• Sign in to follow this  
    Followers 0

    NVIDIA GTX 980M Hynix to Samsung Memory Swap


    Khenglish

    So I didn't like that the memory on my 980m only clocked to 6.4 GHz after raising the voltage to 1.48V from 1.35V, and wanted my memory to run even faster. I knew someone with a spare 970, so we made a deal where I buy the card, and if it still worked after I switched all the memory chips, he'd buy it back (for reduced amount if it could no longer do 7GHz, but at least 6GHz). Long story short, he bought the card back and I got faster memory.

     

    MSI 970 4GB Lightning original memory: Samsung K4G41325FC-HC28 (7GHz rating, 8GHz max overclock)
    MSI 980m 4GB original memory: Hynix H5GQ4H24MFR-T2C (6 GHz rating, 6.4GHz max overclock)

     

    Both cards are GM204 chips. The 980m has one less CUDA core block enabled than the 970, but it has the full 256-bit memory interface and L2 cache with no 3.5GB issues, while the 970 is 224-bit with 1/8th of the L2 cache disabled. Both cards are 4GB with 8 memory chips.

     

    I highly suspected this memory swap would work because video cards read literally nothing from a memory chip. There is no asking for what the chip is or even the capacity. They write data to it and hope they can read it back. Memory manufacturer information read by programs like GPU-z isn't even read from the memory. It's set by an on-board resistor. I also had changed multiple memory chips in the past, so was fairly confident I could physically do the job.

     

    I started with just one chip switched from both cards. This meant both cards were running a mix of memory from different manufacturers and of different speed ratings, but same internal DRAM array configuration. Both cards worked. Here is a picture of the 980m with one chip switched over:

     

    JXVyaWy.jpg

     

    Now how did the cards react? The 980m behaved no differently. No change in max overclock. The 970 though... I expected it to be slower... but...

     

    970 with 1 Hynix chip, 7 Samsung (originally 8 Samsung)
    7GHz = Artifacts like a crashed NES even at desktop
    6GHz = Artifacts like a crashed NES even at desktop
    5GHz = Artifacts like a crashed NES even at desktop
    2GHz = Fully Stable, 2d and 3d

     

    I didn't try 3GHz or 4GHz, but yeah, HUGE clock decrease. I shrugged though and kept switching all the memory figuring that as long as it worked at any speed, I could figure out the issue later. With switching more chips through 7/8 switched there was no change in max memory clocks.

     

    What was really fun was when I had 7/8 chips done. My GDDR5 stencil got stuck and ripped 3 pads off the final Samsung chip. Needless to say there was a very long swearing spree. Looking up the datasheet I found that 2 pads were GND, and a 3rd was some active low reset. Hoping that the reset was unused, I checked the 970's side of the pad and found it was hardwired to GND. This meant the signal was unused. I also got a solder ball on a sliver of one of the GND pads that was left, so I was effectively only missing a single GND connection.

     

    I put the mangled 8th chip in the 980m and it worked. Net gain after all of this... 25 MHz max overclock. Something was obviously missing. I figured I would switch the memory manufacturer resistor, hoping that would do something. I saw that Clyde found this resistor on a k5000m, and switching it to the Hynix value from Samsung had no effect for him. He found that for Hynix on the k5000m the value was 35k Ohms, and for Samsung 45k Ohms. I searched the ENTIRE card and never found a single 35k Ohm resistor. Meanwhile the 970 also worked with all 8 chips swapped, at a paltry 2.1 GHz.

     

    Then I got lucky. Someone with a Clevo 980m killed his card when trying to change resistor values to raise his memory voltage. His card had Samsung memory. He sent his card to me to fix, and after doing so I spent hours comparing every single resistor on our boards looking for a variation. Outside of VRM resistors there was just a single difference:

     

    AIU6Ph3.jpg

     

    On his card (his is shown here) the boxed resistor was 20k Ohms. On mine it was 15k Ohms. I scraped my resistor with a straight edge razor (I could not find a single unused 20k resistor on any of my dead boards) raising it to 19.2k, hoping it was close enough.

     

    And it was! Prior to this I also raised the memory voltage a little more from 1.48V to 1.53V. My max stable clocks prior to the ID resistor change were 6552 MHz. They are now 6930 MHz. 378 Mhz improvement.

