M4800 Owner's Thread

With prior generations the mSATA port was SATA-2, so half as fast as SATA-3 primary bay. I think that M4800 and M6800 actually have SATA-3 for the mSATA drive slot, though...? You can check easily enough if you have a drive connected there, just open CrystalDiskInfo and see which speed it is running at.

As for the drive itself, there is no reason that a mSATA drive would be slower than a 2.5" drive. Most of the newer ones are just the same chips packaged up differently, and can easily saturate the SATA bus.

 

Hello everyone.
I have a strange problem with my dell m4800, and i dont know how to solve it.
Have FHD eDP IPS screen model: LP156WF6-SPB1, FHD eDP 30pin cable. Everything is original, I haven't changed anything.
When i set in bios switchable graphics on, everything is fine and work with no problems. When i set switchable graphics off, got a black screen. In that case i connect external monitor to VGA (that work) and can see my desktop. And everything is working normaly, in device manager i see my AMD M5100 only (thats i want).
After set switchable graphics on again - and the screen is on again. Can see intel hd 4600 and amd m5100 In device manager. And both works properly, without issues.
After that, i switch M5100 with K2100m - same problem.
And one more thing, windows says that my panel is: Digital Flat Panel (1024x768) - of course i can use FHD resolution.
Did anyone have a idea how to solve this problem, i will be very grateful.

 

Hi everyone,
I'm new on the forum, and I need some help figuring out some upgrade for my m4800 :
I bought the base model i5 4330m HD LVDS AMD Firepro m5100 for very cheap (hence why I bought it)
So I want to upgrade the screen to a FHD one, and if I stand correct I will need to change the LVDS cable too (the part number is 6G4XC I think). Can anyone provide me a part number for the LVDS FHD screen ?
Also I've read that to use 4 slots of ram I need to have a quad core i7, but will it work on the i5 motherboard ? I've put the ram under the keyboard where the plastic cap was and it's working fine in a 2*8 configuration.
Furthermore does the i5 motherboard supports i7 4810mq ? 'cause some m4800 seems to have issues with 4x10mq processors and I've spotted a very cheap 4810mq online.

Thanks in advance for the help (and sorry if my english is broken, that's because I'm french ^^)

 

There are only two variations of the motherboard: LVDS and eDP. Otherwise they are all the same and you can upgrade however you like, you just need to find the parts.
The number of RAM slots that you can use is equal to the number of CPU cores, so you will need to find a four-core CPU to use four RAM slots.

 

thanks
Are you sure that the motherboard will support any CPU ? because if you look at the 7th post, the dude clearly have issues with later Haswell CPU
http://forum.notebookreview.com/threads/dell-m4800-cpu-upgrade-to-i7-4940mx.808639/

 

It will work with any CPU that originally shipped in the M4800. If you are trying CPUs that are not on that list then it's a grab bag, you should check for stories from other users who have tried.

 

I changed my cpu in my lvds motherboard for the 4940mx and its running better than ever.




Today this morning I finished replacing my lvds LP156WFC (TL) (B1) pcba bent for another lvds ips LP156WF4-SLC1 pcba flat
http://www.panelook.com/LP156WF4-SLC1_LG Display_15.6_LCM_overview_18825.html
This is the second best lvds ips screen you can buy that is using 40pin 6bit.
The top one is an AUO B156HAN01.0 but impossible to get your hands on, and I don't feel like spending money on replacing the motherboard for a edp one.




Because the new panel is slimmer PCBA Flat, T≤3.2mm I had to order a new back panel because the mounting holes are different and antennas and hinges don't line up and the pcb bent screen mounts on a rail which don't exist on the slim panel.
Mounted on the sides vs above and under.

https://www.parts-people.com/index.php?action=item&id=19325
https://www.parts-people.com/index.php?action=item&id=18960

Hinges and antennas cannot be purchased what I can found so I had to buy a used assembly off ebay which I assembled yesterday.
I have a new part coming along with new bottom panel but they are only parts not assembly so I had to get my hands on the hinges, antennas and cables set, the tubes that cover up the hinges between the middle tube.
The only thing I don't have is the magnet because this is what makes the dell PN special as it is glued on to the left side on the slim pcb edp panels which obviusly mine did not have so nothing happens when I close the lid and the display stays on.
But I have many of those magnets from other repairs and teardowns so no worry, in worst case I can pry off the old magnet from the left rail on the pcb bent panel and glue it in place.
But I'm going to do this when the new back panel arrives, which is still in customs.
I will not put on the new bezel, I will wait for the new part to arrive as mentioned above.
I had some dust particles on the old screen and wanted to replace it but found no good pcb bent, those thick panels was all the same and the only way to get a better and even an ips panel was to go for a slim panel

