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muddymusic View Drop Down
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Points: 14088 		Post Options Post Options   Thanks (0) Thanks(0)   Quote muddymusic Quote  Post ReplyReply Direct Link To This Post Posted: 31 January 2015 at 9:01am
I'm liking this. It does all the things I'd want from a mame setup. I've always been put off by the mass of lists to configure, lists thousands of games long and flashy videos and animations. Just a simple short list of decent games that all play at the correct speed with no screen tearing at the correct resolutions. It's not complicated, yet no multi board or mame setup seems to be able to manage it!

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2huwman View Drop Down
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Originally posted by FrancoB FrancoB wrote:

 
I've been looking at the power side of things and I'm a little concerned with running it all from the JAMMA edge/PSU. I'm not sure which Pico PSU you're using but looking at the specs they need 2A minimum. Im not sure how much power you're using but even at 40watts you're looking at over 4A, 80watts would draw over 8A. Looking at a few JAMMA switchers on the net they seem to range from about 2-5A on the 12V line.

You might want to measure how many amps you're pulling. You can do it with a multimeter if you have one.

It might be a better idea to use a separate 12v PSU for the Pico, although if you're doing that then it might be cheaper to use a small ATX PSU. It's a shame to have to use an external PSU as I would love to run it all from the JAMMA edge but I'm just a bit worried about damaging the JAMMA PSU. Just had a quick look at some of the XXXX-in-one JAMMA systems which I guess is similar to what we're doing here and they look to be using ATX PSUs.


Yeah, that's what I was worried about too. I'll check how many amps its pulling. I tried it on an old jamma PSU first and it went fine for an hour, so I figured it was OK. The one on my cab says 4a on the 12v, so hopefully is enough. The one I tested it on was 2.5 though. But an external power brick is cheap and easy, so not a big problem. 

Since it's mini ITX, then the sky's the limit as far as processing power. Think they even do an i7! As far as the GPU goes, i just got the cheapest compatible one (X600) with passive cooling, assuming that would be low power. MAME doesnt really use the GPU anyway, so I didnt think I would need anything more. But on the other hand, the other emulators on groovyarcade for the saturn, psx, n64 etc may use more GPU, so that could be another way of upping compatibility with 3d games. And they all use switchres too, so i assume you'd get perfect resolutions and framerates (as long as you've got enough processing power).

I was actually thinking of going lower power. Dual core atoms at 1.6 ghz may be enough for CPS 2 level stuff. Also no fan, so no sound or moving parts at all! But I agree it would be great to have a list of various specs/power consumption/compatible games etc so people could pick and choose.
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FrancoB View Drop Down
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Originally posted by muddymusic muddymusic wrote:

I'm liking this. It does all the things I'd want from a mame setup. I've always been put off by the mass of lists to configure, lists thousands of games long and flashy videos and animations. Just a simple short list of decent games that all play at the correct speed with no screen tearing at the correct resolutions. It's not complicated, yet no multi board or mame setup seems to be able to manage it!


My thoughts exactly Olly Smile


Originally posted by 2huwman 2huwman wrote:

Yeah, that's what I was worried about too. I'll check how many amps its pulling. I tried it on an old jamma PSU first and it went fine for an hour, so I figured it was OK. The one on my cab says 4a on the 12v, so hopefully is enough. The one I tested it on was 2.5 though. But an external power brick is cheap and easy, so not a big problem. 

Since it's mini ITX, then the sky's the limit as far as processing power. Think they even do an i7! As far as the GPU goes, i just got the cheapest compatible one (X600) with passive cooling, assuming that would be low power. MAME doesnt really use the GPU anyway, so I didnt think I would need anything more. But on the other hand, the other emulators on groovyarcade for the saturn, psx, n64 etc may use more GPU, so that could be another way of upping compatibility with 3d games. And they all use switchres too, so i assume you'd get perfect resolutions and framerates (as long as you've got enough processing power).

I was actually thinking of going lower power. Dual core atoms at 1.6 ghz may be enough for CPS 2 level stuff. Also no fan, so no sound or moving parts at all! But I agree it would be great to have a list of various specs/power consumption/compatible games etc so people could pick and choose.


Yeah please check to see how much power it's pulling, I would be interested to know.

So will this groovy arcade work with pretty much any PC with a compatible video card? I'm just wondering what to look for when looking for components.

In regards to video cards, is there a list somewhere of which ones/series are supported?
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 Post Options Post Options   Thanks (0) Thanks(0)   Quote BigBadWolf Quote  Post ReplyReply Direct Link To This Post Posted: 31 January 2015 at 9:48am
Have a look in the "convert to mane in 3 steps" thread Franco, there a list of supported cards in the first post.
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Initial shopping list (I'll update when I've got more time). I've linked to the parts and sellers I used, but you can use others obviously:

