Clevo P750ZM (maybe bios problem)M.2 ssd and Wifi/lan not working

Hi everyone I recently bought this Clevo laptop on eBay.

Everything was working fine, until the first month of usage.

It's very strange because the laptop randomly stops recognizing the m.2 drive, and in the first times, that I had this problem I just changed the proprieties on the bios and its working just fine again.

When I can't get m.2 to be recognized in the BIOS, I have the computer open, do a general cleaning inside and try to go to bios again to see if it has been recognized, and then change the value to factory or optimized f3 and f4 and the pc starts working again.

This time was the most critical my m.2 it's not working at all.
I cant manage to make it appear in my BIOS I thought it was like broken... So I grabbed the m.2 drive put it in my friends desktop and to my surprise, it's working! we open my windows and all files programs everything is working with no lost partitions

And my Wi-Fi card is not working since the m.2 stopped working...
The card name is the killer network 1525 and i really don't know what to do more....

Both Wi-Fi and cable conections are not working. I'm using an old HDD with the windows and a Wi-Fi pen drive to use the laptop and surf the web.

my specs are:
i7-4790k
32 gb ram ddr3
980 m - 8gb
m.2 Samsung 500gb

my bios version is : 1.03.07 , 07/01/2015

Any help is appreciated BTW i already tried fn + f11 update drivers download manually and nothing

 

Wow, it's really hard to read what you want to say. Could you add some punctuation, form sentences and stuff? I mean, you want help, so it would really help to understand what you want to say. ;-)

Regarding the topic: Did you try the second m.2 slot?

 

Sounds like a return to seller to me. The symptoms sound like a hardware failure of the motherboard.

 

hello thanks for answering my question.

I'll try to improve the text above, but I was surprised that you mentioned a secondary m.2 input, because I never found it on the laptop, I only see 1 m.2 input and 2 sata inputs in the area where these components are located!

Soo here is the second m.2 I really have no clue ???

 

hello, unfortunately i bought it at an auction on ebay, so it's kinda impossible to return the laptop because i already have it for about 7 months..

So my only solution is fixing

 

7 months would definitely be too long for a return but, a new MOBO would resolve the issue. However, I couldn't find one on the cheap very quickly. One on aliexpress for ~$500 would preclude that option as a new laptop would be a better deal.

You know the drive is good from using it in a different system so that rules out that piece.
m.2 wifi would probably have the same result as the drive.

Which leads to the m.2 ports being bad. It's possible the solder on one of the connections went bad or a capacitor somewhere else or a resistor.

Looking for arc marks nearby might give an indication of where the problem is.

Take some photos and post them and maybe someone will be able to diagnose the issue.

 

Ok i did some research and I have to thanks @Kommando

I found a clevo manual and now I know for my surprise that this laptop have two m.2 ports im going to give a try !!!

Will start posting pictures !

 

im going to open the laptop
will post furter updates!!!

 

I will also search for arc marks !!

 

ok i just opened the laptop, the m.2 is not compatible with that input it makes a difference of about 0.5 / 1 mm

my m.2 drive is

MZ-HPV5120 Samsung SM951 Series 512GB MLC PCI Express 3.0 x4 M.2 2280 Internal Solid State Drive (SSD)

 

Other thing i Found!!!



did this guy i bought changed motherboards ??

 

I just took a picture and didn't feel any strange smells (burned), everything seemed to be right, the motherboard is without marks of any burnt component

 

To do a visual inspection requires taking off the cooler, pop the memory, etc. and view both sides of the board like they would do in a proper shop trying to repair the issue. Checking the capacitors for a doming effect and the transistors for scorch marks.

Sure it's a PITA to do and takes a little bit of time to pull everything but if you don't want to spend more $ on a new board...

 

well I think I will have no other choice but to open the laptop completely.

And being honest I don't know how to change a capacitor or something that is burnt but I'm going know if the motherboard is good or not!

But I have been thinking alot that the problem may also be with Bios because supposedly this Bios doesn’t support nvme and has a lot of comments about a user called @Prema who has a bios to be able to use nvme disks

 

P750ZM and P751ZM are the same Laptop. There is only a small asthetic difference iirc.

I wonder why your laptop seemed to detect the NVMe drive before if you don't already have installed Prema BIOS.

 

Prema or not... it was working before and now 2 hardware items fail to work.

It's a physical problem with the board unless you did something else in the past 7 months regarding a bios upgrade or some other hardware upgrade.

 

Ok guys i just arrived home

Im going to update the BIOS to a new version to see if thats the issue and finally use the m.2 instead of the hdd

 

Im going to prepare the pen drive lets do this

 

Ok the time as come

Im waiting 30 secs then I Will start the laptop again

 

​

 

Sad day boys!

The laptop is still not finding the m.2 drive and its really late ... I'm gonna get to sleep

I Will be here tomorow trying again

 

Ok..... photo shows a blank screen and two orange lights indicating power/charging in the off state.

 

I know when I flash pc's they tend to mess with settings for M2.... just occurred to me with your BIOS photo. If the bios has Intel RST toggle it from off to on or on to off and see if that makes a difference otherwise it's electrically not showing up due to a fault on the board like stated originally.

Possibly try defaulting the settings and/or short out the BIOS to factory defaults removing the battery within the case and holding the power button for 30 seconds to completely discharge the system.

 

I team good morning to you all

 

Im going to do that right now!

Im gonna search also in the BIOS if the WiFi is turned off

 

Still nothing the m.2 is not present on BIOS

 

I dont know if I need to Change some values on BIOS or its doomed the laptop...

Any help is always well received

Im gonna post some BIOS pictures

 

You guys can take a look

 

The only thing that sticks out is the UEFI setting Windows 8+, this sometimes enables secure boot which can cause issues.

Check under the "off board SATA" option and see if anything is hiding in there related to the M2 sockets. It's weird though to see so many SATA ports listed in a laptop. In the past I had a Dell M6600 that could squeeze 3-4 drives into the chassis between 2 x 2.5" / mSATA / and some other format.

I think you mentioned a regular HDD worked it's just the M2 ports not working?
They were working prior to starting the thread?
Any changes to the OS / BIOS prior to the thread?
Firmware updates?

 

Well the m.2 slots can be SATA of course so they extend that list. I had the old p570wm which had 3x 2.5 inch slots which was amusing.

 

I keep forgetting we used to have M2 SATA as a thing. It seems like so long ago that those drives / devices existed.

I have a Flash drive that makes things difficult when trying to create a boot disk depending on the OS I'm working from because it doesn't show up as a USB drive because it's basically an SSD w/ a USB-A plug on it. I didn't expect to run into that until I tried 4-5 programs in Linux to make a bootable drive as it just wouldn't show / detect from those programs until I found WoeUSB and finally got it written to the drive. It's a speedy little drive though at 285MB/s W / 360MB/s R.

Still the photos show up to 5 SATA connections which seems to be a bit much for a laptop.

 

They still exist today lol.

 

Hi, read what you Said and I went straight to the BIOS and when i Open Offboard Sata Controller I get this


And the m.2 was working perfectly sometimes it stoped recognizing the BIOS but i just unplug all hold powerbutton and its was back runing but this time i just sttoped for good

The BIOS i updated now to prema v2 but still no m.2 showing up

I think Im going to buy a ssd

 

Seems like it could be an EC chip issue, check both ITE chips below the mxm card please. Inspect each pin carefully.

@Khenglish what do you think could be the issue?