     

    Here's a 3dm11 run at 7.5 GHz (not stable, but still ran)
    http://www.3dmark.com/3dm11/10673982

     

    Now what about the poor 2GHz 970? I found its memory ID resistor too:

    6q6iGuQ.jpg

     

    Memory improved from 2.1 GHz to 6.264 GHz. Surprisingly the memory was slower than it was on the 980m. I expected the 970's vBIOS to have looser timings built in to run the memory faster. As for why the memory was over 100MHz slower than the 980m, 980m actually has better memory cooling than the 970. With the core at 61C I read the 970's backside memory at 86C with an IR thermometer. The Meanwhile the 980m has active cooling on all memory chips, so they will be cooler than the core. In addition, the 980m's memory traces are slightly shorter, which may also help.

     

    The 980m at 6.93 GHz is still slower than the 8 GHz that the 970 was capable of with the same memory. I'm not sure why this is. Maybe memory timings are still an issue. Maybe since MSI never released a Hynix version of the 970 meant leftover timings for an older card like a 680 were run, instead of looser timings that should have been used (I know in system BIOS tons of old, unused code get pushed on generation after generation). I don't know, just guessing. Talking to someone who knows how this stuff works would be great. I still want 8 GHz.

     

    Some more pics. Here's one with the 970 about to get its 3rd and 4th Hynix chips:
    Xuu0dxa.jpg

     

    Here's my 980m with all memory switched to Samsung. Sorry for the blurriness:
    7B8bHQm.jpg

     

    So in summary:

     

    1. It is possible to mix Samsung and Hynix memory, or switch entirely from one manufacturer to another, with some limitations.

     

    2. There is a resistor on the pcb that is responsible for telling the GPU what memory manufacturer is connected to it. This affects memory timings, and maybe termination. It has a large impact on memory speed, especially for Hynix memory. This resistor value can be changed to another manufacturer. It is not guaranteed that the vBIOS will contain the other manufacturer's timings. If it does they may not be 100% correct for your replacement memory.

     

    3. If you take a card meant for Hynix memory, you can mix Samsung memory of the same size if it is a faster memory. If the memory is the same speed, the penalty for running Samsung with Hynix timings may hurt memory clocks.

     

    4. If you take a card meant for Samsung memory, you cannot mix any Hynix memory without MAJOR clock speed reductions without also changing the memory manufacturer resistor. It is not guaranteed that the vBIOS will contain the other manufacturer's timings, or if it does 100% proper timings for your specific memory.

     

    5. For Kepler cards the Samsung resistor value is 45k, and for Hynix 35k. For Maxwell cards the Samsung resistor value is 20k, and Hynix 15k.

     

    Next up is changing the hardware ID to be a 980 notebook. Clyde  also found HWID to have an impact on the number of CUDA core blocks enabled. In about a month I can get a hold of a 970m that someone is willing to let me measure the resistor values on. It has the same pcb as the 980m. Does Nvidia still laser cut the GPU core package? We will find out.

     

     

    Full thread can be found here: https://www.techinferno.com/index.php?/forums/topic/9021-hardware-mod-gtx980m-hynix-to-samsung-memory-swap/#comment-134361

     


    10 people like this
    Sign in to follow this  
    Followers 0


    User Feedback


    There are no comments to display.



    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!


    Register a new account

    Sign in

    Already have an account? Sign in here.


    Sign In Now

  • Similar Content

    • By J95
      Game Ready
        •Provides the optimal gaming experience for Tekken 7 and Star Trek Bridge Crew.

      Added or updated the following 3D Vision profiles:
        •Tekken 7 - Fair

      Changes and Fixed Issues in Version 382.33:
        •[TITAN X][3D Vision][Windows 10 Creator’s Update]: The Windows Store does notopen when 3D Vision is enabled. [1906805]
        •[GeForce GTX 1080Ti][Prey 2]: Stuttering occurs during gameplay. [1902201]
        •[GeForce GTX 1070][Windows 10 Creator’s Update]: In multi-display mode, extended monitors cannot be be put into sleep mode. [1916554]
        •[GeForce GTX 1060]: Blue-screen crash occurs pointing to driver (Nvlddmkm.sys) after the system reboots from sleep mode. [1814559]
        •[GeForce GTX 970][SLI]: SLI cannot be enable unless Norton 360 is disabled or Windows is booted in Safe Mode. [1919094]


      Software Module Versions
        •NView - 148.47
        •HD Audio Driver - 1.3.34.26
        •NVIDIA PhysX System Software - 9.17.0329
        •GeForce Experience - 3.6.0.74
        •CUDA - 8.0
       
       
       
       
       
       
       
      Windows 10
       64-bit
        32-bit 
             Windows 7 & 8.1
       64-bit
       32-bit
       
    • By An0npl4y
      Hello all here at T|I, I have good news!
       
