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Home Forums Just acquired a Macintosh SE. Some questions I have... — #31 Just acquired a Macintosh SE. Some questions I have... — #31
Post #31 by Apache Thunder
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Ok. I've removed the drive and took a closer look at it. I've disconnected the circuit board and noticed something:

hd_dust.jpg

There is some "debris" near the center axle area that contacts a copper fin on the circuit board. Here's a photo of the underside of the circuit board:

hd_bottom _IC.jpg

And here's a photo of the top IC. If it has capacitors, it doesn't appear to be using the type prone to leaking:

hd_top_IC.jpg

My main concern is that debris on the center axle. (the whole "disc" area rotates, so it rotates with the platters.

Maybe it's a lubrication issue?

EDIT:

Ok I powered it up with an external power adapter (It came with my IDE/SATA to USB adapter. So it was useful in this case. :D ).

I noticed the LED flashed 8 times. I found this awhile back:

http://stason.org/TULARC/pc/hard-drives-hdd/seagate/ST157N-0-49MB-3-5-HH-SCSI1-SE.html

Flashes -Failures codes

1 | Microprocessor/Internal Memory Test

2 | Microprocessor ROM Checksum Test

3 |Controller Chip Test

4 |Controller Program RAM Test

5 |Data Buffer RAM Test

6 |Spindle Speed Test

...| If the drive is unable to reach and maintain correct

...| spindle speed

8 |Read Operating System Microcode From Drive

...| If the controller is unable to read the operating system

...| from the drive

9 |Read Operating System Microcode From Drive

...| If the controller reads the operating system records,

...| but determines that they are invalid.

So the drive is telling me the error for number 8. "Read Operating System Microcode From Drive - If the controller is unable to read the operating system from the drive"

Not sure what this means exactly. Perhaps a LFF could fix it. Won't know till I get a mouse though. :(

That rules out motor sticking though as it would have given me error 6 instead if the spindle couldn't get up to speed. (and in that instance I would believe it would power down on that error)

Edit2: Powered it up a second time and it doesn't display a blinking LED code that time. Seems hit and miss. (mac still didn't boot from it though). I left it on and will see what Lido says this time. :p

mp.ls