Edit
Noticed just now that it is identified as an innolux, asked the seller about this, I'll be back

 

Thank you for the very detailled answer, would it be possible to mount the slimmer panel in a ghetto way into the old back panel, given the fact that it's 2mm thinner ?
Because the backpanel that you linked is like one third of what I paid for the laptop, I just think that it "ruins the cheapness" of the laptop (if that make sense, again i'm french)

 

ALERT: 2TB mSATA card is now available!
https://www.ebay.com/itm/NEW-2TB-MS...te-Drive-SSD-For-Notebook-Laptop/323993782159

Its description says it can be used in M4600, M6600, M4700. So it will work in M4800, M6800.



Dell: M4600 M4700 M6600 14ZD 15ZD V5460D

XPS 14R 1618S

Inspiron 17R SE 7720

Aliens: M14X R2 R3 M17X R2 R3

Toshiba: U800 U900 U840 U945 U930

Fujitsu: UH702 UH572 U772

Asus: EP121

 

No, it could be done but it would require extensive modifications.
Starting from the top to the bottom:
The antenna circuit boards are printed over the area where you need to screw down the lcd panel and if you remove the boards on the left and right there is no nut and alignment pin underneath. So you would either have to risk damaging the antennas or cut off those tabs because they are in the way.
The back panel itself is very deep to accommodate a thicker panel so you would need to glue on rubber feet to lift the slim lcd panel to the correct height otherwise the bezel is going to leave a deep gap when you put it back on.
On the bottom the hinges are also different, on the thick lcd panel back panel it is rectangular and covers the bottom lcd tabs so you cannot secure the lcd panel even at the bottom, and it you unscrew the hinges there is nothing underneath the part that is covered by the hinge leaving you no place to secure the lcd at all.
The slim pcb back panel has a slim rectangular hinge with a smaller L shape at each end left and right to give space for the tabs on the lcd panel to have a nut and alignment pin on the bottom to secure the lcd panel to.
In the middle is a black plastic tube which houses both the tube that closes the gap between the bottom half of the computer and the back panel and the tubes on the hinges slides in to this middle tube when assembling the hinges.
This is also higher up on the deep back panel and you will not be able to have the slim lcd panel resting flat against the rubber feet because it would sit proud of this area, yes you could probably cut off a lot of the magnesium parts that are in the way and grind down various parts but then you also need to be able to connect the lvds flex cable that on slim lcd panels are located down below the pcb board that is now placed all the way down on the tube.
And you now have to make room for the flex cable to bend 180° after connecting it to the lcd panel and tuck it in behind the lcd still leaving the rest of the flex cable at the right location for it to reach the webcam that connects in the middle above the lcd panel if you have the webcam assembly on your panel which I have.
This is no easy task and it took me two days to find a solution.
I took a surgery scissor and cut open the seem on the sock because the adhesive is very strong then a sewing needle and small tweezers to open the the sock and expose the individual cables from the opening where it enters the back panel to the Y section where it splits to the webcam, and all the way to the J bend right behind the lvds connector.
I cut it off just behind the connector and taped on a piece of automotive tape from TESA so that I would not put stress on the solder joints.
Then I bundled the cables around in a loop not mashing it into the rubber feet on the left and carefully taped it into place then lifted the lcd panel into place and screwed it down.
I wondered that it might cause interference because I removed the sock that might have acted as an isolation preventing electromagnetic interference but it was still fine, I tried to bend the cables and put a Neodymium magnet nearby but nothing happened..so I continued.
Also the lcd panel I got has the lvds plug on the left instead of the right causing a bunch of cable to be left behind the lcd panel causing this issue because you need to have it flat, that's why I had to do what I did above.
All edp screens have their plug on the left, or right if you look at the lcd perspective.
Then you need to get a magnet glued into place for the screen to turn off when you close the lid, which I have not yet done because I am still waiting for the final parcel to arrive.

So no it might be possible but its not practical by any means