No relief for unbearably slow ssd on 2010
I have not seen an answer that matched my issue.
Macbook 2010 refurbed by me. I have added the same ADATA 240 OR 480gig to, probably, 100 Macbook Pro units. From 2008 to 2012. I have never heard or seen an issue like this. Hopefully, one of you have.
Original drive 320 Apple drive, rotational, works fine but speeds are always better in ssd.
Installed Adata 240gig
Started up with High Sierra boot usb
Run disk utility to format to journaled,run disk First Aid to check for errors. All good.
Continue to install. I have used this USB several times. It is not the USB that's in error.
Starts to build system on SSD. Normally, a 1 hour job with usb and gig speed hard wire. This build decides to take 7.5 hours. Not good.
Order new drive cable, replace SSD. Same speed, same 7-9 hour build.
Put rotational drive back in. All good, expected speed. I've gone through 2 cables, 2 drives, speed tests with BM. Something just isn't right with this unit and ANY SSD
Yes, after system installed, Trim enabled. No difference after 4 days and no apps installed.
Insert road block, no clue what could be causing this? Never, ever have I experienced this type of behavior only with an SSD. It is set to startup drive. All of the suggestions I could read here, have been tried to no avail.
Startup disk-yes. Trim can't enable without system on disk, but yes. Cables tried 3. Drives-tried 2.
Firmware? Connector is fine on logic or rotational would not work. It is a Sata III drive to a SATA II connection, but never experienced this problem on the other 99 I have done.
Totally lost, and that's hard to do fir me. I never give up reading and trying.
Thanks for any help.
Is this a good question?