Performance degrades in Probook s 4540 after upgrade memory

Hello. I installed recently in my memory modules two Kingston Probook4540 (2x8gb ddr3 1600 CL10 240 pins). Since I did this, Windows 8 is much longer to start and performance dropped considerably. But, if I put only one of the two modules, or the original 4 GB module, Windows runs at normal speed.

I think it's a BIOS problem, as I see this error even on laptops the other brand, for example here

I have the latest BIOS version available (F31 26-SEP-2012).

Thank you.


In case anyone is still interested in this topic:

It is a solution that worked for me.

It is not an official solution or supported.

I used the laptop intensively in the described configuration and had no problems that I can relate to the configuration of the memory.

Deduct from a 256 MB RAM memory available for OS could eliminate the problem for some processors.

The solution runs on:
-HP 4540S

-i5 - 2450M

-AMD/Intel switchable graphics card


-Bios F.42

It might work for other processors.

Under Windows, you should deduct 256 MB of RAM, using EasyBCD or a similar tool.

Instructions for EasyBCD:

Under Advanced settings/developer set 256 under "MiB deducted from physical memory", save the settings and reboot.

In Linux, the "mem = 17G" value in the boot of the kernel settings (actually deducted 256 MB).


On Windows 7 and later versions, you can also use the following instead of EasyBCD:

bcdedit/set {current} removememory 256

(Run the command at the prompt with administrator privileges and restart).

Tags: HP Desktops

Similar Questions

  • Satellite L100 113 starts slowly after upgrade memory


    Toshiba Satellite L100 113 PSLA3E-02401JRU starts slowly after upgrade memory with Kingston KTT533D2-512 (512 MB) of memory.
    When I press the 'power' button, it flashes, starts the fans and HARD drive several times. Then it shows BIOS start messages by memory full 768 MB and starts Windows XP without a problem.
    This behavior is noticed only after "shut down."
    It does not happen with "restart".
    What can I do to eliminate this long "attempts" to start my laptop computer?

    Thank you
    Novomir Kovalenko


    This problem appears before upgrade memory?
    Have you used exactly the same memory modules?
    If this isn't the case, then perhaps there are a few compatibility issues.

    Usually, after the insertion of the modules you must enter the BIOS and then save the settings. Please it and eventually the laptop will start without any problems.

  • Firefox 4 beta too slow / crashing after upgrade memory?


    my beta firefox started crashing my whole system yesterday and only noticeable change I did was upgrade memory of 3 to 4 GB of RAM...

    I tested my system widely and it works very well until firefox is started, after that, the system started crashing and takes forever to be reactive. I uninstalled and reinstalled firefox, tried running without addons, I tried to close all the tabs and all Eske I remembered... still no luck.

    I am desperate because I really wanted to keep this beta on my computer, and cuz is a new facility, I can not install firefox 3.6 on side by side, I only have an option 'upgrade' on the installation wizard...

    What can I do to fix this?

    Thanks in advance!

    The steps to troubleshoot and diagnose problems of Firefox would say you always try in questions to troubleshoot Firefox in Safe Mode of course some additional software may conflict, it is even more likely if you are using a beta version of firefox and probably the beta or alpha some of the addons or plugins.

  • Cannot get any sound on my speakers after upgrading memory

    just updated my computer by adding more memory but I can't get any sound on my speakers

    Hi RawleHouston,

    Thanks for posting your question in the Microsoft Community.

    I understand that you can not get any sound of your speaker after upgrading your memory. Correct me if I'm wrong.

    I imagine the inconvenience that you are experiencing. I will try to help you in the matter of fixing.

    To help you suggest several steps to solve the problem, I would appreciate if you could answer the following questions:

    1. What is the brand and model of the computer?

    2. you receive an error code or message?

    Please follow the methods and mark the question below:

    Method 1:

    Step 1:

    Run the Microsoft Fix It from the link below.

    Diagnose and automatically fix the audio problems and audio playback:

    Step 2:

    Follow the steps in the link below.

    No sound in Windows:

    Method 2:

    Follow the steps in the link below.

    Tips for solving common audio problems:

    I hope that the information above helps you, and if you encounter any problems on Windows, please do not hesitate to post your request here on Microsoft Community, we will be more than happy to help you.

  • Satellite L50 - A - 1 5 PSKK6E does not start after upgrading memory

    Upgrade memory L50 - A - 1 5 pskk6e

    I have a memory ddr3 4 gb 1rx8 pc3 - 12800 S-11-12-b2 hynix and I tried to add another memory
    memory DDR3 4 gb 1rx8 hynix pc3 - 12800 S-11-11-b2, but it does not boot up the laptop.

    I tried to mount only the new but it won't start.

    Some ideas?

    I think that it s you already know that this Satellite L50 - has - 1 5 would support max 16 GB of RAM (2 x 8 GB)

    But why, box for computer laptop doesn t is very simple: the new modules are not compatible.

