Thanks to the correct screwdriver as per Ronni’s advice I now have 24GB RAM 
installed.  A breeze finally but some headache along the way.  Thanks to all 
for advice and tips.  No doubt now, knowing the way my mind works, I will be 
looking to max out to 32GB!  
Severin

On 25 Jun 2014, at 10:49 pm, Severin Crisp <[email protected]> wrote:

> Thanks Daniel, Ronni and Neil for thoughts on the solution to a SIMPLE 
> problem.   The right screwdriver helps!  but I note Daniel’s comment.  
> Tomorrow is another day and I will review what I have n hand (lots on offer ) 
> but maybe pay you a visit Neil.  Such a bind unplugging and getting it lying 
> flat so I can access the little panel.  
> Severin
> 
>    
> On 25 Jun 2014, at 6:11 pm, Neil Houghton <[email protected]> wrote:
> 
>> As I mentioned in my previous email, I have the correct screwdriver/bit 
>> amongst my collection & I’m just round the corner from Severin.
>> 
>> So, Severin, if you want to borrow it/them just give me a call & pop round 
>> ;o)
>> 
>> I remember when I did mine, one screw was more difficult than the others – 
>> but keeping a good axial pressure on it whilst turning kept the head engaged 
>> and once moving it came out easily.
>> 
>> The screw heads ARE small – so it is important that the driver is well 
>> engaged in the head, and kept engaged with good axial pressure, to prevent 
>> damage to the slot profile.
>> 
>> 
>> Cheers
>> 
>> 
>> 
>> 
>> Neil
>> -- 
>> Neil R. Houghton
>> Albany, Western Australia
>> Tel: +61 8 9841 6063
>> Email: [email protected]
>> 
>> 
>> 
>> on 25/6/14 17:49, Ronda Brown at [email protected] wrote:
>> 
>>> I understand Severin. 
>>> Let's hope you find the correct screwdriver or I could send/lend one down 
>>> to you.
>>> 
>>> Sent from Ronni's iPad4
>>> 
>>> 
>>> On 25 Jun 2014, at 5:17 pm, Severin Crisp <[email protected]> wrote:
>>> 
>>>> Good advice Ronni but I believe my problem has been unsuitable screwdriver 
>>>> rather than seriously stuck screws.  The physical problem to take the iMac 
>>>> in to T4 is off putting!
>>>> Severin
>>>> 
>>>> On 25 Jun 2014, at 5:10 pm, Ronda Brown <[email protected]> wrote:
>>>> 
>>>>> Yes that is correct... It is now 14 pieces. I've had my set for probably 
>>>>> a good 15+ years ;-)
>>>>> 
>>>>> If you are having trouble loosening the three screws, sometimes the space 
>>>>> between the internal threads and the screw threads capture moisture and 
>>>>> oxidation occurs. If this is the case attempting to remove the screws 
>>>>> will possibly strip the head. If this happens you will have to replace 
>>>>> the screws. 
>>>>> If you are finding the screws difficult to loosen I would take the iMac 
>>>>> to an Apple Authorised technician and let them loosen them. They have 
>>>>> more experience and if the screws are ruined they will be able to replace 
>>>>> them.
>>>>> 
>>>>> Cheers,
>>>>> Ronni
>>>>> Sent from Ronni's iPad4
>>>>> 
>>>>> On 25 Jun 2014, at 4:58 pm, Severin Crisp <[email protected]> wrote:
>>>>> 
>>>>>> I see that that Newer Tech kit is now 14 pieces
>>>>>> Severin
>>>>>> 
>>>>>> On 25 Jun 2014, at 4:38 pm, Ronni Brown <[email protected]> wrote:
>>>>>> 
>>>>>>> Hi Severin,
>>>>>>> 
>>>>>>> Remember that the screws are captive - they only loosen, they remain 
>>>>>>> with the cover - so it won't be noticeable that they are unscrewed 
>>>>>>> until the cover comes off.
>>>>>>> 
>>>>>>> I purchased many years ago and still use today, a Newer Technology 
>>>>>>> 11-piece Portable Toolkit which includes:
>>>>>>> • Three Torx screwdrivers (T6, T8, and T10)
>>>>>>> • Two flathead screwdrivers (1.8mm and 3.0mm)
>>>>>>> • Two Phillips screwdrivers (#00 and #2)
>>>>>>> • Two nylon spudgers—otherwise known as pry tools, useful for opening 
