way to activate and use the Intel Speed Step.

3. But worst : it appears now, that at full speed (1733 MHz), computer freeze after a couple of minutes. I'm forced

to limit the CPU coef (in "Note Book Hardware Control") at 11x.

Perhaps the 533MHz FSB is not supported by Amilo L7320 ? Or by the RAM ?

In a previous topic, everybody succeed to replace their Celeron by Pentium M in their Amilo L7300, without problem.
I don't understand why I have so trooble with my Pentium M...

Regards
Akwa.
Akwa
 
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Joined: Sun Mar 30, 2008 1:11 pm


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