iMac 400 Questions (firmware update, RAM speeds)

[coffey7]

I have a Imac 400(running panther 10.3.5) that came with 1 stick of apple ram(64mb) marked PC100-222-620. The other stick that came with it was a kingston 512 marked KTA-IMAC100/512.
Will my Infineon 512 stick that is marked PC133-333-520 work well with the slower ram? I was told different things about this. When using both 512 sticks everything seemed ok. I just don't want to mess things up.
Also. Do I need to do a firmware update when running Panther on this imac400? I did try to do the update but I was getting an error message about not being able to find the OS9 folder. Thanks for any help.

[Eidorian]

1. It'll work.
2. You're already running Panther so the firmware is up to date.

[coffey7]

1. It'll work.
2. You're already running Panther so the firmware is up to date.

Yep I checked the firmware and it is the latest.

So the ram will be ok. Cool.

How about a 120gb harddrive will that work?

[Eidorian]

A 120 GB hard drive will work. The problem is opening up the iMac for it.

[coffey7]

A 120 GB hard drive will work. The problem is opening up the iMac for it.

I already had everything apart and that will not be a problem. I am a master apple tech(LOL).