Ive been tinkering around getting my Golfing Greats arcade pcb connected up and working. It all seems to be working fine (except the odd minor gfx glitch). There's quite a bit of 74 series logic on the board and some of it is running a little hot, however there are 4 ram chips (mcm2018an45) which are running nearly too hot to touch. I'm just wondering if anybody here knows if that's normal.
At the moment I stuck a couple of small heatsinks on with some arctic silver but they still seem to be running very hot.
In my experience no, RAM chips especially never get that warm, but I'm not familiar with the game. If you're unable to find easy answers you could stick a thermometer on the chips, get a reading, and then check the chips' datasheet.
Ram chips do get warm sometimes, although they tend to only get hot if they're overclocked or something.
You could always just slap heatsyncs on those puppies :D
Thanks for the tip. I decided to stick on a heatsink taken from a busted ZX Spectrum and fit it across all 4 chips using some thermal compound and a little epoxy to keep it in place. Still gets quite hot but takes a lot longer to do so. The board does seem to be quite a hot running one. Like I mentioned earlier theres a lot of logic on the borad which gets rather hot also and theres a Z80 and a 68K which also get rather warm. After a half hour or so theres that much heat coming from the board that you could almost mistake the board for a mini electric radiator. ^_^