clevo p870tm/tm1-g Official Clevo P870TM-G Thread

[ViktorV]

3 minutes ago, runix18 said:

Fun fact, if you port the P775 nvdgpudxe to P870 bios the Pci express lanes remain only 8 (not 16 like on the p775) but the second sli port stops working. So that means that the PcieE lanes on the P870 are hard wired only 8 lanes per slot.

I agree, on the p870, only 8 lines physically come to each mxm slot, a feature of the motherboard. But based on tests, this has almost no effect on overall performance.

[runix18]

Just now, ViktorV said:

I agree, on the p870, only 8 lines physically come to each mxm slot, a feature of the motherboard. But based on tests, this has almost no effect on overall performance.

Not even with a 3080?

[ViktorV]

1 minute ago, runix18 said:

Not even with a 3080?

yes, even with rtx3080

[runix18]

1 minute ago, ViktorV said:

yes, even with rtx3080

Ok, that is very reassuring. At one point I was thinking of going for a 3080 (obviously when the prices are right) but was afraid of bandwidth bottlenecking.

[ViktorV]

3 minutes ago, runix18 said:

Ok, that is very reassuring. At one point I was thinking of going for a 3080 (obviously when the prices are right) but was afraid of bandwidth bottlenecking.

Here are the test results of Clevo p870tmg / i9-9900k / rtx3080 and x170kmg / i9-11900k / rtx3080, as can be seen from the tests, the bandwidth of the mxm bus does not affect performance in any way, you also need to take into account that these are systems of different generations))), about this I I have repeatedly said, but they laughed at me, but I will say again that there is no point, at least at the moment, is striving to buy the latest systems on new components, the old people can still !!!

[ViktorV]

4 minutes ago, ViktorV said:

Here are the test results of Clevo p870tmg / i9-9900k / rtx3080 and x170kmg / i9-11900k / rtx3080, as can be seen from the tests, the bandwidth of the mxm bus does not affect performance in any way, you also need to take into account that these are systems of different generations))), about this I I have repeatedly said, but they laughed at me, but I will say again that there is no point, at least at the moment, is striving to buy the latest systems on new components, the old people can still !!!

The same was tested in other benchmarks, but the result is the same, p870tm is not inferior to x170kmg, and in some places even surpasses x170kmg.

[runix18]

4 minutes ago, ViktorV said:

The same was tested in other benchmarks, but the result is the same, p870tm is not inferior to x170kmg, and in some places even surpasses x170kmg.

That's why I am still rocking my P870DM platform. I know that I am somewhat limited by the 5v fans but I hope it will cope fine with a 8 core mutant or an 9700k.

Also I am more than confident that it will manage to cool down a 150w 3080 easily.

[ViktorV]

6 minutes ago, runix18 said:

That's why I am still rocking my P870DM platform. I know that I am somewhat limited by the 5v fans but I hope it will cope fine with a 8 core mutant or an 9700k.

Also I am more than confident that it will manage to cool down a 150w 3080 easily.

p870dmg easily coped with cooling 200w Clevo gtx980 (Desktop), and 150 watts rtx3080 will digest without straining.

[ViktorV]

20 minutes ago, runix18 said:

I know that I am somewhat limited by the 5v

DAC module project Clevo DC12V/5V fans. In the process of making a prototype, we will test, I think this should solve the problem

[Developer79]

1 hour ago, runix18 said:

Fun fact, if you port the P775 nvdgpudxe to P870 bios the Pci express lanes remain only 8 (not 16 like on the p775) but the second sli port stops working. So that means that the PcieE lanes on the P870 are hard wired only 8 lanes per slot. (wich makes sense due to limited pci express lanes of the CPU).

I have already tried this! Simply porting does not work so well...There are other things to manipulate! 2nd thing: The p870xx has basically only 8 lanes available. The bios does not change this! The bios is set to automatic detection. It will always find 16 lanes on the P775xx and on all P870xx always 8 lanes per MXM port....

[Developer79]

1 hour ago, ViktorV said:

Here are the test results of Clevo p870tmg / i9-9900k / rtx3080 and x170kmg / i9-11900k / rtx3080, as can be seen from the tests, the bandwidth of the mxm bus does not affect performance in any way, you also need to take into account that these are systems of different generations))), about this I I have repeatedly said, but they laughed at me, but I will say again that there is no point, at least at the moment, is striving to buy the latest systems on new components, the old people can still !!!

 

I can confirm ViktorV results! I also knew it for a long time! 8 lanes have no loss as a result! Even compared to the latest generations...Also the temperatures can keep up with new systems without problems..My system: P870TM / RTX 3080 / 9900KS...See photo:

 

[srs2236]

My scores on Fire Strike:

[Developer79]

3 minutes ago, srs2236 said:

My scores on Fire Strike:

Also very good! But with a P775TM! Still nice...I put no value on optimal exploitation, but only Reliable good running:-)

[srs2236]

1 minute ago, Developer79 said:

Also very good! But with a P775TM! Still nice...I put no value on optimal exploitation, but only Reliable good running:-)

 

Well, with the GPU there is no problems what so ever.