    I found modules recommended by Toshiba.
    These are:
    8GB DDR3L - 1600 PA5104U-1M8G
    4 GB DDR3L - 1600 PA5104U-1M4G

    Both are made of Kingston and the specifications are:

    Memory speed: 1600 Mhz PC3-12800
    Capacity: 8 GB (1x8GB module)
    Pins: 204 SODIMM
    Type of RAM: DDR3 SODIMM
    Verifying the integrity of data: non ECC
    Latency (CL) CASES: 11
    Voltage: 1.35v

  • ProBook 4520 s: lack of features on a ProBook 4520 s after upgrade Windows 10

    Hello dear community

    Long story short: I have a HP ProBook 4520 s and yesterday I upgraded manually (with the tool provided by MS) Windows 7 Pro to Windows 10 Pro. Everything went very well and smooth and it works perfectly well until now.

    The problem is that some of the features of the laptop no longer work. Here are some examples:

    -Highlight the option on touchpad

    -built-in camera

    -Some FN buttons like the one for the brightness of the screen while others (for example, the volume and email) working

    My reasoning is that it lacks certain drivers or these functions are somehwat is not compatible with the new OS (it's a 5 + year old PC after all), but I could be wrong. I'd like to hear some suggestions and opinions on this.

    If someone needs to my specifications complete, there are:

    Operating system: Windows Pro 64-bit 10
    CPU: Intel Core i3 330M @ 2.13 GHz 61 ° C Arrandale 32nm technology
    RAM: 4.00 GB Dual - Channel DDR3 @ 532 MHz (7-7-7-20)
    Motherboard: Hewlett-Packard 1411 (CPU 1)
    Graphics card: monitor generic PnP ([email protected])
    512MB ATI Mobility Radeon HD 4500 Series (HP)
    Storage: 1043GB Western Digital WDC WD1001X06X-00SJVT0 (SSD) 42 ° C Black2
    Optical drives: DTSOFT device CdRom virtual hp DVDRAM GT30L
    Audio: AMD High Definition Audio Device

    Thank you for reading. All the tips and comments are appreciated.



  • Satellite M30X-122 does not start after upgrading memory


    I want to upgrade the RAM in my Satellite M30X 122. Correctly my NB contains 2x256MB.
    I bought a GB 1 333 MHz. Cl2.5 module PC2700 (corresponds to the former, but more grand ;-)))
    Now I build in the module, but after the build-in system is dead.
    It doesn't show anything on the screen (after pressing the button one)).

    Does Anyboby have some tips?

    Thank you very much


    Toshiba has recommended the use of these memory modules:
    PC2700 256 MB (PA3311U - 1 M 25)
    PC2700 512 MB (PA3312U - 1 M 51)
    1024MO PC2700 (PA3313U-1M1G)

    Well, the size of 1024MB should be compatible. In this case, it s not a module size.
    Have you tried to get into the BIOS? BIOS recognizes the memory module?
    Maybe the module is broken?

    In my opinion, you should check if the module memory works on a different unit. If this module works correctly on another unit if your M30X doesn t support this module of memory and you need one another.

  • R50E does not start after upgrading memory

    I tried to upgrade this laptop from the factory of 512 MB to 1.5 GB. I got a Kingston 1 GB DDR - 333 SO-DIMM, but after I installed it, the laptop does not turn. Only the power led is lit.

    I don't know why this happened, because all tests indicate that it should work.

    1. the new stick is ok. I tested it in another laptop and it worked. I also cleaned the contacts with isopropyl alcohol.

    2. the memory locations are ok. The old memory works in each slot.

    3. I tried to install the new one stick in a slot and it did not work.

    4. This update is officially supported by record of IBM and BIOS is up to date (v2.1, December 2006).

    Unless I'm missing something there is a confusing question. Unfortunately, I don't have an another 1 GB DIMM to test with.

    yehuda1 wrote:

    TBut I don't think it's a matter of density. something fundamentally wrong with this system. I just discovered that I can not upgrade the memory somehow, even not with a stick of 256 MB. The system starts only with the current key.

    OK... This is not good, but I have to tell you that...

    I guess it's time to throw the boy part of retirement and move to a new machine...

    Good luck.

  • W500 PCI-Express does not work after upgrade memory 4gig

    Laptop is a W500 with WinXP SP3. I have the external ViDock PCI Express video card. Absolutely, it works like a champ. I recently received an upgrade of memory 4gig for the W500. After the upgrade of the default value would be 2gig RAM for the new 4gig, the laptop does NOT start with the inserted PCI Express card. I remove the card PCI Express ViDock and it starts very well and of course, works very well. Same behavior either stand alone or in the docking station. I tried going back to the 2 Gig of RAM and the new ViDock works perfectly. Google is pretty quiet on this issue... This could be a problem with the ViDock? the W500? Windows XP? The memory? Doesn't seem wise for me a memory 'simple' update would disable a component. Thank you,-Ryan

    May be the same as the question TOLUD?

