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- Computer HP 800 G1 start but no screen and beeps codes (8)

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01-31-2019 02:59 PM
Product: HP 800 G1 Elitedesk
Computer start but there is no image and i have 8 beep codes constantly.
Already tried removing the battery, pressing the onboard cmos button and start computer with Windows+B keys prior to push the start button.
power supply, cpu are ok.
There is no clear cmos jumper on the mainboard.
Is there is a way to flash the bios from a usb drive? and if yes, how do i create such a drive.
I already have downloaded the latest bios files from HP and i need to know how to create the drive with bios files on it.
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