      OK so it's a lon,g story, I'll try to make it short but I want to give as much informations as possible so it can help anyone interested about such project.
       
       
       
       
      The story is how to go from this (stock 675m):
       

       
      To this (MSI GTX 1070 MXM):
       

       
      I used to be a gamer when I was younger, then I worked a lot and had no time to play. I came back to gaming last year, and noticed my 2012 M17X R4 was not really up to date for gaming, so it needed to be upgraded. Before you try to do the same, you must be sure you have pretty good knowledge of computer hardware and software, because you may brick your laptop or your GPU in this process, be careful!
       
      In order to get a MSI GTX 1070 MXM fully working on a Alienware M17X R4, you need:
       
      - unlocked BIOS
      - the 120 Hz screen
      - UEFI boot with GPT partition
      - find a MSI GTX 1070 MXM
      - dremel the chassis
      - mod the heatsink so it can fit the GPU
      - make good BIOS settings so you can boot with the new GPU
      - install driver with modded .inf
      - fix GPU throttling issue
       
      OK, let's go for the big upgrade, step by step.
       
      Unlocked BIOS
       
      Eveything you need to know is here: https://www.techinferno.com/index.php?/forums/topic/1516-m17x-r4-unlocked-bios-versions/ Thanks to svl7 for this great share!
       
      120 Hz screen
       
      You can find it on Ebay, for example here: http://www.ebay.com/itm/162380820165?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
      It's required because pascal GPUs need EDP mode to run. The nice thing is there is one LVDS connector in M17X R4 motherboard, even if you have a 60 Hz screen, so you can make the upgrade.
      It's pretty easy to install, but you may have no boot issue with it, like I had. This is when I had to install unlocked BIOS so I can set graphic settings which let laptop boot with the 120 Hz screen. From what I remember, required setting  was "Primary display" to PEG, see here:
       

       
      GPT partition and UEFI BOOT
       
      I had MBR partition, and since I'm using my laptop for working I didn't want to reinstall everything. I used a very nice tool to convert my system SSD parition from MBR to GPT called EASEUS Partition Master (they also provide partition and data recovery tools for years, maybe you already know this company): http://www.easeus.com/partition-manager-software/convert-mbr-to-gpt.html
      They offered a discount so is cost me around 30$ to convert without having to reinstall, which is cheap for the time and all datas it saved me.
       
      Then, you just need to make sure your boot options are set to pure UEFI, which means Load Legacy option ROM is disabled, here in the BIOS:
       

       
      I noticed it can't be disabled if you're running a GPU which vbios doesn't have UEFI compliant driver. If this is the case, you'll get the "can't detect MXM card GOP driver" error like this:
       

       
      Once again, thanks to svl7 you can fix this using vbios with UEFI driver for your GPU: https://www.techinferno.com/index.php?/forums/topic/2079-m14x-r2-m17x-r4-m18x-r2-uefi-fast-boot-secure-boot-gpu-issues-solved/ This is not what I did, I just enabled integrated graphics again (it's UEFI compliant), so I can disable Load legacy option. Then I could put the 1070 in, and boot successfully. With this option enabled, I had 8 beeps "GPU not recognized" error at boot, stuck with no POST like a loser.
       
      GO BUY A GTX 1070 MXM
       
      Here too, you can get headaches. It's expensive, and hard to find. I searched a lot, and I can give you a few advices. For me, you have mainly 3 choices:
       
      - contact Lee James Wood, who is member of this forum and very serious seller: https://www.techinferno.com/index.php?/profile/3501-lee-james-wood/
      You can also check his website: https://store.alezka.com/en/ and his Ebay store: http://stores.ebay.com/woodzstack666?_trksid=p2047675.l2563
      I must say I contacted him, and at one point I had no answer, so I contacted another seller. But he explained me it was because for some reason he didn't received notification from the forum so he didn't knew my message, and missed the sale. But even he was not the seller, he gave me some advices which were really helpful when I was stuck with 8 beeps no boot problem because of the Legacy mode yesterday. Thanks a lot man, maybe you missed this sale but I'm sure you'll get lot of others since you're so helpful, thanks again!
       
