New GPU with old mb won't work properly

alexhs1121

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Dec 1, 2015
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Hello to the internet, i recently bought a gtx 780ti oc ii from ebay for some badass gaming. i went and bought a 700W psu to power the whole thing. problem here is that it takes several minutes to boot, meaning its showing me the bios boot screen for minutes while not letting me get into the bios settings nor anything else. a few beeps every 30 seconds (googled the meaning - nobody know - oh wonder) then boots windows normally and fully functional. even hardcore gaming is possible. so i put in my old gpu and everything worked without anything to be upset about. went into bios setting to let me see errors on boot. 780ti back in. booted and it just said "acer...something (non-error like)" and didn't let me do anything again. went to a shop to test the 780ti. they put it in their rig - no problems. he said it's a marketing trick from my mainboard manufacturer (acer dib75l-lena btw) which would have a set of device IDs in its bios and if the new device isn’t in the bios it'll fuck up your system. end quote. he told he once tried to flash a bios from a similar base motherboard and didn’t continue cause it's too complicated. since my mb has a 1155 socket I’d have to get a new cpu (which I don’t wanna do cause its expensive and i already got a good one) I’m asking you how much truth there is behind aaaaallll of the stuff i said and if it is possible to flash a different bios to make it work.

oh and i contacted acer and asked about the manufacturer of the mb (like msi, asus or some other companies) and they told quote "aLena Intel B75 Acer Logo V1.0 LF DB.SJL11.001" end quote and i have absolutely no clue what the hell that’s supposed to mean. if there is a possibility of flashing something to make it work, I’d actually like to try it. even if it fries my mb. then i know it’s not possible and will go get a new mb/cpu.

And to everybody reading this far: thank you for your patience! 😀
 
Solution
i think your problem is in the motherboard.
PCI-e slots deliver power to the GPU to, so if the current motherboard is capped from the factory then only deliver certain amount of power to the PCI-e slot + you have a hardware limitation and in the BIOS software too
your best thing to do is buy a new motherboard (Asus, MSI, etc) and put the current cpu, memory etc and it will work
i think your problem is in the motherboard.
PCI-e slots deliver power to the GPU to, so if the current motherboard is capped from the factory then only deliver certain amount of power to the PCI-e slot + you have a hardware limitation and in the BIOS software too
your best thing to do is buy a new motherboard (Asus, MSI, etc) and put the current cpu, memory etc and it will work
 
Solution


Ok. I'll just get a new mb then. Thanks 😀