fahmi from Riyadh wrote:
thank you rakufmann87 for the feed back and detailed advice , it was great , yet i need to ask you according to Apple &Crucial the i-mac model I'm talking about can be upgraded only to 4Gb of Ram ? can you advice about that .
and another question if i may can install the SL using the USB ,not with the DVD ?
thank you again
NO.
That is incorrect about the RAM.
Also, your iMac model 7,1 is a 2007 iMac. Not a 2008 model
2007 & 2008 iMacs max out their RAM at 6 GBs
OWC (aka OtherWorldComputing, aka macsales.com) have the 6 GB RAM kit that your iMac needs
https://eshop.macsales.com/item/Other%20World%20Computing/5300DDR2S6GP/
OWC has international shipping to many countries, but you will have to contact them. either by email or phone to see if they ship to Riyadh or ship from another OWC location to Riyadh.
The reason for installing the maximum 6 GB of RAM is that 4 GBs of RAM will not be enough RAM to run versions of OS X newer than OS X 10.6 Snow Leopard.
Newer versions of OS X that are newer than Snow Leopard require more than 4 GBs of RAM to run more normal or nominally.
As far as getting OS X 10.6 Snow Leopard onto your iMac, OS X Snow Leopard is ONLY available on OEM Apple DVD install discs.
You either call Apple direct to purchase these discs OR order directly from the Apple website.
There is NO USB or downloadable version of OS X Snow Leopard. There never was.
You must purchase the retail Snow Leopard install discs that are white with an image of a Snow Leopard on the box and on the discs.
Good Luck!