Any unsoldered pins on the back of a Zip GSX 1.02?

["Warren Ernst" <wernst@gmail.com>]

All,

OK, so I have an 8MHz Zip GSX from ebay. It came with 16k of cache in
the form of 4 70ns ram chips. The card has run flawlessly for a few
months.

Some time ago I bought 32k chips: two 70ns parts, and then two 20ns
parts and two 15ns parts, since they were all cheap.

The 70ns chips went in the two DATA sockets, while the 20ns chips went
in the tag ram sockets.

Now here's the thing: two of the pins on the second TAG ram socket do
NOT have solder connecting them to the circuit board. The pins pass
through the hole and are bent, and they may have some peripheral
electrical contact, but it sure looks to me like someone forgot to
apply solder to these pins at the factory.

Anyway, with the DIPS set for a 64k cache, I get occasional crashes
with weird, garbled text at the bottom of the screen. (Sorry, I should
have, but didn't, write it down.) After reading through the archives, I
set the DIPs to 32k cache (which means it would ignore the second two
sockets, including the one with the unsoldered pins), and the system
seems rock stable. I've also read that the 16k cache setup uses
different pins on the ram sockets than the 64 k setups..

So, it seems to be I should get out the soldering station and take care
of these two errant pins, but before I do, I thought I would check in
with others. So, owners of a ZIP GSX: are you SURE that ALL the pins of
the second TAG ram socket are securely soldered to the board? Indeed,
are there any loose, unsoldered pins on the board?

(Incidentally, though the crystal is a 32 MHz unit, and all software
says it runs at 8MHz, it only has a 7 MHz cpu. Also, it uses the 2-lead
crystal pack instead of the 4-pin DIP crystal. Zip overclocked these
CPUs from the factory?)

-Warr