Thinkpads Forum

Has anybody changed the heatpads of CPU and GPU to heat conductiong paste?
Are the temps much better?
Is the X100e easy to disassemble?

For the first questions... No.

for the following

howto wrote:Is the X100e easy to disassemble?

Check

http://www.lenovoservicetraining.com

Got to Notebooks -> Thinkpad -> X series -> X100e
There you can select videos or documentation. Videos are very useful to understand how to disassembly the X100e.

larango,
If the answer to the first question is no how can you answer the second question with a no? Seems to me that "unknown" would have been a better answer, or have I missed something here?
As to the third question, disassembly/assembly appears easy enough; however, I would like to know if the original heatsink uses a thermal pad?

howto wrote: Are the temps much better?

What do you mean ?

If you have fresh air and hot cpu, you can consider the option.

But normally is not the x100's case, the air is normally warm, if not hot, and this is because the heat transfer is working.

I guess no one wants to answer your question so I will rephrase it since I also would like to know.

"Has anyone tried removing the heatsink and fan assembly and applying a good thermal paste to see if cpu temps are reduced appreciably?"

steveg47 wrote:I guess no one wants to answer your question so I will rephrase it since I also would like to know.

So I rephrase my answer.

Is a pointless question, period.

The tdp of the processor is 15 or 18W, if you want to do something to have fresher temps just use rmclock to lower the voltage.

steveg47 wrote:larango,
If the answer to the first question is no how can you answer the second question with a no? Seems to me that "unknown" would have been a better answer, or have I missed something here?

Sorry I wasn't clear enough. I wanted to say No from my side. I haven't changed the heatpads of CPU and GPU to heat conducting paste. So, an "Unknown" answer for the first 2 questions, would have been better. You are right.

On my x100e the CPU had a paste and the GPU a heatpad.
I changed both to Arctic ceramique paste.

Temps are now ~55°C in Idle with fan off.

howto wrote:On my x100e the CPU had a paste and the GPU a heatpad.
I changed both to Arctic ceramique paste.

Temps are now ~55°C in Idle with fan off.

What were the temps before and what temp program are you using?
What power settings were being used when the temps were ~55°C.
Does the heatsink reach the the gpu with the pad removed?

temperature before: around 60°C.
Power setting...
I reconfigured the High performance setting. But RMClock is clocking the CPU, not Windows.
Yes, I disassembled the heatsink and it reaches the GPU. There are 3 screws, pressing the heatsink and heatpipe to the motherboard.
2 at the CPU, 1 at the end of the heatpipe, after the GPU.

A 60°C to 55°C is significant. My system currently idles at around 62°C on Windows 7 64bit and I could use a -5°C reduction. Unfortunately, I cannot get rmclock to run. I think because of the unsigned driver restriction. I also use tpfancontrol which helps a great deal in controlling overtemp issues.
Thanks for the very useful info.

steveg47 wrote: Unfortunately, I cannot get rmclock to run. I think because of the unsigned driver restriction.

Exactly, you need a signed driver to run rmclock on a 64 bit Windows.

You can find it easily with a bit of googling

I have already solved the unsigned driver issue.

Just to chime in; I replaced the thermal pad with MX-3 in the X100e; not much of a difference. Can't really tell for the GPU because nothing I have reads GPU temps on it at the moment (running 10.12).

The primary heat source on the underside is the Southbridge (near the speakers) that gets really warm but has no heatsink nor any direct form of cooling.

Update to the temps:

With normal working (PDF reading, Downloading with JDownloader (Java), Surfing with Opera)
the temperature is around 63°C with fan off.

If not used (complete Idle) the temp. drops to 55 - 58 °C, depending on environment temp. (fan off)

With extensive working (Matlab, Mathematica running) temp goes up to 70°C, where the fan starts, cools down to 60° and back to 70. This is periodic.

@howto

Perhaps you already checked this, but...
is your CPU at 0%-10% during complete idle? (mine is mostly at around 0-5%) If your CPU is frequently going over 10% during complete idle, there may be a background program thats using cpu power and causing extra heat.

I had this issue and was hovering in the 55C+ idle temp. I disabled the background programs (Windows caching, Norton) and the temps dropped to around 40-50C idle.

That is true.
I have ManicTime installed. All few seconds it has 15% CPU load then drops down to 2%......
But it is the best Time management software...

At long last before my warrantee expires I finally sent in my X100E with L335 dual core cpu to Easyserv for an overheating problem. I figured I had nothing to lose. Wrong! Got it back today and surprise! surprise! the cpu had changed to a single core MV40. Since many others have reported this same error by Easyserv I suspect this is deliberate move and not a mistake since the MV40 does run cooler.

If Easyserv wants to downgrade the cpu to solve an overheating problem they have an obligation to notify the customer of their intention and not try to sneak it by, which is what I suspect they have been doing for quite some time now. I called the "mistake" in and they are sending another box overnight. (sigh).

Unfortunately, this has been a waste of time for me and a waste of unnecessary overnight shipping costs for Lenovo. A lose lose all around. I wonder how many of this "mistake" have gone undetected by non techies.

On the plus side the turn around time was very quick. Hope they get it right the second time.