Black screen after replacing ram

just replaced my ram on macbook mid 2010 from 2gb to 8gb  i get a black screen with 1 beep when i put 1 new and 1 old ram in it works  system says now 5gb both new rams work seperatly but not together

Satellite A215-S5837
We see posts like yours all the time here. It's because Toshiba machines require memory to be within tight specs. With most RAM, it's a crap shot. Eventually, you'll get modules that work.
To always get it right on the first try, buy the memory from Toshiba or get the best made by Kingston.
   Kingston KTT667D2/2G 2GB 667MHz Module
-Jerry

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  • Black screen after upgrading ram (macbook pro late 2007)

    Dear Community,
    I am willing to donate 100 USD to anyone who is willing/able to provide concrete resolution to this problem.
    I am a professional freelance videoeditor and my job is currently stucked due to inability to boot my macbook pro again.
    After upgrading the RAM of my MBP (late 2007 model, 17'' display, Intel 2.4GHz Dual Core processor), the screen went black and the system did not boot any more.
    I tried to replace the orginal 2 x 1GB DDR2 533 CL=5 SODIMM (single rank) with 2  X 2GB DDR2 800 CL=6 SODIMM (dual ranks).
    After the memory upgrade, the system was restarted, I heard a short beep, but the macbook showed a black screen instead of booting properly. The mainboard was powered, the fan was moving. I saw a green led turned on on the center of one side of the macbook.
    I tried to mount the previuos 2 x 1GB DRAM SODIMMs, but nothing happened. The system keeps not booting even with the original memory.
    I tried already several procedures suggested by the user manual, related to SMC Intel controller reset (with battery and without battery and charger), but those were not effective in restoring the normal operation of the macbook. The system keeps not booting with exactly similar issues (black screen, fan on, short beep after power-on, green LED on).
    I also tried to swap the memory DIMMs into the memory sockets. I tried to use a different combination with 1 NEW 2GB and 1 OLD 1GB  DIMM. But the problem is still there with similar sympthoms.
    DOES ANYONE HAVE ANY CLUE OF HOW TO SOLVE THIS?

    My best guess is that you have fried the RAM with static electricity charged up in your body. According to OGELTHORPE a beep on startup is because of no RAM, if when installing you did not do it correctly, you could have fried the RAM, which then your mac will not recognize it. The same with the old RAM, if you tried to re-install it and didn't pull up your sleeve and rest your arm on the inside of the chassis, then it is fried, or if you didn't wear an ESD band and connect it to the the chassis, then it is fried.
    Seen as though you can't startup your mac, I can't say to do an AHT, buy some new ram, and start with the lowest one you can, so its cheap for ya use a different company incase is that;) Crucial.com is really good, I got an 8gb upgrade from 2gb. Let me tell you, it's great!
    Reply back;)
    Chris

  • Compaq CQ62-219WM Showing black screen AFTER replacing it.

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    I found that pressing on the motherboard at a certain point the backlight turns on, which makes me think of a false contact in electronic components, maybe you can resolder using hot air welding to renew, but this procedure has the risk of damage plastic or hot components are out of place, take care.
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  • Lenovo G560 - Issue with won't boot and black screen after HDD upgrade

    Lenovo G560 - Issue with won't boot and black screen after HDD upgrade.
     What happen: My laptop was working fine, no blue screen issue, no funny business at all. I bought a new SSD Intel 120 GB and thought it would be a good idea to replace the HDD. I shutdown and disconnected the power adapter, waited a couple of minutes and removed the battery. I opened up the back case and replaced the HDD. And put all the screws back and put the battery back in.
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    2. I tried putting back my old 2.5" and nothing but black screen.
    Thoughts and suggestions?
    Solved!
    Go to Solution.

    Hi Autoexit173,
    Welcome to Lenovo Community!
     As per the query we understood that you are facing issue with system not booting in your Lenovo G560 laptop.
    As you have mentioned that the system not booting, please try to remove the RAM and  turn on the system and check if you can hear any beep sound. Also try to clean the RAM slots and check for the issue.
    Click here for the steps to remove the RAM and refer page number 40.
    Hope this helps. Do post back if issue persists!
    Best regards,       
    Ashwin.S
    Did someone help you today? Press the star on the left to thank them with a Kudo!
    If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
    Follow @LenovoForums on Twitter!