 

The CPU on the other hand... Well, it averages 100W and tends to thermal throttle a bit depending on the game, but still the clocks are 4.8GHz average if I had to guess.

 

For example during Fire Strike it had PL2 active and had 143W drawn for Core. It survived the Fire Strike without dropping clocks, but in normal scenario in game it would never be able to sustain 143W on the heatsink that I have.

[Developer79]

4 minutes ago, srs2236 said:

The CPU on the other hand... Well, it averages 100W and tends to thermal throttle a bit depending on the game, but still the clocks are 4.8GHz average if I had to guess.

You can optimize something in the Bios! In the P870TM I keep quite often 5.2 Ghz1

 

6 minutes ago, srs2236 said:

For example during Fire Strike it had PL2 active and had 143W drawn for Core. It survived the Fire Strike without dropping clocks, but in normal scenario in game it would never be able to sustain 143W on the heatsink that I have.

The loss reading of 143 W tremendous! The heatsink is certainly not designed for this. Perhaps you can still accommodate a few heatpipes and increase the contact pressure a bit...

[srs2236]

My 9900KS is capable of all core 5.1GHz at -50mV.

 

The thing is though, to maintain that 5.1GHz a lot of power is needed and at only -50mV the CPU goes in to thermal throttling before the PC can really take advantage of the 5.1GHz...

 

So I don't know what else to optimize in my PC other than just improve the cooling somehow which will definately translate to better performance.

 

At the moment I think I am going to look into maybe having a bit bigger undervolt on my CPU but I'm not sure if that is possible. (Currently stable with -115mV)

[runix18]

3 hours ago, ViktorV said:

DAC module project Clevo DC12V/5V fans. In the process of making a prototype, we will test, I think this should solve the problem

To be honest i was thinking also at a step up power converter, but those have a terrible efficiency. I can also see the connectivity from 3 pin to 4 pin (meaning somewhat to be able to control the fan controller.). It would be nice if that works.

[cylix]

2 hours ago, srs2236 said:

My 9900KS is capable of all core 5.1GHz at -50mV.

 

The thing is though, to maintain that 5.1GHz a lot of power is needed and at only -50mV the CPU goes in to thermal throttling before the PC can really take advantage of the 5.1GHz...

 

So I don't know what else to optimize in my PC other than just improve the cooling somehow which will definately translate to better performance.

 

At the moment I think I am going to look into maybe having a bit bigger undervolt on my CPU but I'm not sure if that is possible. (Currently stable with -115mV)

Try to lap the CPU and/or get the Bartx IHS for that 9900k if you dont have it yet. It really makes a difference.

[ViktorV]

While studying the issue of compatible displays for our laptops, Clevo came across such a display b173han05.4 and b173han05.5, in general, an ordinary ips FHD display with good hertz, but it is noteworthy that they support AMD FreeSync technology, which in turn can give us an alternative our G-sync which does not always work correctly on our laptops after modifications. As far as I know, AMD FreeSync is not tied to the combination of components used and I think there is a good chance that it will work on our laptops. I want to buy this matrix for tests, what do you think?

[runix18]

3 hours ago, ViktorV said:

While studying the issue of compatible displays for our laptops, Clevo came across such a display b173han05.4 and b173han05.5, in general, an ordinary ips FHD display with good hertz, but it is noteworthy that they support AMD FreeSync technology, which in turn can give us an alternative our G-sync which does not always work correctly on our laptops after modifications. As far as I know, AMD FreeSync is not tied to the combination of components used and I think there is a good chance that it will work on our laptops. I want to buy this matrix for tests, what do you think?

That is a very nice AHVA panel with good color replication. I say go for it if you have the cash.

[ViktorV]

41 minutes ago, runix18 said:

That is a very nice AHVA panel with good color replication. I say go for it if you have the cash.

Well, I already ordered b173han05.4, I chose it because it has support for both G-sync and FreeSync, that is, it is more versatile. There are no problems with money, and they are not very expensive from my supplier. We'll test when it arrives.

[srs2236]

Just now, ViktorV said:

Well, I already ordered b173han05.4, I chose it because it has support for both G-sync and FreeSync, that is, it is more versatile. There are no problems with money, and they are not very expensive from my supplier. We'll test when it arrives.

Can't wait for test results!

[Developer79]

I have today my own modified bios(P870TM) extended with RTX support!

Many thanks to ViktorV and Dsanke!

I tried it with RTX 3070 and RTX 3080, it works fine.....

 

[ViktorV]

Geek version of MXM for m.2 quad-port SSD expansion card, specially customized for chiphell enthusiasts))))😁🤯

[runix18]

4 minutes ago, ViktorV said:

Geek version of MXM for m.2 quad-port SSD expansion card, specially customized for chiphell enthusiasts))))😁🤯

Where to buy pls?