Removing soldered components

[JimS]

jjans wrote:
Hey I LIKE that technique! Sort of similar to my original 'Red Green' style of using a hammer, a chisel, and a plier(and a case of beer). This technique works GREAT on WINDOZE machines...

Yeah, there is a certain satisfaction to torching a pc motherboard.... ya just have to add in a little Tim Allen-style grunting... :-)  

I've used the solder sucker method too... one thing I've found is that boards vary quite a bit. Those multi-layer boards drain a lot of the heat out of the iron... at least a cheap one like mine. :-)

[Cyberus]

@ MikeyMike

That reminds me of school chemistry lessons - blow down the bunsen tap to put everyone's burner's out, sabotage other people's experiments by dropping sweets, pain killers, indigestion tablets in the beaker when they weren't looking - or my personal favourite:
there would be four rows of benches in the labs, each with three sinks sunk (unsurprisingly) into them. At the end of each row you could turn off the supply. So, turn the supply off, turn all the taps on - when the teacher's back's turned, or when people are standing around at the start of the lesson - turn the master tap back on....fat soaking!!!!

[JimS]

KapitanKlystron wrote:
I believe that is called "non-destructive removal" :-D

It's more emotionally satisfying. :-)  

[jjans]

Well I bought the solder sucker and it worked great. Thanks to all for the advise. I also gotta blow torch for an old PC card for fun...

I removed the 4 x 20 pin RAM DIP chips from an old A501 expansion card, and installed them onto my A590's card, and it worked great.

Still having a couple of dip sockets still open, I got even more exited, and ripped open another A501 card (and discovered a leaky battery...) and also discovered that this one used 16 pin RAM DIP  chips.

I now know the difference between the 2 A501 cards: Rev 5 (64 Kb chips) and Rev 6C (128 Kb chips) .

Both my A500's are REV 6A motherboards, which also mount 20pin 128 KB dips.

For my UFI fill for the day, does this mean the REV 5 motherboards mount the 8 x 16pin 64 KB Dips?

Better still, you think one could sew them together some how, in order to use them in the A590???
I know what you are thinking...
What a freakin' 'DIP-CHIP'

[JimS]

jjans wrote:

Both my A500's are REV 6A motherboards, which also mount 20pin 128 KB dips.

For my UFI fill for the day, does this mean the REV 5 motherboards mount the 8 x 16pin 64 KB Dips?

The Rev 5 A500 uses 16 256Kx1 drams... that's your 512K.  The Chips in the Rev 6 motherboards are  256K x 4 bit drams.

I doubt there's an easy way to use the older rams  in the 590.
... unless you want to glue them on the case for decoration.  :-)