I see my Mac Pro runs sluggish and I see a lot of beachballs. I also see the following come up in the memory report. Do I replace the stick or get a new pair?
Size: 4 GB
Type: DDR2 FB-DIMM
DIMM Riser A/DIMM 1:
Size: 4 GB
Type: DDR2 FB-DIMM
Speed: 800 MHz
Status: ECC Errors
ECC Correctable Error
Manufacturer: 0x802C
P
iPhone 6 Plus, iOS 8.3
That typically mean the RAM module is failing. The memory is ECC (error correcting code) and many erros can and are corrected so computer operation is not affected.
You can try reseating the module but frequently the problem returns.
The FB-DIMMs in the 2006-2008 Mac Pros run hot and typically fail with time
I noticed this a few months back, re seated and it worked for a while. If I re seat and get it to work am I wrong in thinking this would effect the computer performance?
R
When there are too many errors and they can't be corrected that is when yo have problems. You will frequently get a kernel panic.
Also when they fail and failure is detected during the normal bootup RAM test, the FB-DIMM pair will be listed as empty
If the failing modules have Vendor stickers that indicate they are aftermarket, most have a Lifetime Warranty, and you can return the PAIR to the Vendor for replacement. (their sticker is all the "proof of purchase" you need.)
If only the manufacturer stickers, (such as Hynix or Toshiba) now is a good time for an upgrade. If you can get all slots filled with pairs, the memory in these Macs switches to double-wide accesses for about a 17 percent memory speed improvement.
Mac Pro early 2008 Quadcore 2.66 ECC error
