M4800 Owner's Thread

[hef]

On 1/6/2023 at 1:02 AM, Kitje said:

I got it to stop rattling in the past, as it did appear that the rotor was off balance and hitting the metal part of the fan assembly. I'll make note of sealed bearing leaks... Maybe look into it further to figure out the true cause.

 

Edit: I may buy a new set anyways if possible... Is it possible? I've checked AliExpress and have seen some on there but not sure which to go for. I know I need a CPU fan, but from whom?

interesting info, I have m4800 and m4700, both with the same issue, the fan is not loud, but it is producing rattling, making vibration like a 7200rpm harddisk, i plan to check it out

[MELOCODI]

Ordered a Delta CPU fan for my M4800 recently, great stuff.

Lithuanian shop on eBay that has those fans in stock - https://www.ebay.ie/itm/285018113824

 

Spoiler

 

[K4sum1]

Is there any reason aside from size to go with the GaN charger?

  

On 10/27/2022 at 7:15 AM, Kitje said:

This should be a tip, too. If the eBay listing of an M4800 has the service tag on, look up on Dell support. If the spec mentions anything eDP like this, then it should confirm it's eDP. Even a low resolution 768p eDP can be switched to 1080p:

Where did you find this page? All I can find is a Dell support page that asks for an account, which I'm not making. My service tag is BJFP462 or 25119829082

[K4sum1]

Also is there any fan that is known for being quiet or are they all around the same noise?

 

Also why does the Intel CPU run hotter than the GPU with a bigger heatsink and fan while being lower wattage?

[Kitje]

2 minutes ago, K4sum1 said:

Is there any reason aside from size to go with the GaN charger?

  

Where did you find this page? All I can find is a Dell support page that asks for an account, which I'm not making. My service tag is BJFP462 or 25119829082

You'll find it here: https://www.dell.com/support/home/en-us/product-support/servicetag/0-YjJNVC9NWGR1L3oxSUwxUk5JMlRldz090/overview

 

 

Upon looking up your tag it's saying EDP1.3.

 

If you're still unsure you can check what panel you have installed using HWINFO, then looking up the panel model.

[K4sum1]

That's pretty cool. HWINFO just says that it's DisplayPort in the program which is pretty handy. I guess I'll wait for the A2000 8GB to get cheap and get that. In the meantime is it worth upgrading the CPU? None of the eDRAM models seem to have a socket which sucks, and all there really is that is significantly better isn't that big of a upgrade or 57w. I tried undervolting my 4810MQ with XTU but it couldn't do even -50mV so it's not worth bothering, and going up to the max speeds in XTU gets quite toasty. Also does using me_cleaner break XTU? It appears to install some sort of management engine driver but I can't find anything saying me_cleaner breaks XTU.

 

Also I might upgrade to a 120hz panel, any good cheap ones? I appear to have a 6 bit panel but it seems to still be a good IPS panel and I haven't noticed any banding yet in what I've tested.

[Aaron44126]

57 minutes ago, K4sum1 said:

Also is there any fan that is known for being quiet or are they all around the same noise?

 

Also why does the Intel CPU run hotter than the GPU with a bigger heatsink and fan while being lower wattage?

 

For information on the types of fans available, see this thread and posts by @unnoticed.  Delta fan is generally preferred.

 

It is normal for the CPU to run hotter than the GPU with the same wattage.  The CPU is harder to keep cool because it concentrates power in tiny "hot spots" where the CPU cores are (a relatively small portion of the die as a whole), while the GPU distributes power use more-or-less across the entire die.  (GPU dies tend to be bigger than CPU dies anyway.)

[K4sum1]

That only has the CFM, I didn't find any noise numbers when I was skimming it. Could've missed something though. I have an AVC CPU fan, and I want to say I remember the GPU fan being Delta but it doesn't have the Delta shape, and I don't want to check right now. I think I just want quieter fans more than anything.

[Aaron44126]

4 minutes ago, K4sum1 said:

That only has the CFM, I didn't find any noise numbers when I was skimming it.

 

There is at least this in post #6.  Higher CFM will be beneficial as well if you care about noise.  The fan can get the same work done at lower speed.

 

Now I changed my cpu fan from the AVC #2 to the Delta fan #3, not only is the fan quieter but also a lot more powerful.
The AVC fan ramped its speed to max making a horrible noise while the Delta fan roars off but still has plenty more to give if you manually control the fan speed and if you put your hand in front of the outlet grill you can already feel a hard air flow while the AVC barely tickled your face on full speed.

[K4sum1]

I guess I'll add a Delta CPU fan to my list. Anything about the GPU fan?

[Aaron44126]

The fans are slightly different sizes and have different enclosures, but the blade design is the same if you have fans from the same manufacturer.  If you find a Delta CPU fan beneficial then you'd probably want a Delta GPU fan as well.

 

The system runs the fans at roughly the same speed anyway.  (I.e., a load on the CPU only will cause both the CPU and GPU fans to ramp up.)

[K4sum1]

So I went and looked at the GPU fan and it says Delta. I guess it's a different design as from the CPU fan as it doesn't have the cone or whatever.

[MELOCODI]

3 hours ago, K4sum1 said:

So I went and looked at the GPU fan and it says Delta. I guess it's a different design as from the CPU fan as it doesn't have the cone or whatever.

That's good, even though my CPU fan was originally from AVC, my GPU fan is from Delta. Delta CPU fan (at least for me, idk) is not quieter, but the noise itself is much more tolerable, it doesn't have a high pitch, and you can really hear air pushing through a heatsink, so it won't disturb you during the night.

[Kitje]

7 hours ago, K4sum1 said:

Also I might upgrade to a 120hz panel, any good cheap ones? I appear to have a 6 bit panel but it seems to still be a good IPS panel and I haven't noticed any banding yet in what I've tested.

