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How can the CPU clock speed be changed?

X200/X201/X220 (including equivalent tablet models) and X300/X301 series specific matters only.
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lumenite
Posts: 22
Joined: Tue Mar 19, 2013 8:44 am
Location: Fullerton, CA

How can the CPU clock speed be changed?

#1 Post by lumenite » Wed May 13, 2020 2:24 pm

Hello, I am X201 user, who is suffering its high temperature issue.
Normally, it is okay. However, when CPU is fully loaded for some long period of time, the temperature goes so high and finally the computer is down.
So, I change the CPU clock speed when I want to put heavy load on it.
There are some options for it at the power manager.
Highest (2.9GHz), Adaptive, Low (1.3Ghz), and Lowest.
Is there any way to set the speed at something like 2.4 or 2.0GHz?
Old: R40, X23, X31
Now: R51, X201, T530i

axur-delmeria
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Re: How can the CPU clock speed be changed?

#2 Post by axur-delmeria » Wed May 13, 2020 2:41 pm

Go to the Advanced settings in the current power plan.

Image

Change the Maximum processor state. Try 90%.
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lumenite
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Location: Fullerton, CA

Re: How can the CPU clock speed be changed?

#3 Post by lumenite » Wed May 13, 2020 5:54 pm

Thank you so much! It works!
Old: R40, X23, X31
Now: R51, X201, T530i

kfzhu1229
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Re: How can the CPU clock speed be changed?

#4 Post by kfzhu1229 » Wed May 13, 2020 6:14 pm

lumenite wrote:
Wed May 13, 2020 2:24 pm
Hello, I am X201 user, who is suffering its high temperature issue.
Normally, it is okay. However, when CPU is fully loaded for some long period of time, the temperature goes so high and finally the computer is down.
If the temperature is that high it most probably means your thermal paste have completely crumbled up and failed, and you need to replace that ASAP if you don't want a dead CPU (That you can't replace because it is soldered).
Refer to the Hardware Maintenance Manual (HMM) found from the HMM button on the top of this page to see how to disassemble your laptop.
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

lumenite
Posts: 22
Joined: Tue Mar 19, 2013 8:44 am
Location: Fullerton, CA

Re: How can the CPU clock speed be changed?

#5 Post by lumenite » Wed May 13, 2020 7:41 pm

kfzhu1229 wrote:
Wed May 13, 2020 6:14 pm
lumenite wrote:
Wed May 13, 2020 2:24 pm
Hello, I am X201 user, who is suffering its high temperature issue.
Normally, it is okay. However, when CPU is fully loaded for some long period of time, the temperature goes so high and finally the computer is down.
If the temperature is that high it most probably means your thermal paste have completely crumbled up and failed, and you need to replace that ASAP if you don't want a dead CPU (That you can't replace because it is soldered).
Refer to the Hardware Maintenance Manual (HMM) found from the HMM button on the top of this page to see how to disassemble your laptop.
The normal temperature is around 50 C. It is okay, isn't it?
I saw some video clips on YouTube about cleaning CPU fan and replacing thermal grease as well as disassembling the whole thing
But it does not seem easy for me. Plus, I saw some clips showing there is not a significant difference about thermal paste.
Currently I hope that I can be satisfied with the present status after having cleaned inside dust without disassembling the CPU unit.
Thank you for your response.
Old: R40, X23, X31
Now: R51, X201, T530i

kfzhu1229
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Re: How can the CPU clock speed be changed?

#6 Post by kfzhu1229 » Wed May 13, 2020 7:58 pm

lumenite wrote:
Wed May 13, 2020 7:41 pm
The normal temperature is around 50 C. It is okay, isn't it?
I saw some video clips on YouTube about cleaning CPU fan and replacing thermal grease as well as disassembling the whole thing
But it does not seem easy for me. Plus, I saw some clips showing there is not a significant difference about thermal paste.
Currently I hope that I can be satisfied with the present status after having cleaned inside dust without disassembling the CPU unit.
Thank you for your response.
The normal temps don't tell the full story.
If you are too scared to tear down the laptop completely to get to the heatsink, try putting sustained load onto the CPU and when the CPU temps shoot into the 90s, do you at least feel the heatsink exposed where you can touch is burning hot where you can't put your fingers there for more than 10 seconds (If not the air coming out also being burning hot)? If not you must change the thermal paste immediately because that means not much heat have been transferred onto the heatsink
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

lumenite
Posts: 22
Joined: Tue Mar 19, 2013 8:44 am
Location: Fullerton, CA

Re: How can the CPU clock speed be changed?