>>>>>>> iPods or Mac minis or removing the top case from an older MacBook Pro.
>>>>>>> • A set of large tweezers, perfect for fishing out the screw you 
>>>>>>> accidentally dropped into the innards of your laptop
>>>>>>> • A scissor clamp for holding cables and other thin objects in place.
>>>>>>> 
>>>>>>> I would be lost without this little set of computer tools.
>>>>>>> 
>>>>>>> Cheers,
>>>>>>> Ronni
>>>>>>> 
>>>>>>> On 25 Jun 2014, at 4:17 pm, Severin Crisp <[email protected]> 
>>>>>>> wrote:
>>>>>>> 
>>>>>>>> Thanks, Ronni.  All my reading came up with Phillips but unspecified 
>>>>>>>> size.  I suspected they might have been torx but definitely not.  I 
>>>>>>>> will go back to my selection and try again.  
>>>>>>>> Best wishes and thanks
>>>>>>>> Severin
>>>>>>>> 
>>>>>>>> On 25 Jun 2014, at 3:45 pm, Ronda Brown <[email protected]> wrote:
>>>>>>>> 
>>>>>>>>> Hi Severin,
>>>>>>>>> 
>>>>>>>>> If your iMac is  21.5" Model A1311 or 27" A1312  you can use a 
>>>>>>>>> Phillips #2 screwdriver to loosen the three captive screws on the 
>>>>>>>>> memory access door.
>>>>>>>>> TURN them COUNTERCLOCKWISE
>>>>>>>>> Then remove the memory access door and set it aside.
>>>>>>>>> 
>>>>>>>>> Cheers,
>>>>>>>>> Ronni
>>>>>>>>> 
>>>>>>>>> Sent from Ronni's iPad4
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On 25 Jun 2014, at 2:08 pm, Severin Crisp <[email protected]> 
>>>>>>>>> wrote:
>>>>>>>>> 
>> I have a Late 2011 iMac 12,1 and have purchased modules to go from 8GB to 
>> 24GB ( thanks Daniel).  Today I duly shut down, unplugged everything from 
>> the back (including a struggle as always with the ethernet plug) and laid 
>> the Mac out flat on a towel.  Various of the online “how tos” list the 
>> simple procedure starting with a Phillips screwdriver to undo the three 
>> small screws that secure the cover.  But not so easy.  I have several 
>> Phillips screwdrivers which look as if they are correct but do not catch.  
>> Closer inspection shows that the screwheads have only a shallow indent so a 
>> normal Phillips, which has a bit of an extended point, does not apparently 
>> go in far enough to engage.  Not wishing to damage screwheads I put it all 
>> back again and still have 2 x 8GB sitting on the desk looking at me 
>> expectantly.  Has anyone else tried to follow this seemingly straightforward 
>> operation and had, or not had, similar problems?  Are they really Phillips 
>> screws or something that just looks like them?  I have had similar 
>> situations in the past.  
>> Advice please!  
>> Severin Crisp
>> 
>> ____________________________________________________
>> 
>>             Assoc Prof R Severin Crisp, FAIP, FIP, CPhys
>> 15 Thomas St, Mount Clarence, Albany, 6330, Western Australia
>>                   ph (08) 9842 1950 ( Int'l +61 8 9842 1950)
>>                            mail to: [email protected]
>> 
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> 
> ____________________________________________________
> 
>              Assoc Prof R Severin Crisp, FAIP, FIP, CPhys
> 15 Thomas St, Mount Clarence, Albany, 6330, Western Australia
>                   ph (08) 9842 1950 ( Int'l +61 8 9842 1950)
>                            mail to: [email protected]
> ____________________________________________________
> 
> 
> 
> -- The WA Macintosh User Group Mailing List --
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____________________________________________________

             Assoc Prof R Severin Crisp, FAIP, FIP, CPhys
15 Thomas St, Mount Clarence, Albany, 6330, Western Australia
                  ph (08) 9842 1950 ( Int'l +61 8 9842 1950)
                           mail to: [email protected]
____________________________________________________



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