  • Satellite C660 - black screen after upgrade memory

    Can Hi anyone please help

    try to upgrade the ram on my C660 account currently 3GB - talk to Toshiba and they told me the type to get and said im running 64-bit windows, I could go up to 8 GB - then bought the following

    DDR3 1066 MHz sodimm - x [email protected] (£64)

    When I mounted it and turned on the screen is all black.
    Anyone has any ideas please im in the middle of my assignments aaaaaahhhhhhhh!

    And any help would be really appreciated



    Looks like not compatible or faulty module.
    You can start the laptop properly using the old modules?
    If Yes, then the new memory should be replaced by another.

    I recommend modules Kingston I think they make good quality

  • NB305 - does not start after upgrading memory

    Have just bought 2GB memory update for Toshiba NB305-106, and it does not work. Machine unbootable - started 1 GB module.

    Just read a post on memory upgrade problems - different users having problems and they used Crucial memory without any problems. -Is it true?
    Anyone got an advisor?

    Hi ian123,

    If the boot netbook doesn't, additional memory module which means this module is not compatible and you need another.

    It would be interesting to know which module you are buying exactly and what specs it has.
    Can you post this information?

    In General, I have good experience with the modules of Kingston

  • Satellite A100 stops after upgrade memory

    Consider me the thickie Pack 1... Not sure wot im talkin end but n e way...
    Have a Satellite A100 570 (PSAA2E)...

    Tried several websites online lookin for memory upgrade. Did not have the witt to use the toshiba site... Eventually get to the point...
    Ran the Diagnostics on laptop and sent module one needed.or so I thought... wrong 1 or 1 s I bought 2 x 1 G modules in order to 'double '...

    Got my money because they were not compatible with my system... something to do with the problems of density...
    Tried company called OFFTEK... they seemed to know what they were talkin' about... I'm Offtek. at present one...

    200-pin 1.8V SoDimm PC2 - 4200 DDR2... but Toshiba recommended below...

    1 GB memory DDR2 PC2-4300 (533 MHz)
    Part number: PA3411U-2M1G
    1024 MB (1 GB) memory PC2 - 4300 DDR2 (533 MHz)

    Theres an obvious difference... 4200 and 4300. But I'm not sure if there is a significant difference... or what it means
    Update the bios to the version latest and basically put all that toshiba had to offer for this model...

    EVEREST ran and it recognizes the module 1 G but when I pull out the original 512 MB module, the laptop starts for about 3 seconds then stops...
    This repeats about 5 times then fill stop...

    I don't like open the back cover too often but it's the 3rd module...
    Don't know what is supposed to happen if the module works... IE launch message... dunno if windows recognizes module 1 G...
    Would be - this bet safer to send Offtek module and stick with option of toshiba...

    Thanks in advance...

    Hey Buddy

    Have a look here:
    Memory for Toshiba Satellite A100-570

    You can use the DDR2 533 MHz (PC2-4200) 200 - PIN SODIMM bars!

    The pc2-4300 Rams are the same as PC2-4200. It s just a marketing gag PC2-4300 are PC2-4200 modules that can be overclocked by some versions of BIOS PC desktop

    However, you must take the PC2-4200.

  • Re: Screen corruption after upgrading memory

    I upgraded from 4 GB to 8 GB. He is recognized in the BIOS and begins to start. When windows loads the graphic screen, I get an increasing amount of horizontal lines until the machine stops. The BIOS version is 1.9

    Everything is OK is when you remove this extra RAM module?
    By the way: what model of laptop do you have?

  • Satellite L100 113 does not start after upgrading memory


    Our Integrator bring to our company KVR800D2S5, but laptop memory modules does not start :(

    I read manual - this laptop supports 533 PC4200 memory modules.

    But SO-DIMM 533 MHz will be delivered in one month...

    The memory modules, we can install to Toshiba L100-113?

    Thank you.


    I think that the laptop does not power upward because of a barrette memory faulty or not fully compatible.

    Please visit this memory 3rd party:

    [Memory for Toshiba Satellite L100 113 |]

    As you can see Satellite L100 113 memory can be upgraded up to 2 GB (2 x 1 GB) and you must use the DDR2 533 MHz (PC2-4200) 200 - PIN SODIMM


  • Equium M50-192 doesn't start after upgrade memory


    at the moment I have 2 x 512 MB sticks of memory in my laptop, I bought 2 x 1 GB sticks of as an upgrade. When I tried to use the computer will not start until I put the original RAM support. State Mrmemory that they sent me the correct memory for my laptop, I have done no matter what wrong?

    Thank you


    I think that the modules of memory are not fully compatible or defective
    It's the only plausible explanation why start Notepad doesn t
    As far as I know the laptop can be upgraded up to 2 GB of RAM (2 x 1 GB) and this module should be compatible DDR2-400 and 533 Mhz 1 GB (PA3411U-1M1G)

    PS: Have you tried to update the BIOS by using the old memory modules?
    Check if you are using the latest version of the BIOS if it is up-to-date and check if the new modules would

Maybe you are looking for