Z77A-G45 : My pc doesn't post after switch on

Hello,
A few days ago, I connected on my PC a friend's hard disk in order to check it (I used the SATA port of the DVD Reader). When I have disconnected it and I have tried to boot, I didn't see the post after switch on. Now, I can't manage to boot or to go on the boot menu by typing F11 or DEL. I can hear the hard drive but I don't see anything on my screen.
Thanks in advance.

Maybe by a mistake you have connected your computer to the monitor through the motherboard's video port, not through graphics card? That might be a problem you don't see anything. Also try alternate way of video cable, like VGA or DVI.
If you have graphics card then try with removing it and connect motherboard's port to the monitor.
And possibly, if that's not mistake (see above), then yes, try clearing CMOS.
>>Clear CMOS Guide<<  If needed

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    Have learned a lot just reading the threads here for the last few days.  This is the best forum I've ever encountered.  I'll report back - some suggestions in other posts resembling my problem ended with no resolution, and that's a shame because one doesn't know if it worked or not.

  • Boot problems with Z77A-G45

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    Afterwards go into the BIOS and set that memory to 1333, (ensure that XMP is disabled for now). Set the DRAM voltage to 1,5V. Retest and advise.

  • MSI Z77A - G45 - CPU multiplier problem

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  • [Z77A-G45, S01, S40, S03 & G45 MVP] BETA Version [E7752IMS.2xx Releases]

    E7752IMS.250  ==> E7752IMS.264
    1.Fix the keyboard QPAD MK-85 cant use in setup.
    2.Fix core Ratio Limit can not load default in BIOS setup menue after "Click BIOS2" change  core Ratio Limit  value.
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    4.Change some item string
    5.Fix adjuest cpu raito function error issue.
    6.MRC Fast item show only when use user password.
    7.Fix show oc fail message when set CPU Base Frequency to some frequencies like 10001*10khz
    8.Fix XMP auto enable when use IVB CPU and dram ratio is auto     
    9.Fixed fast boot caused s3 reset when press ¡°F2¡± after  cpu memory change and OC retry fail .
    10.Update vbios 2137.
    11.Fix use PS2/USB Keyboard combination key(Shift+.. /Alt+.../Ctrl+.... ) Can't to Set name at BIOS Setup.
    12.USB KB Can't Use at Post  when Connect up PS2 MS and usb kb On the mainboard.
    13.Fix sometimes tpm item lost in setup.
    14.Fix the "Event Kernel-Power 137" error event log shows while resumed from HS3/S3 with  Core i5-3470 and Core i5-3570 on Win8 systems.
    15.Fix TPM item enabled issue when load default after.
    16.Update USB module to 22.
    17.Fix OC Genie setting not set to item after OC Genie function enable.
    18.Fix sometimes system will hang up in the shutdown process after idle it for some time.
    19.Set CPUEnergyReadEnable & CPUTempReadEnable default to disabled.
    Please note that flashing this release occurs entirely at your own risk!
    For BIOS Update >>Use the MSI HQ Forum USB flasher<<
    *NOTE: Make sure you unplug your PSU from A/C power and properly >>Clear CMOS Guide<< after flashing.

    E7752IMS.264  ==> E7752IMS.266
    01.Add new bom Z77A-G45 MVP.
    01.Fix some memory cause bios hang 0x3b or 0x4f when overclock cpu ratio to 42.
    02.Finetune G.Skill memory command rate timing.
    03.Support amp function.
    04.Fixed MSI keyboard ES300MU can't detect.
    05.Fix the issue that setting item "Command Rate" to 1t causes an unnecessary cold reset when bios was postting.
    06.Fix some PCIE card can¡¯t detect issue.
    07.Fix use usb card reader error issue when update usb 022 module.
    08.improve memory performance.
    09.Fix DRAM frequency incorrect issue when use Patriot PV316G213C1K memory and XMP is enabled.
    10.Fix Adjusted DRAM Frequency and XMP info incorrect issue when use XMP 3000 memory and if XMP 3000 profile is enabled then force run 2800.
    11.Fix Adjusted DRAM Frequency incorrect issue when XMP is enabled and set different DRAM frequency.
    12.Add Gigadevice 25Q64BSIG" SPI ROM support.
    13.Fix system hang on 0x55 issue when use Team Team-Elite-1866 memory.
    14.Fix system hang on 0x55 issue when use SPD 800MHz memory and Sandy Bridge CPU.
    15.Fix item "Internal PLL Overvoltage" always Enable when over clock cpu ratio.
    16.Set item "Intel C-State" to enabled when use some special cpus
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              cpu ratio to the ratio higher than the ratio 4 cores can reach
              at the same time. 
    17.Fix item "Adjust CPU Ratio" show error when adjust cpu ratio.
    18.Fixed PLL function enable caused set tRTL timing hang issue.
    19.Add language: Indonesian,Thai and Vietnamese Finalize.
    20.Add M-Flash support ME FW update solution.
    21.set  SMLink1 Thermal Reporting Select to ture.
    Please note that flashing this release occurs entirely at your own risk!
    For BIOS Update >>Use the MSI HQ Forum USB flasher<<
    *NOTE: Make sure you unplug your PSU from A/C power and properly >>Clear CMOS Guide<< after flashing.

  • MSI Z77A G45 boot loop

    Hi everyone!
    I just tried to flash my MSI Z77A G45 today from the bios version 2.1 to 2.A.
    I had blackscreens all the time when i tried to flash it with the M-FLASH utility from my bios.
    Then everything just started normaly (after each blackscreen), but there wasn't any update, i tried to force the update with LiveUpdate.
    And now when i try to start the computer, i just get a blackscreen (no signal for the monitor) and a boot loop.
    It just stops and reboot after 10s.
    My hardware is working perfectly, i think this is from a corrupted bios issue.
    Which things i tried:
    - Doing a clear CMOS (nothing happens)
    - Removing the CMOS battery for 10 minutes (the reboot loop stopped, but there was not any display, i restarted the PC then and the reboot loop started again)
    - Cleaning my PC (from dust and things like that), it was not efficient at all
    - Booting from a USB key with the bios in, and formated as FAT32, nothing happens too. It doesn't recognize the USB key and anything else (keypad etc.) so the blackscreen was there again.
    My Hardware:
    CPU: Intel Core i5 3570 3.4 Ghz
    Motherboard: MSI Z77A G45
    GPU: None (Intel graphics 4000)
    RAM: 2x4Gb Corsair Vengeance
    HDD: Crucial M4 SSD 64Gb
    Power supply: Corsair 850W
    Do you think that i need to send my mother board back to the RMA?
    I hope you will be able to help me, or find a solution 
    Thanks in advance

    You can try the steps found here https://forum-en.msi.com/index.php?topic=119375.0
    Otherwise, it is RMA time.
    Next time use the forum flash tool and archives found on the forums.

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