Clevo P75 don't boot - no display

Hi everyone.

Weeks ago my clevo P771DM had shut down without any warning (2 years old laptop, thermal paste changed 3 month prior).
After that, it refuses to start:
-1 led blinking for a second then no power at all, even power supply led stopped.
-removing the 970m mxm card solve the power failure issue, but no display as this clevo don't allow internal gpu use.
-Got a new mxm card (same specs, fully compatible).

The laptop start without any issue, but i'm stuck on a black screen; no beep from the system.
Fans works properly.
Can access the bios, and can't try on an external monitor at the moment.

2x checked, laptop screen cable well plug in the mainboard (before someone ask ); same goes for memory (tested ok on another laptop).

I would need advise from this amazing community:
-should i consider that the mobo aswell was damage during the initial shut down
-is there anyone experiencing the same issue (and managed to solve it).

Thanks in advance everyone !
And an happy St Patrick's Day.

Regards from Dublin.

Camille

 

What card did you get exactly?

 

Hi Meaker,

My mistake the specific Clevo is P771DM-G.
970m Mxm 6gb :
chipset N16E-GT-A1
(TFB860.01W)


Thanks in advance

 

And the card that you got?

 

Hi Meaker,

The specs of the new card are post above.
Just edited and correct the clevo model.

970m Mxm 6gb :
chipset N16E-GT-A1
(TFB860.01W)

Regards

 

More specifically: Who's the manufacturer of the card you bought recently? Is it a Clevo card, Dell, MSI, etc.?

Happy St. Patrick's Day.

 

Hi,

I don't know the manufacturer.
The two cards are visually identicals, and same chipset.

Would 2 mxm cards with the same chipset, but from 2 manufacturers be differents? Therefore incompatible with my clevo p75?

Regards

 

Potentially, can you provide images of both and any stickers?

 

Hi,

Here's a picture of the original 970m.

 

Here's the new one.
Inserted in mxm slot
Thermal paste cleaned

 

My 770zm bit the dust late December. Just sent it off last week. I had taken a steam and damn you Microsoft forced windows 10 update. Laptop won't even boot to bios screen. I am fairly certain it is Mobo failure. Did all the usual troubleshooting. Hadn't run it really hard for awhile . Unless perhaps my network card killed it. I use steam link and Ethernet exclusively now with a 65" display. Will probably find out next week what the damage is. I also borked my keyboard while troublooting. Broke the middle screw and a couple keys testing ram slots.

 

Update regarding main topic.

Got an external monitor today.
It works. Laptop boot, everything is fine. Good news mobo not dead and mxm card OK.

Just recheck the connectivity from laptop screen to mainboard, all seems fine. Connector is plugged.

One more time, I will place my best hope in you guys, any idea regarding this?

Best regards from Ireland

 

What does the HDCP status say in the nvidia control panel?

 

This is why you don't get cheap garbage china cards.

Try another vBos and if you want to keep the card as long as possibe, don't overclock it.

 

Hi,
Hdcp statut only show the external monitor.
Same in windows hardware settings.
The card seems more than fine, running good settings in 2560x1440.
Never mention my intention to overclock it....(and never will do it on an mxm card...)

Regardd

 

You can try flashing a Clevo vbios otherwise the card may simply not be wired for eDP/LVDS (whichever is relevant in this case).

 

maybe a driver reinstall in windows?

 

Have you pointed a flashlight/cellphone camera flashlight to your display?

If it works with external display, maybe your backlight died..

 

Windows should still detect it however.