  1. a Mini ITX (MITX) motherboard, CPU, and ram. I got a second hand combo with everything for £25 from this seller http://www.ebay.co.uk/usr/pcbitzuk?_trksid=p2047675.l2559 (mine was a bit damaged but still functional, so was cheaper than the ones they have now which are £35 - just search their ebay shop for AOpen i45GMt-HR to find mine.   The key thing about the mobo is that it needs to have a pcie x16 slot, so that you can use a cheap and easily available graphics card. I thought a core2duo at 2.2ghz would be a safe starting place for the processor.
  2. a pico PSU http://www.ebay.co.uk/itm/201090012185?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
  3. a radeon card thats compatible with the crtemudrivers (from this list: http://geedorah.com/eiusdemmodi/forum/viewtopic.php?id=65  I got this one: http://www.ebay.co.uk/itm/310546592753?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
  4. a 12v power brick (possibly optional, depending on your JAMMA PSU! If you want to power it from your JAMMA PSU make sure it can handle the load - I'm not responsible for breaking your stuff!) I got the 10a version: http://www.ebay.co.uk/itm/AC-100-240V-DC-12V-2A-4A-6A-10A-LED-CCTV-Power-Supply-Adapter-Transformer-Plug-/331459574818? 
  5. J-PAC - http://www.ultimarc.com/jpac.html They're a bit pricey new, so try and get one second hand if possible. There are obviously other ways of connecting the PC to the cab, but this is the easiest and protects monitors from being fed resolutions they can't handle. More technologically capable people will be able to make something that does what a Jpac does, but I'm not that guy!
  6. a dvi to vga cable to link the graphics card to the jpac. 
  7. the latest GroovyArcade beta https://e283dc88d509e5765cdd425ef94c1edb72be4a8f.googledrive.com/host/0B0NB2HYUHHktUFZXTWJfbHpzUlE/GroovyArcade-Arch2014.12.25-x86_64.iso burn this to a cd and use it to install groovy arcade to a usb memory stick. Youll need an external USB cd drive for this step. I think you can also install from USB instead of CD, but i didn't do that.
  8. USB drives one small (4gb seems to work for the install), and one large for your roms. You could probably partition a big drive and have the install and roms on it, but i didnt want the hassle.
  9. An audio amp if your cab doesnt have one, e.g. http://www.ebay.co.uk/itm/281557735300?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
  10. pcb feet, poles, and cable ties to elevate the JPAC and keep everything together and tidy(ish!)
So as you'll gather, it's just a mini ITX pc with a Jpac & audio amp strapped to it. All credit to the creators of GroovyArcade (Calamity et al).

My next one's going to be Atom - based, so I'll see what that does to the power/performance ratio!

Please list alternative components if you come up with other or better solutions!
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I'm definitely interested in this project. A MAME 'board' with vsync'd display and reduced input lag, that just plugs into the edge connector without further modification sounds great! Smile
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2huwman View Drop Down
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Originally posted by big10p big10p wrote:

I'm definitely interested in this project. A MAME 'board' with vsync'd display and reduced input lag, that just plugs into the edge connector without further modification sounds great! Smile

yes, it's got to be doable. just need to find the right balance of power consumption to processing power. i figured MITX mobos were the way to go as theyre the smallest i could find with the PCIE slot. but there could easily be other options I havent thought of. possibly decasing a 12" laptop with dedicated radeon gpu?
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If power consumption's a problem, personally, I wouldn't mind fitting an ATX PSU in my cab in order to get a bit more processing power on board. I guess you're really looking for a solution that doesn't require this, though.
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Only special multi boards can do this! Surely revive Zanoni!
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Thanks for the list dude, most helpful.

Managed to pick up a cheap HD4890. Now to pick up the rest. Smile
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Thanks for the list. I'm going to have a go at this when I've finished my current project and have some spare cash. Thumbs Up
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Thanks from me too mate, this thread has been a great readSmile
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Points: 816 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 2huwman Quote  Post ReplyReply Direct Link To This Post Posted: 01 February 2015 at 4:49pm
You're welcome. I've been having a look at newer mitx boards and you can get some pretty powerful and low power consumption boards. Worth having a good look round before buying. I'll try a few out and let you know.
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Interesting update - I asked Calamity about GPU support for GroovyArcade, and apparently it will support any AMD/ATI card that is supported by the Linux open source drivers!


this really opens things up - AMD's AM1 platform, which integrates CPU and GPU in one chip and runs at 25w looks to be supported. Could be a very nice range of options for people!
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Originally posted by colinmac colinmac wrote:

Never mind a parts list, get making them ! Wink


I would buy one, if setup!
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Originally posted by Thefro9 Thefro9 wrote:

Originally posted by colinmac colinmac wrote:

Never mind a parts list, get making them ! Wink


I would buy one, if setup!


Cool-I'm on to version 2 now and will be basing it on a much newer platform, so should have significantly more processing power and only use about 25-30w. While I wait for the parts to arrive I'm going to be sorting out the ROM sets and artwork and getting the config files ready. I'll at least share all the non copyright stuff, and could build a few to order if all goes well!
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Originally posted by 2huwman 2huwman wrote:

Interesting update - I asked Calamity about GPU support for GroovyArcade, and apparently it will support any AMD/ATI card that is supported by the Linux open source drivers!


this really opens things up - AMD's AM1 platform, which integrates CPU and GPU in one chip and runs at 25w looks to be supported. Could be a very nice range of options for people!

I have no idea what this means but it sounds good Embarrassed

Was I a bit hasty in buying the HD4890?
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@Franco - I won't know that the integrated gpu will work until I actually try it, so may well need an external card of some sort anyway! If youre not bothered about power consumption it won't be an issue.
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Hi I would be interested in placing a order .please keep me informed off your progress
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Hi I would be interested in placing a order
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