How do I know which PS3 console can be delidded and which ones can not ?

[L3gi0n0fh311]

I have a bunch of slims and a bunch of super slims...
My understanding:
PS3 Slim:

• The RSX on ALL PS3 Slims is deliddable.
• The CELL is deliddable with some models and NOT deliddable with others.

PS3 Super Slims:

• The RSX does not have an IHS on ALL models.
• The CELL is soldered to the IHS on ALL models. So it is not deliddable.

(1) Is my understanding correct ?
(2) How do I know which Slims have a deliddable CELL ?

 

[Joe-poe]

No version of the PS3s, in any of it's variants have soldered IHS.