#7 Post by lumenite » Wed May 13, 2020 9:52 pm

kfzhu1229 wrote:
Wed May 13, 2020 7:58 pm
lumenite wrote:
Wed May 13, 2020 7:41 pm
The normal temperature is around 50 C. It is okay, isn't it?
I saw some video clips on YouTube about cleaning CPU fan and replacing thermal grease as well as disassembling the whole thing
But it does not seem easy for me. Plus, I saw some clips showing there is not a significant difference about thermal paste.
Currently I hope that I can be satisfied with the present status after having cleaned inside dust without disassembling the CPU unit.
Thank you for your response.
The normal temps don't tell the full story.
If you are too scared to tear down the laptop completely to get to the heatsink, try putting sustained load onto the CPU and when the CPU temps shoot into the 90s, do you at least feel the heatsink exposed where you can touch is burning hot where you can't put your fingers there for more than 10 seconds (If not the air coming out also being burning hot)? If not you must change the thermal paste immediately because that means not much heat have been transferred onto the heatsink
When the temperature goes high, I do not make the burden easy but change the CPU clock speed. For now my fully-loaded situation is simple video encoding and I do not care about the latency. At the high temperature I can feel the heat at the vent on the left side of the laptop as well as on the bottom. Is it possible for me not to feel the heat when the thermal paste does not work properly?
Old: R40, X23, X31
Now: R51, X201, T530i

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Re: How can the CPU clock speed be changed?

#8 Post by RealBlackStuff » Wed May 13, 2020 11:57 pm

Which part of "refresh thermal paste" do you not understand?
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lumenite
Posts: 22
Joined: Tue Mar 19, 2013 8:44 am
Location: Fullerton, CA

Re: How can the CPU clock speed be changed?

#9 Post by lumenite » Thu May 14, 2020 12:37 pm

RealBlackStuff wrote:
Wed May 13, 2020 11:57 pm
Which part of "refresh thermal paste" do you not understand?
All things look clear thanks to many good YouTube videos.
But what stumbles me is 1) I have to buy a thermal paste unknown to me 2) many steps to do.
Old: R40, X23, X31
Now: R51, X201, T530i

kfzhu1229
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Re: How can the CPU clock speed be changed?

#10 Post by kfzhu1229 » Thu May 14, 2020 12:46 pm

lumenite wrote:
Thu May 14, 2020 12:37 pm
But what stumbles me is 1) I have to buy a thermal paste unknown to me 2) many steps to do.
If you want the best thermal performance, thermal grizzly Kryonaut is the way to go.
However, I find that thing extremely hard to get in North America or extremely difficult for you to know whether you get the real deal or not. In that case things like Arctic MX-4 or Arctic silver 5 work as well and those are available everywhere in big name enthusiast level computer shops (Not the noob friendly ones like Best Buy), but it takes longer for those paste to cure so you won't see the best thermals until a couple of weeks after
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

lumenite
Posts: 22
Joined: Tue Mar 19, 2013 8:44 am
Location: Fullerton, CA

Re: How can the CPU clock speed be changed?

#11 Post by lumenite » Thu May 14, 2020 8:22 pm

kfzhu1229 wrote:
Thu May 14, 2020 12:46 pm
lumenite wrote:
Thu May 14, 2020 12:37 pm
But what stumbles me is 1) I have to buy a thermal paste unknown to me 2) many steps to do.
If you want the best thermal performance, thermal grizzly Kryonaut is the way to go.
However, I find that thing extremely hard to get in North America or extremely difficult for you to know whether you get the real deal or not. In that case things like Arctic MX-4 or Arctic silver 5 work as well and those are available everywhere in big name enthusiast level computer shops (Not the noob friendly ones like Best Buy), but it takes longer for those paste to cure so you won't see the best thermals until a couple of weeks after
Thank you for your recommendation. I will try MX-4 later. It sounds very interesting that it takes some time to be effective, though.
Old: R40, X23, X31
Now: R51, X201, T530i

kfzhu1229
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Re: How can the CPU clock speed be changed?

#12 Post by kfzhu1229 » Thu May 14, 2020 9:49 pm

Also before you apply the thermal paste, use alcohol or thermal paste cleaner to clean off the original thermal paste thoroughly, but also don't clean off too hard that you will crack the CPU die. It is important to not introduce any impurities into your thermal paste.
If the chipset is also cooled by the same heatsink with a thermal pad, do not touch that thermal pad unless you have a replacement thermal pad or copper shim.
Use a pea sized paste on the centre of the die. Do not spread the thermal paste manually - pressure will automatically do so bubble-free.
Always tighten or loosen the screws on the heatsink 1-2 full turns at a time and then move on to the another screw in a specific order that you repeat doing around the CPU until the screws are fully loosened or tightened. Never overtighten those screws.
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

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