Question on old RAM

[Oldsmobile_Mike]

I would always use the fastest possible, within reason.  Maybe it's more of a "feel good" thing, than anything else.  But if you system is heavily accelerated it might help.  

Look for the last digit on the chips, something like a -80, or -8, that might help you.  Or, yeah.  Just post a picture.  

[Oldsmobile_Mike]

I did a search on ebay; couldn't find any 50ns ... that said, it would be useless to buy 50ns for a GVP HD8+ given the limit of 120ns. Is this right?

You still have that backwards.  Lower numbers = faster, higher numbers = slower.  120ns is the slowest you can go, but it would never hurt to go faster.  I have 60ns in my GVP sidecar and it works great.  Think I paid about $7 each for a pair of newly manufactured (probably remanufactured - old chips on new boards) 4MB 60ns 30-pin SIMM's a few years ago, and they work great.  

[Oldsmobile_Mike]

For a GVP sidecar you want something like this:

http://www.ebay.com/itm/4x-4MB-Samsung-30pin-tin-non-parity-SIMM-memory-low-profile-tested-Apple-Amiga-/182081428205

Doesn't necessarily need to be this listing, but you get the idea.  30-pin, 60ns.  I like the ones with fewer chips (less parts to fail, less voltage/power requirements, blahblah, etc.).

[Oldsmobile_Mike]

Here's two that should work for the princely sum of $12 USD, with free shipping.  

http://www.ebay.com/itm/2x-4MB-Samsung-30pin-tin-parity-SIMM-memory-low-profile-tested-RAM-386-486-PC-/172150483700

[Oldsmobile_Mike]

I can tell you some parts don’t like that 3 chip memory I remember some stuff not liking it, it just depends.

Actually it looks like mine are only 2 chips, based on this picture I took a few years ago.  Obviously the label is covering them, but looks like only two would fit under there.  What can I say, haven't cracked the old gal open in a while.  

Also, we gotta get you guys some better cameras.  It never ceases to amuse me how often Amiga users (who I'd consider to be "pretty geeky") don't have a whole rack full of good camera gear (another "geeky" hobby), haha.