Mine is the N156HHE-GA1, but difficult to find now as the seller Screenarama on Amazon doesn't have it anymore. I think mine might have a fault or 2 now as I noticed it over time. There's discoloration on the top corners and a pressure mark. I kind of don't like the colour reproduction, somehow artificial than colour accurate despite reviews of laptops saying the panel is very good for photo and video work.

 

Best place to search is Panelook which was how I discovered my 120hz, then looked at sellers around Amazon. There are filters to search, because some panels don't use 30pin and opt for 40pin for the extra bandwidth. Filtering it out will give you better results of choice.

 

Word of caution, though. It might just be my panel but since it'll be a higher rate it'll mean more work for the GPU and iGPU. Lower battery life and higher temperatures. Intel Control panel will not let you enter a custom resolution to lower the rate, it'll give you an error saying exceeded maximum bandwidth (which is a farce) despite it being lowered in theory.

[K4sum1]

Battery life isn't that big of a concern for me, I'll just use my T430 if I need it.

I wanted to check if my panel was 30 or 40 pin, so I went back into HWINFO and looked up the panel it gave me (B156HW01 V1), and found a LVDS panel from 2009. This was confusing until I saw it also listed a B156HAN with a Dell part number of 4VWJT. This appears to be a B156HAN01.1 and 30 pin eDP. I kinda want to take apart my laptop to know for sure but I don't want to cause unnecessary stress on the plastics.

Also if a display is 30 pin eDP, will it just work or will I need to check other factors as well? (Aside from size and screw hole placement) I haven't checked screw holes yet, but would like a NV156FHM-NY1 (BOE085C) or NV156FHM-N4B (BOE0726) work?

 

Also a picture of the HWINFO page because why not

[MELOCODI]

11 hours ago, Kitje said:

Word of caution, though. It might just be my panel but since it'll be a higher rate it'll mean more work for the GPU and iGPU. Lower battery life and higher temperatures. Intel Control panel will not let you enter a custom resolution to lower the rate, it'll give you an error saying exceeded maximum bandwidth (which is a farce) despite it being lowered in theory.

Try using CRU

[K4sum1]

Oh yeah I forgot to mention but you should just be able to adjust the refresh rate without needing a custom resolution. Not sure where it is in 10 but here's what it looks like on my desktop.

[Kitje]

40 minutes ago, MELOCODI said:

Try using CRU

I have, and unfortunately it didn't play nice with the LCD, kept cutting out and it looked incredibly bad.

 

32 minutes ago, K4sum1 said:

Oh yeah I forgot to mention but you should just be able to adjust the refresh rate without needing a custom resolution. Not sure where it is in 10 but here's what it looks like on my desktop.

Only listed 120Hz and nothing else there. I'll probably investigate what's wrong with the panel EDID.

[K4sum1]

Does all connected screens shut off when you close the lid for anyone else? I mean like disconnect from the system entirely. This happens for me, meaning all the windows I have on the second display get moved to the first when I open it back up, and I can't use just a second screen with the main one closed if I wanted to.

[KMikhail]

On 5/27/2023 at 11:19 AM, K4sum1 said:

Does all connected screens shut off when you close the lid for anyone else? I mean like disconnect from the system entirely. This happens for me, meaning all the windows I have on the second display get moved to the first when I open it back up, and I can't use just a second screen with the main one closed if I wanted to.

Ever since I have 2X docks, external screens (home: Samsung S95B, work: Dell something) and discovered that the dock buttons work perfectly like they are built into the laptop, I don't even bother to open the lid.

[KMikhail]

On 5/23/2023 at 11:45 AM, K4sum1 said:

I guess I'll wait for the A2000 8GB to get cheap and get that.

 

As wonderful as it sounds, we might never see those cards in an appropriate combination of compatibility acceptable cost. Used M4800 could be bought for a couple of hundred bucks nowadays, which makes even performance-wise reasonable purchases unreasonable money-wise.

 

P.S. I'm in love (so to speak) with the M4800+dock. Such a clean and easy setup. The downside is a lower version of DisplayPort and USB (lack of TB as well), which is a limitation of the M4800 itself (along with a few others). Too bad they dropped the form-factor and an overall approach in favor of the business vs engineer/scientist.

[K4sum1]

43 minutes ago, KMikhail said:

Ever since I have 2X docks, external screens (home: Samsung S95B, work: Dell something) and discovered that the dock buttons work perfectly like they are built into the laptop, I don't even bother to open the lid.

I did figure out it only is the internal display that disconnects, but Windows moves all the windows to the main display when I open it back up. I guess it makes sense, but I don't remember it being an issue with my other laptops.

 

20 minutes ago, KMikhail said:

As wonderful as it sounds, we might never see those cards in an appropriate combination of compatibility acceptable cost. Used M4800 could be bought for a couple of hundred bucks nowadays, which makes even performance-wise reasonable purchases unreasonable money-wise.

idk T1000 is cheap and T2000 can be found nowadays, and we're out of the mining ages. Maybe someone stocked up on a bunch of them.

[MELOCODI]

2 minutes ago, K4sum1 said:

T2000 can be found nowadays

Really? I have only seen one mention of T2000 being bought, and it was on this forum.

[K4sum1]

Not sure if Aliexpress search sucks or they sold out, but I can't seem to find anything relevant.

[MELOCODI]

26 minutes ago, KMikhail said:

Used M4800 could be bought for a couple of hundred bucks nowadays, which makes even performance-wise reasonable purchases unreasonable money-wise..

Idk, not a case for me, it is still better then the modern stuff you can buy, at least where I live right now. Even with all upgrades it is better than anything in it's price range + it is easy and nice to service it. Even in my situation I think that it was a good decision.