Re: Mouseball comes to life, keyboard dies

2011-08-01 Thread Tom
Thanks for the help, everybody. As per your advice I'll keep the dead
keyboard a while, hoping it dries out eventually, and test it from
time to time. I bought a new one for $50, but it never hurts to have a
spare.

Tom

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Re: Topic: Removing Heat Sink from Sonnet G4 upgrade card

2011-08-01 Thread Geke
That's 71 degrees Centigrade, if I'm right.
That doesn't sound like too much to me.

Anyone can say something about what is a safe max temperature of CPUs?
Does it vary a lot among different models?

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Re: Topic: Removing Heat Sink from Sonnet G4 upgrade card

2011-08-01 Thread Doug McNutt
At 06:37 -0700 8/1/11, Geke wrote:
That's 71 degrees Centigrade, if I'm right.
That doesn't sound like too much to me.

Anyone can say something about what is a safe max temperature of CPUs?
Does it vary a lot among different models?

The absolute maximum temperature for a PN junction is about 205 C.  At that 
point basic diffusion of the P type and N type doping atoms becomes serious.

205 C is also the soldering temperature for the lead free solders we now have 
to use. That makes for interesting problems melting the solder fast enough that 
you don't damage the insides of a chip.

Safe maximum depends on your safety standards but it's well below 205.  100 C 
is likely OK for everyone.
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Can old enclosures handle big new hard drives?

2011-08-01 Thread Tom
I'm thinking of buying some 2 or even 3 TB hard drives (video eats
lots of space) and putting them in some old enclosures that I have
lying around. These enclosures are OWC Mercury Elites whose original
hard drives, which were in the 250 - 320 GB range, have died over the
years. I'd guess these enclosures are 4 or 5 years old.

My question is, could an enclosure that originally held a 250 GB drive
handle a 2 or 3 TB?

Tom

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Re: Can old enclosures handle big new hard drives?

2011-08-01 Thread peterhaas

 My question is, could an enclosure that originally held a 250 GB drive
 handle a 2 or 3 TB?

Surely 500 GB or even 640 GB.

Possibly 1 or even 1.5 TB.

Probably not 2 or 3 TB.



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Re: Can old enclosures handle big new hard drives?

2011-08-01 Thread Alexander Gomes
Generally if they aren't already bigger then 1TB then no. I would say
up to 500gb more then likely, but not much more then that. Even if it
did recognize the hdd, it may not show all of the drive itself(as in
space).

On Aug 1, 10:26 pm, Tom tba...@nmia.com wrote:
 I'm thinking of buying some 2 or even 3 TB hard drives (video eats
 lots of space) and putting them in some old enclosures that I have
 lying around. These enclosures are OWC Mercury Elites whose original
 hard drives, which were in the 250 - 320 GB range, have died over the
 years. I'd guess these enclosures are 4 or 5 years old.

 My question is, could an enclosure that originally held a 250 GB drive
 handle a 2 or 3 TB?

 Tom

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