      - go buy directly from China, where you can find it much cheaper. You have one chinese marketplace to rule them all: it's called taobao: https://world.taobao.com/
      Problem is if you don't speak chinese, you may have trouble just to get their chat software working, it's same kind as alibaba trade manager for those who knows. So buying from taobao is like entring an unknown area, sellers there mostly only speak chinese, some don't want to sell out of China, so it's really weird to buy from there. But prices are really interesting, for example around 3000 Yuans (410$) for a GTX 1060 MXM, and around 4900 yuans (665$) for a GTX 1070 MXM. If you're looking for a cheap pascal MXM GPU, this may feel like heaven:
       

       
       
      -instead of trying to learn chinese, find a way to make dropship. There are lot of companies for taobao drophip, like Yoybuy for example.
      I found a russian MSI forum member whose nickname is Onside182, his name is Andrew and I made the deal with him. He knows Taobao sellers, so he dealt with that for me. He was serious and helpful too, and you can chose to contact him on russian forum: https://forum-ru.msi.com/index.php?action=profile;u=1111063 (you must be registered there to see his profile), or just contact me so I give you his email address, he'll deal for your taobao order and you can pay him with paypal.
       
      Let's make some room inside
       
      Yeah  know it's bad, but honestly I don't care about chassis integrity when it's time to get overkill Firestrike score. So yes, you have to dremel the chassis to make some room so the MSI GTX 1070 will fit in. First, you need to disassemble the whole laptop, so you can get the motherboard out:
       

       
      You need to remove little sides on the MXM connector, so the card can fit in. Before
       

       
      After:
       

       
      You must get a modified MXM connector like that:
       

       
      Then you also need to cut part of the chassis, here is the result:
       

       

       
      Now, you can install the card:
       

       
      MOD the GPU heatsink to improve cooling
       
      Here you have 2 ways: keep stock heatsink, and mod it so it can fit as explained here: https://www.techinferno.com/index.php?/forums/topic/10982-m17x-r4-gtx-1060-upgrade/#comment-155003
      Or build a custom made heatsink. This is what I did, I ordered this heatsink with the GPU: https://world.taobao.com/item/540331819333.htm?spm=a312a.7700714.0.0.ZzDuN1#detail%201%20sortie%20sur%20le%20cot%C3%A9%20ok%20et%204%C3%A8me%20stripe%20pour%20cpu%20ok
      It was designed for a MSI computer, but it can be modified for the M17X R4 since copper stripes are soldered horizontally. You need to unsolder it, and solder the copper stripes and radiator from stock heatsink instead. You also need to cut off the part which must cover the CPU heatsink, which is not useful. This way, you have a more efficient heatsink, because it was designed for pascal GPU:
       

       
      Soldering heatsinks is crap, when you heat one side, you can easily unsolder the other side by mistake because all heat will be transmitted everywhere very quicly. The trick is to put side you don't want to unsolder in water, and heat the other side where you want to unsolder with a torch. But I warn you: soldering this stuff is a real nightmare.
      With my modded heatsink (which is so ugly and crappy I can't even make picture of it for now), I reached 72°C max while benchmarking, which seems to be pretty good temp. Right now writing on forum, GPU temp is at 55°c.
       
      Spend some time finding the good BIOS settings
       
      You'll have to try out some settings, and you may have no boot issues, black screens, and many errors. You'll feel very lonely at this time, I know. But searching forums saved me most of the time! If you're in trouble, just search and ask
       
      You can boot? Well you still have to wait a little until it works!
       
      Once we're here, we can boot with the GTX 1070 inside the laptop, and it appears as something like Microsoft basic display in Windows device manager. So we need to download official driver from Nvidia, extract it and mod the .inf file. I used this howto: http://null-bin.blogspot.fr/2015/08/how-to-modify-nvidia-notebook-driver.html
      There are many others, it's well documented on the web.
       
