Software Support > GroovyMAME
Atom-15 - Unclear which operational ranges to select
buttersoft:
Do you get a picture on the LCD during boot and then also once windows loads? This is from the same video port as the CRT would be plugged into? And after patching for 15kHz with Atom15? If so, are you sure the LCD is capable of displaying 15kHz?
Lakersfan:
Not sure I understand the question fully, however when it is connected to my LCD, yes it fully loads and boots like normal. Picture looks like a normal PC would. When I plug my arcade monitor screen into (same video port), I get the out of range error.
So to clarify, I have an older LCD monitor with a DVI port and it works fine; I have my arcade monitor with a VGA serial connection (with DVI adapter - https://www.amazon.com/gp/product/B07MSGX355/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1), plugged into the DVI port of the PC and I get the error.
buttersoft:
And out-of-range message on the CRT is almost certainly the PC not delivering 15kHz but something much higher. I realise the CRT monitor is multisync, but if you flashed Atom15 at 15kHz, and the CRT can't show the resulting video mode, while the LCD can, it's almost certainly NOT 15kHz and is defaulting to something much higher like 45kHz. Do you have any way to check that? A multimeter that can read frequency could measure the h-sync line?
It might just be that while you got the card to flash, it's not working right even so. Then again it might be solvable, so if you want to keep asking we're happy to keep answering :)
I do sell 15kHz protection dongles that work well as 15kHz de-tection devices. But they aren't going to pass higher scan rates, so you wouldn't be able to use one if you want to go multisync - which is great to do if your monitor can handle it :)
Lakersfan:
--- Quote from: buttersoft on July 19, 2023, 08:18:58 am ---And out-of-range message on the CRT is almost certainly the PC not delivering 15kHz but something much higher. I realise the CRT monitor is multisync, but if you flashed Atom15 at 15kHz, and the CRT can't show the resulting video mode, while the LCD can, it's almost certainly NOT 15kHz and is defaulting to something much higher like 45kHz. Do you have any way to check that? A multimeter that can read frequency could measure the h-sync line?
--- End quote ---
I don't have a multimeter that can read frequency, but out of curiosity, what would your response be if I did check it and you were right? What are my options to check next?
Calamity:
Hi Lakersfan,
That card is outputting 1024x768 for sure, that's why your monitor's osd reports 48.3 kHz. So probably the flash process didn't go well, or the wrong bios got flashed, no idea.
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