update Mid 2007 iMac 4GB RAM to Yosemite?

patent10021

macrumors 68030
Original poster
Apr 23, 2004
2,907
394
I heard it's not recommend to update the Mid 2007 iMac to Yosemite as it requires too much RAM.

Right now this iMac is running 10.7.5. Should I upgrade only to Mavs?
 

patent10021

macrumors 68030
Original poster
Apr 23, 2004
2,907
394
Hi. Yup I already know it's compatible. But I heard that this iMac is brutally slow on Yosemite so I was hoping to get this confirmed. What do you think if I just upgrade to Mavs?
 

keysofanxiety

macrumors G3
Nov 23, 2011
9,471
24,220
I heard it's not recommend to update the Mid 2007 iMac to Yosemite as it requires too much RAM.

Right now this iMac is running 10.7.5. Should I upgrade only to Mavs?
Install El Cap instead (10.11.6). Also it would be best to swap the HDD for an SSD if you're able to.
 

elf69

macrumors 68020
Jun 2, 2016
2,316
482
Cornwall UK
I have a 2007 20" imac (aluminium, not white)

2.0GHz core2duo with 4GB ram.

I run el capitan.

rarely get the beachball and works well.
I am going to upgrade to 6GB and SSD soon.
 

patent10021

macrumors 68030
Original poster
Apr 23, 2004
2,907
394
Install El Cap instead (10.11.6). Also it would be best to swap the HDD for an SSD if you're able to.
10.11.6 specifically? Not just the GM for example?

Also I know El Cap works but many people say it's slower than Lion/Mavs on these 2007 iMacs. Do you think that's true? Because I don't want El Cap to just work. I would like to see an improvement in speed or at least the same speed.
 

keysofanxiety

macrumors G3
Nov 23, 2011
9,471
24,220
10.11.6 specifically? Not just the GM for example?

Also I know El Cap works but many people say it's slower than Lion/Mavs on these 2007 iMacs. Do you think that's true? Because I don't want El Cap to just work. I would like to see an improvement in speed or at least the same speed.
Yeah, 10.11.6 is the latest build of El Cap. It runs better than Yosemite in my experience.

Lion was an absolute RAM-hungry dog and not much is supported on it anyway. Mavs is stable and a solid OS but has the same issue with compatibility these days. Honestly, I think El Cap would run OK. My housemate has your model of iMac and it seems to be fine.

Worth remembering that after the update, the system will be quite slow while it's indexing, so don't be immediately disheartened; give it a few days. Worst case scenario, throw in an SSD and the performance will be vastly improved.
 

patent10021

macrumors 68030
Original poster
Apr 23, 2004
2,907
394
Thanks. Can't throw in an SSD since it's not my machine but I'll definitely recommend it to my friend. I put in an SSD in my mum's 2007 MB and the start up is pretty much just as fast as my 2015 MBPr lol.