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Atom-15 - Unclear which operational ranges to select

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Lakersfan:
I have a Betson IMP-44-4070-RT multisync monitor that I bought a number of years ago (16yrs to be precise). I'm just getting back into this arcade building game and I'm new to the whole groovymame aspect. I have an AMD RADEON HD7450 card that has the CRT Emudriver installed and seemingly working. (I have it plugged into a LCD monitor for now, not the arcade monitor). I'm at the point where I need to patch with Atom-15 and I am unclear as to which operational changes to select. I selected all three initially and thought I bricked my card. I had to reload the original bios and everything is now back to the way it was. So before I try this again, I'm hoping someone can guide me to which ranges I select. Here's a review of my monitor: https://www.retroblast.com/reviews/betson.html

Thank you!

buttersoft:
Atom15 is a GPU BIOS modding tool. A GPU BIOS is used while your system boots, before the OS loads. As the OS loads, the GPU hands over control to the video drivers. The video modes of the running system have nothing to do with the GPU BIOS.

You don't need to patch Atom15 for more than one, safe range. If your monitor is 15kHz capable, and that review says it is, patch for that and come back later if it works and if you need to.

The drawback to only using 15kHz is that you won't be able to see any UEFI BIOS for your system that uses 800x600 or higher res. You should set that stuff as part of the initial system setup, before loading crt_emudriver or using Atom15. Or plan to remove the card and use a mobo video port if you need to adjust system BIOS settings.

If this was a question about setting monitor ranges in Windows for GroovyMAME, start with the sticky on monitor presets up the top of this subforum, and post again in this thread if you need to :)

Calamity:
Also, the fact that the card got bricked in your first attempt wasn't the result of marking all the three ranges. Instead, it might be some protection in your mobo's bios that forbids unsigned firmware. It's hard to say these days, security paranoia has killed all epic.

Lakersfan:
Sorry it’s taken me a day to respond, but thank you both for your input.

Lakersfan:
I tried to flash this tonight and I got the attached error ... Didn't do anything different from last time, so I'm not sure the reason. Any ideas?

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