  • [Solved] Amilo XI 2550 - Black screen after fresh install

    Dear archlinux users,
    I have been reading the archlinux wiki and forums since I started using arch several years ago. It was always possible to solve the problems I ran into by consulting these webpages, therefore a big thanks to the community for the provided help.
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    Maybe of use:
    ls /sys/class/backlight/
    acpi_video0
    radeon_bl0
    less /sys/class/backlight/acpi_video0/bl_power
    0
    less /sys/class/backlight/acpi_video0/actual_brightness
    7
    less /sys/class/backlight/acpi_video0/brightness
    7
    less /sys/class/backlight/acpi_video0/max_brightness
    7
    less /sys/class/backlight/radeon_bl0/bl_power
    0
    less /sys/class/backlight/radeon_bl0/actual_brightness
    255
    less /sys/class/backlight/radeon_bl0/brightness
    255
    less /sys/class/backlight/radeon_bl0/max_brightness
    255
    dmesg | grep drm
    [ 0.736559] [drm] Initialized drm 1.1.0 20060810
    [ 0.743608] [drm] radeon kernel modesetting enabled.
    [ 0.743678] fb: switching to radeondrmfb from VESA VGA
    [ 0.744054] [drm] initializing kernel modesetting (RV630 0x1002:0x9583 0x1734:0x1107).
    [ 0.744065] [drm] register mmio base: 0xCFEF0000
    [ 0.744067] [drm] register mmio size: 65536
    [ 0.744172] [drm] Detected VRAM RAM=256M, BAR=256M
    [ 0.744174] [drm] RAM width 128bits DDR
    [ 0.744257] [drm] radeon: 256M of VRAM memory ready
    [ 0.744259] [drm] radeon: 512M of GTT memory ready.
    [ 0.744275] [drm] Loading RV630 Microcode
    [ 0.744345] [drm] Internal thermal controller without fan control
    [ 0.744386] [drm] radeon: power management initialized
    [ 0.744389] [drm] GART: num cpu pages 131072, num gpu pages 131072
    [ 0.762830] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
    [ 0.762873] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
    [ 0.762874] [drm] Driver supports precise vblank timestamp query.
    [ 0.762937] [drm] radeon: irq initialized.
    [ 0.794780] [drm] ring test on 0 succeeded in 1 usecs
    [ 0.795253] [drm] ib test on ring 0 succeeded in 0 usecs
    [ 0.795942] [drm] radeon atom DIG backlight initialized
    [ 0.795945] [drm] Radeon Display Connectors
    [ 0.795947] [drm] Connector 0:
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    [ 0.795950] [drm] DDC: 0xac0 0xac0 0xac4 0xac4 0xac8 0xac8 0xacc 0xacc
    [ 0.795951] [drm] Encoders:
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    [ 0.795953] [drm] Connector 1:
    [ 0.795954] [drm] DIN-1
    [ 0.795955] [drm] Encoders:
    [ 0.795956] [drm] TV1: INTERNAL_KLDSCP_DAC2
    [ 0.795957] [drm] Connector 2:
    [ 0.795958] [drm] HDMI-A-1
    [ 0.795960] [drm] HPD1
    [ 0.795961] [drm] DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
    [ 0.795963] [drm] Encoders:
    [ 0.795964] [drm] DFP1: INTERNAL_KLDSCP_TMDS1
    [ 0.795965] [drm] Connector 3:
    [ 0.795966] [drm] VGA-1
    [ 0.795968] [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
    [ 0.795969] [drm] Encoders:
    [ 0.795970] [drm] CRT1: INTERNAL_KLDSCP_DAC1
    [ 1.278449] [drm] fb mappable at 0xD0141000
    [ 1.278451] [drm] vram apper at 0xD0000000
    [ 1.278453] [drm] size 9216000
    [ 1.278454] [drm] fb depth is 24
    [ 1.278455] [drm] pitch is 7680
    [ 1.278527] fbcon: radeondrmfb (fb0) is primary device
    [ 1.726069] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
    [ 1.770030] [drm] Initialized radeon 2.39.0 20080528 for 0000:01:00.0 on minor 0
    Until now and amongst others I tried the following things.
    Using kernel parameters
    video.use_native_backlight=1
    video.use_native_backlight=0
    acpi_osi=linux
    acpi_backlight=vendor
    and others I just cannot remember.
    Masking backlight
    systemctl mask systemd-backlight@backlight:acpi_video0.service
    systemctl mask systemd-backlight@backlight:radeon_bl0.service
    Setting bl_power
    echo 1 > /sys/class/backlight/acpi_video0/bl_power
    echo 1 > /sys/class/backlight/radeon_bl0/bl_power
    Nothing of the above was improving the situation.
    Your help on the problem would be highly appreciated.
    Best regards
    mgs
    Last edited by mgs (2014-10-27 10:15:11)

    Hello Trilby,
    thanks for the reply.
    Trilby wrote:If nomodeset worked with the installation medium, why haven't you tried that for the same problem on your installed system?
    The kernel parameter 'nomodeset' results in a working display but without X support, due to the fact that with 'nomodeset' there is no KMS support and therefore no X. But nevertheless I tried it and as expected X did not start.
    Trilby wrote:Could you also post information about your graphics card and what drivers you've installed.
    The graphics card is a Radeon HD 2700 and according to the above dmesg log it is recognized as RV 630. The radeon module is loaded via /etc/mkinitcpio.conf and xf86-video-ati (1:7.5.0-1) is installed.
    I hope the provided information is what you asked for, thanks for your help.
    Best regards
    mgs

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    The Windows Desktop Perfmon and Diagnostic tools forum is to discuss performance monitor (perfmon), resource monitor (resmon), and task manager, focusing on HOW-TO, Errors/Problems, and usage scenarios.
    As the question is off topic here, I am moving it to the
    Where is the Forum... forum.
    Karl
    When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer.
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  • Black screen after login while on battery with graphics switching enabled

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    I had the same issue and managed to reslove it.
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    Cheers!

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