Be careful swapping memory on that board. I hated those JP20 boards and sold every Vortex that had them. I don't know if they did the Orions like the Vortex, but on the Vortex that JP20 has hot glue applied on the memory stick. Brilliant. As the machine sits there and cooks the glue seems to get way down in those pins and if you looked at it wrong those pins stop making contact with the memory. A nightmare to fix. Many weren't fixed. Only other trouble I remember with those are bad caps everywhere and loss of audio due to failing caps as well. JP30 seem better, for now at least.
JVL's are a different animal. I/O board problems can shut you down, low batteries on I/O, low battery on main board, etc. I've even had to install itouch9 software with an itouch10 key, then re-install the itouch10(I think I remember that right) to fix a Vortex once.
Get more cooling on there as lilshawn said.
Not sure how far you can update. As stated earlier you can probably go to the 11 with just a few tweaks.
For a real treat call JVL tech support.
Do it with a cheap flip phone as you'll be throwing it against the wall in no time.