Knackered RAM

[SnapMonkey]

Basically, I ordered 4 x 4Gb RAM upgrade for my late 2009 iMac from Scan.

Link : http://www.scan.co.uk/products/8gb-...0-(1066)-non-ecc-unbuffered-cas-7-7-7-20-150v

Apple Specs : http://support.apple.com/kb/SP576

Corsair : http://www.corsair.com/us/memory/ma...-ddr3-sodimm-memory-kit-cmsa8gx3m2a106c7.html

Arrived today, fitted, beeps and won't boot. Refitted, same, won't boot. After 30minutes of faffing and trying different combinations of the 4 chips, I tried them individually and no boot on any occasion. Refitted original 4Gb RAM, boots first time, works fine (on it now).

Rang Scan, they are arranging collection and test. Will take around 3 weeks to confirm whether is dead, but the advisor said "it was unlikely all 4 are dead." My thoughts precisely, but it seems to be true.

Any one else had a similar experience, or is it just bad luck?

 

[Addicted]

Can you not make a disc with memtest on?

It will be one of the sticks, so plug in two at a time, and switch around until you find the dead one.

 

[SnapMonkey]

I tried them individually, all failed to boot.

Memtest?

 

[Tom]

The following table lists the new tones and their meaning:

Tone(s)	Description
1 tone, a 5-second pause, repeat	No RAM installed
3 successive tones, a 5-second pause, 3 successive tones	RAM does not pass data integrity check
1 long tone when holding down the power button	Firmware upgrade in process. See About firmware updates for Intel-based Macs for more details.
3 long tones, 3 short tones, 3 long tones	Firmware restoration from CD in process. See About the Firmware Restoration CD (Intel-based Macs) for more details.

 

[SnapMonkey]

Thanks for that. I was getting 2nd option, Ram doesn't pass data integrity.

Does this mean its incompatible, broken, other?

 

[Tom]

Yup.

 

[SnapMonkey]

Edit. Retried, now giving 9 beeps, 3 short, 3 long, 3 short, still no boot.