      Lines I added are those ones:
       
      %NVIDIA_DEV.1BE1.057B.1028% = Section408, PCI\VEN_10DE&DEV_1BE1&SUBSYS_057B1028 and NVIDIA_DEV.1BE1.057B.1028 = "NVIDIA GeForce GTX 1070" Then it just installed fine after disabling Windows driver signature enforcement of course. I could even install whole Nvidia Geforce experience stuff.
       
      The GPU POWER LIMIT throttling issue
       
      OK so you think it's installed, now it's over, after all those countless hours searching, testing and tweaking our good old M17X R4? Of course you launch a benchmark, and now you notice another problem. GPU core frequency is good, then it goes low, then it goes high again, then low again... GPU is throttling. I went into HWinfo, and noticed GPU power consumption was going higher than 110W, then I had GPU throttle, it went down around 50W, then it went up again, and so on... I searched and found nothing. I thought it was because I only have 240W PSU and I must change for a 330W one. Then and angel appeared and said to me "Hey, man, this must be a BIOS setting related issue, just fix it". So I went in the BIOS again, and I noticed this setting called "adapter warning". I just disabled it, and now it's running fine. When checking, I can see I still have POWER LIMIT message, but it doesn't slow down GPU frequency, no throttling anymore.
       
      This is the funny part where the 2012 laptop kicks ass to BGA craps
       
      Yeahhhhhhhhhhhh!!! We can say we made it, the MSI GTX 1070 is working in the Alienware M17X R4:
       

       
      Now, please have a look at this latest Alienware 17 R3 (BGA crap) Firestrike result: http://www.3dmark.com/fs/8941795 Yeah I know, this is serious expensive hardware we have here: a 6820HK CPU and a GTX 1070, such Alienware laptop must cost around 2500$, no? Of course, my poor old laptop cannot not beat this beast, what do you think?
       

       
      Here is benchmak I just made today, with little OC, it's not optimized at all: http://www.3dmark.com/3dm/19201328
       
      Ladies and gentlemen, on the left we have my 2012 M17X R4, and on the right a brand new 17 R3: http://www.3dmark.com/compare/fs/12289770/fs/8941795
       
      To finish, before I can go at last trying to play GTA 5 at maxxed out settings, here are some links which were very useful, and can help if you want to make such mods.
       
      MSI 1070 in Alienware ranger by loafer987: http://forum.notebookreview.com/threads/msi-1070-in-alienware-17-r1-ranger-success.797893/
      German Alienware forum with huge CPU and GPU heatsink mods: http://alienware-forum.de/index.php/Thread/7254-AW-17-R1-CPU-Heatsink-Pipe-Mod/
      http://alienware-forum.de/index.php/Thread/7254-AW17-R1-CPU-GPU-Heatsink-Pipe-Mod/?pageNo=2
      http://alienware-forum.de/index.php/Thread/8042-AW17-R1-3D-120Hz-GTX-980-N16E-GXX/?postID=69530#post69530
      Zotac BOX GTX 1070 MXM in Alienware 17: http://forum.notebookreview.com/threads/alienware-17-r5-gtx-1070-mxm-3-1b.800137/
       
      I hope sharing all those informations helped M17X R4 owners to keep faith in this old good laptop. I'm pretty sure it can also handle a GTX 1080 by the way, if someone is willing to try (I can't be the guinea pig for the next step) it would be nice
    • By Wunderforce
      Specs:
      Windows 7
      Lenovo w510
      12 g ddr3 ram
      intel i7 Q720 @1.6ghz
      discreet card: Nvidia Quadro Fx 880M 
      egpu setup: GTx 960 card hooked up via exp-gdc v8 dock via pci express card
      Using dell 220w psu (12v, 18Amp)
      Using an external monitor hooked to 960 via hdmi
       
      The Problem:
      Drivers successfully installed, device manager shows GTX 960 and shows it functioning properly. However, no external monitor can be detected.  Aditionally, when installing the 960 drivers, it broke the 880M (shows up as error code 43 in device manager iirc).  So currently I'm stuck with crappy display on the internal monitor (internal graphics? even though I don't have intel integrated graphics..) and no external monitor detected.
       
      I read in the FAQ section that trying to get a dgpu and egpu from nvidia to work is about getting them to run on the same drivers, but it was not clear at all about how to go about doing that.  Plus the cards are so far apart in age I'm not sure how to even begin to go about trying to find a drive that will run both.
       
