LCD Upgrade P370EM

Is it possible to upgrade the LCD from an P370EM to 4K, 3D, 120Hz or something else? I have a Mobo with 2 Display connectors.

 

Then you could get the 50 pin eDP 120hz panel and cable. That would also make 10xx series upgrades possible.

 

Ok, Do you know what exactly and where to buy?

 

The 50 pin eDP cable as I said, then there was one 120hz 50 pin eDP screen IIRC. Both will have been discussed on here and I'm no good at memorizing long part numbers.

 

Ok, I will search here. And what do you think about a 4K Panel?

 

4k may be possible... with a lot of work, pinning your own cable and tapping a 3.3V source (P370EM 120Hz panel via eDP uses 5V)... It would still probably be limited to 30hz @ 4K due to DP spec bandwidth as is the HDMI out port

I did the 120hz panel upgrade to get display out of the 1070/s and its fine, except no backlight brightness control via hotkey/shortcuts. There is limited control via the Nvidia control panel colour settings.

 

Your main issue with 4k is the cable. You'll need to build one. The W230SS has the correct physical connectors, but you will need to rewire it by pulling wires from the motherboard connector and arranging them to match the EM series. The 6-43-W23S1-010-K is a 40 pin 4 channel eDP cable you can rewire. It has a .5mm pitch connector. Beware that the cable can also be too short.

I have soldered cables together for more cable length. It took many tries with many ruined cables, and it has stability issues with 900 series cards, with only 1000 series working correctly.

The laptop has the circuitry for both 5V and 3.3V. The 50 pin 3d cable has a wire grounded that selects 5V, while if the wire is cut 3.3V is sent to the screen instead.

EDIT: As I think about it I don't know if I remember cables and lcd connector pin pitch correctly. As I think about it, Sharp screens are .4mm, while Samsung is .5mm. I think the cable I linked is .5mm. Most new screens I think are .4mm. .4mm requires you to solder cables together, which is very very tedious.

Also there is a thread about P370EM and P370SM eDP panel upgrades somewhere. The SM series has issues with the 3.3V voltage supply being too weak, but this is not an issue on EM systems.

 

Do you not have brightness control at all? LVDS uses EC controlled brightness while eDP uses MXM GPU control. I have no idea why Clevo split the two. For eDP you need to wire the LCD brightness to the EX_VGA_BKLPWM_S signal, or you can try changing PANEL_SEL_R to tell the system you have an LVDS panel, which should result in brightness control being through the EC on the BRIGHTNESS_R signal. PANEL_SEL_R also selects between 5V and 3.3V though, so you'd have to figure out how to still get 5V while requesting LVDS style control. You can get the pin locations for these signals from the service manual.

 

Basically as above, if you are ok working on fine pitch cables you have some extra options.

Control will be split to allow for two connectors.

 

@bennyg what did you buy to get the 120Hz screen working?
And I have the premamod V2 on P370EM if it is important.

 

The 50 pin eDP cable and the 120hz panel.