on 3/2/01 10:28 AM, Tom Rymes at [EMAIL PROTECTED] wrote:
> <snip PRAM battery discussion>
>
>> You'd be surprised what weird things can happen!! I just spent TWO WEEKS
>> tracking down a problem where my PowerTowerPro 225 (w/ OS 8.6) would freeze
>> during the boot sequence, but ONLY IF I DID A RESTART!!! Worked just peachy
>> if I did a shut down. Been using Macs since 1985 and never had a problem
>> stump me like this. Finally went on MacFixIt forum after exhausting all
>> possibilities I could think of. (Even did a motherboard CUDA button reset
>> to make darn sure there was nothing corrupt in PRAM. Reseated all
>> connections internally. Did clean reinstalls. The works.) It turns out
>> that, in order to have the CD drive in this orphaned machine work, you need
>> to do a ResEdit hack to the Apple driver. Virtually everyone has no
>> problem. But... What was apparently happening was that some memory
>> somewhere was getting corrupted, but this wouldn't manifest itself until
>> after the restart. So, try doing a COLD (from no power) reboot with
>> extensions OFF, then try the Finder restart. Maybe, just maybe, it will
>> work.
>
> Eric, I've got a PTPro 225, too with a hacked Apple driver. It does the
> same thing. If I restart, it will hang on the MacOS splash screen before
> the extensions start loading. My CD-R drive's light will be on steady.
>
> Can you explain what you did to fix this? just use a different driver?
>
Yup. Using a new driver is all I could come up with. Conflict Catcher nosed
right in on the hacked Apple CD/DVD Driver as the single extension causing
the problem. It was very unambiguous once I realized it could be an
extension problem. The real problem was just making the realization that
RESTART doesn't flush all memory locations and so something could hose a
location that's only needed at startup time. Given how early in the startup
sequence the freeze happened, and the fact that I could restart WITH SHIFT
KEY DOWN and still have it happen, led me astray for quite a while.
BTW, you know that little control strip that lets you pick the tracks, etc.
on a CD that's Autoplaying? It doesn't like to work with CD/DVD Speedtools.
[don't worry about being too off topic... *I* don't think discussing
troubleshooting technique is that far off topic, since you never know when
someone might need an analogous solution.]
- Eric.
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