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HD 6450 with DVI-I and DisplayPort - good for PC+TV build?
SBYT:
Greetings - I'm working on a PC + TV build. I picked up a 6450 512mb and after reading various guides online I was hoping it would fit my needs. I read this post from Calamity and I'm not sure if a 5450 with a VGA port would be better. https://geedorah.com/eiusdemmodi/forum/viewtopic.php?pid=1052#p1052
"As a note, I have a HD 6450 which is externally identical to my HD 5450, with both DVI and VGA connectors. However, in this case the card has only 1 analog output, on the VGA connector, therefore Analog_0 is the right option. This confused me at the beginning because the DVI port on this card has the hole pattern of a DVI-I (digital/analog), however it's actually a DVI-D (digital-only). Beware of this."
My 6450 doesn't have a VGA port, it only has a standard looking DVI-I (Dual Link) port and a display port, nothing else. Is there a chance that the DVI-I is not going to output an analogue signal?
Card is almost identical to one like this: https://www.ebay.co.uk/itm/192899709741?hash=item2ce9b7fb2d:g:lTwAAOSwzrlbWzHN
Saying my card works, is it right to think that I can output through a DVI to VGA cable/connector + UMSA + scart cable to my CRT TV once I have all the drivers installed and configured?
https://arcadeforge.net/UMSA/UMSA-Ultimate-SCART-Adapter::57.html
I've included a picture of the card, I don't have the physical card yet so this is just a picture from the place I bought it.
Thanks!
buttersoft:
It's vanishingly unlikely that DVI port won't do analog. And crt_emudriver can output composite sync, so you shouldn't need the USMA, just a cheap VGA-to-SCART cable from ebay to get started.
EDIT: oh wait, you might need 5V (~3V) for your SCART blanking. The cheap VGA-to-SCART cable might not come with a wire for that at all, IDK. Which leads you back to needing the USMA, i guess... unless you're happy wiring a cable up for yourself :)
Zebidee:
I agree with Butters.
Except I don't trust most of the VGA-SCART cables I see online, you never know whats in them, so I make my own.
What TV are you using, and what inputs does it support?
SBYT:
Greetings and thank you for your quick responses! :)
The TV is Sony Trinitron KV-25X5K. It has two SCART ports and some other things - I've attached images.
I was hoping I could get a cheap DVI to VGA adapter and then use a cable like this to take the signal to the TV:
https://www.ebay.co.uk/itm/263775409959?hash=item3d6a3d5727:g:dq8AAOSwKJlbLk-z
I found a really nice guide that I could probably use to make my own cable, but when considering my lack of electrical skills and ordering parts, if the cable above is suitable I will just order that.
http://forum.arcadecontrols.com/index.php?topic=160869.0
Would a DVI to VGA adapter like this be enough, or should I be looking out for something specific?
https://www.ebay.co.uk/itm/353409441486?hash=item5248d81ece:g:tGwAAOSwXBxgQTsc
Other alternative is to take the 6450 512mb back and swap it for a 5450 1gb card that has a VGA port on the board (not ribbon), costs bit more but I wouldn't need an adapter for the DVI port.
Zebidee:
That cable you linked to looks like it will do the job - I'd also bet it is built with gambaman's Ultimate PIC or similar (that you also linked to) to get 12v from 5v USB port and do composite sync.
That DVI-I adapter looks good. The analogue signals are carried via the group of pins at one end - the large flat "tongue" is for ground, with 2 pins above and 2 pins below for RGB+sync.
Try to avoid using the HD5450 if possible. Getting CRT-emulator to work with them is difficult. Ironically, you need to use a DVI-VGA adapter and some arcane tricks to make it work properly (outputting 15khz via the VGA head as primary).