(Topic ID: 175162)

RFM Boot Issue - Not Solved, Back Again - Motherboard

By maffewl

3 years ago

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  • 96 posts
  • 14 Pinsiders participating
  • Latest reply 3 years ago by RoyF
  • Topic is favorited by 2 Pinsiders


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#38 3 years ago
Quoted from maffewl:

As for removing the computer to test, I tried with and without the Prism Card. The computer monitor said "No signal".

For diagnostic purposes using the computer case out of the RFM, see if you have a buddy that has an OLD computer monitor. CGA, or perhaps EGA might work too. Not VGA or newer. I actually keep one of these stored away in case I should need it for RFM problem diagnosis, but haven't had to use it in many years.

#63 3 years ago

Not sure why your friend's P2K computer will drive an LCD monitor without an adapter, unless he has added a separate video card of some kind or is using a motherboard that is not one of the commonly found "from the Bally factory" motherboards. I can assure you that is NOT normal, it usually takes an adapter to be used with the stock P2K motherboard in order to drive an LCD monitor. What you are experiencing with your P2K computer failing to sync when connected directly to a LCD monitor is normal. If you want to test your P2K computer case outside of the machine, then you either need an old monitor (CGA, or perhaps an old EGA monitor would also sync up) as I stated earlier or you need a CGA to VGA adapter to be connected between the monitor port on the back of the computer case and the LCD monitor cable. I suppose you could try using an add in video card inserted in a free slot in the computer case and connect the LCD monitor to that, if you could get the BIOS to correctly recognize and use it (I've never tried that) and you remove the PRISM card. I have tested my P2K computer outside of the machine, and it wouldn't drive a LCD monitor directly but would sync to an old CGA monitor.

So, get yourself access to one of the converters or to an old monitor and then you can test your computer to see if you can get it to boot outside of the pinball machine.

#81 3 years ago
Quoted from maffewl:

Any thoughts on what to maybe check on the mainboard? What's weird to me is that when the Prism card is in it puts signal out, but when just trying to boot BIOS there's "No Signal". And as shown in the video in the first post, sometimes it will even boot to the game, and act "normal" when the Prism card is in. Any thoughts or am I SOL?

The only thing I can think of given your situation (and without knowing the specs on your friend's VGA monitor) is this possibility:

> Your friend may have a LCD monitor that can sync to the signal his motherboard is sending out. If so that's great as most won't.
> Your motherboard may have lost all of it's BIOS settings when you removed the battery and now be on default settings. Perhaps without the PRISM card installed the video signal being output from your motherboard is different than what your friend's motherboard is outputting.

I'd recommend setting your BIOS settings to be equivalent (perhaps not identical if your motherboard models aren't quite identical) to the settings on your friend's motherboard, especially anything related to the video. Of course the barrier to doing that is you need to be able to boot your computer with a monitor that will sync to it!

Ok, here is something else I've never tried. Put your computer case back into your RFM and attach all cables. The PRISM card should be installed, because you indicate that is the only way you get any signal on your monitor, and your RFM monitor cable should be connected to the computer. Also plug in a keyboard to the back of the computer case. What you want to do is to try to enter the BIOS menu during computer boot by repeatedly pressing the appropriate "BIOS boot menu" key on the keyboard during the initial PC boot sequence, just as you would do when entering the BIOS setup menu on any other computer. Might take you a few tries to determine if it is the DEL key, the INS key, or one of the F keys (F1, F2 and F12 the most likely suspects for the F keys). I'm not sure if you can actually get to the BIOS menu in this way as perhaps the PRISM ROMS begin to get loaded too quickly, but it would be an easy thing to try. If you can get to the BIOS boot menu this way, then enter the menu and change the settings to be equivalent to your friend's BIOS settings. Yes, it will be a bit of a challenge to read your monitor display in the BIOS setting menu because it will be "mirrored" by your P2K glass - if you can't decipher it that way then bend down and look up at the monitor instead.

Let us know if you can boot to BIOS this way.

#96 3 years ago

When you get it to boot to the BIOS screen you might as well press DEL and enter setup and input settings. You'll need a keyboard for that though. I doubt it will fix the other problems you are experiencing, but couldn't hurt.

I agree, get your motherboard professionally serviced so you can move on and play your game.

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