      What I have done so far:
      Disabled pci power managment, this allowed the egpu to be sucessfully detected.  Showed up in device manager as "generic vga device" or something like that.  Downloaded and installed appropriate nvidia drivers for 960, restarted computer. Computer running on crappy internal(?) graphics card (cant even display full screen resolution) , error for dgpu in device manager (error only goes away after uninstalling 960 drivers and reinstalling dgpu drivers), 960 shown as working fine.  Disabled dgpu in device manager (I don't have the option to in the bios for some strange reason, screen shot attached), restarted.  Upon restart device manager shows 960 working fine, however, no external monitor detected and computer internal dsiplay still running on crappy internal(?) graphics card (cant even display full screen resolution).
       
      Any help would be much appreciated.  I feel like I should be pretty close since the egpu was detected and is shown as running ok in the device manager...
       
       

    • By J95
      Game Ready
        •Provides the optimal gaming experience for Prey, Battlezone, and the Gears of War 4 Multi-GPU Update.

      Added or updated the following SLI profiles:
        •Sniper: Ghost Warrior 3
        •Warhammer 40,000: Dawn of War III

      Added or updated the following 3DV profiles:
        •Warhammer 40,000: Dawn of War III - Not recommended

      Changes and Fixed Issues in Version 382.05
        •[SLI][No Man’s Sky - with The Foundation Update 1.10 patch]: With SLI enabled, there is texture corruption in the game. [200257478]
        •[SLI][GeForce GTX 670][World of Tanks]: In SLI mode, blue-screen crash occurs when pressing Alt+Tab during the game. [1895732]]
        •[GeForce GTX 1080 Ti][Gears of War]: After the bootup movies, blue-screen crash occurs pointing to nvlddmkm.sys. [1914184]
        •The NVIDIA Control Panel in the Windows desktop context menu, as well as the NVIDIA system tray icon, may be absent. [200298863/1906498]
        •System may hang at a black screen upon cold boot up. [1913854]
        •In a multi-display configuration, the extended displays are unable to enter sleep mode. [1902053]


      Software Module Versions
        •NView - 148.47
        •HD Audio Driver - 1.3.34.26
        •NVIDIA PhysX System Software - 9.17.0329
        •GeForce Experience - 3.5.0.70
        •CUDA - 8.0
       
       
       
       
      Windows 10
       64-bit
        32-bit 
             Windows 7 & 8.1
       64-bit
       32-bit
    • By sslmm
      Hi there.

      I've been noticing performance drops on some games associated with low GPU usage. The games run fine at 60 fps + for the most part and the gpu usage is above 80%. But in some areas the fps drops dramatically to mid 30fps and the gpu usage drops to 30-40% too. Even on Borderlands Pre-sequel, where the game usually runs at 120-90 fps, sometimes drops to 40-35 fps (with physx on low setting wich i think is the same as OFF).
      My CPU usage never hit 99% or near that on that sections so i hope it isn't the CPU bootlecking.
      And it isn't Temperature Throttle, because the temps are about 70º on those moments (my gpu only gets really hot when its usage get's above de 90%).

      Other thing i noticed was that with the latest nvidia drivers that i got to work (376.33), when i turned physx to higger settings, the performance got a drop but it didn't show any physx effects anywhere on the game. Another thing that doesn't work is the Nvidia Gamestream because it always gives error trying to connect from another device.
       
      Performance wise, it looks like i'm getting the same performance as my girfriends clevo P651SE that has an 970m, and on that laptop, i can connect to nvidia gamestream using the same method that fails on my laptop.
       
      Could the reason be the new drivers? It is getting more dificult to install new drivers on this model and i can see that some functionalities are starting to fail. 
      By the way, i don't overclock any of my components.
       

      My System Specs are :

      - Clevo P150EM with PremaBios V2 and PremaVbios V2 Flashed
      - nvidia 980M
      - I7-3820QM
      - 16gb of RAM
      - Windows 7 64Bits
      - 180W powersupply with 1 year of use ( I bought a new one from a CLEVO P651SE because it was smaller than my stock one, and my original was starting to fail, just outputting 130W from the 180W, making my internal display dimm the Light when i pushed my 980m just a little bit more)


      Thanks in advance