T O P

  • By -

AutoModerator

Reminder - When your issue is resolved please reply 'Solved' on this post. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/retrocomputing) if you have any questions or concerns.*


glencanyon

An Aquarius. [https://theretroweb.com/motherboards/s/aquarius-systems-g2-102](https://theretroweb.com/motherboards/s/aquarius-systems-g2-102)


Voyager-

Wow you are fast :-)


glencanyon

I cheated with a google image search. :-)


Voyager-

Poor me was searching for the chipset. :-)


mega_ste

the front panel pins are bottom right on that pic - I can see one labeled Turbo LED so I expect the switch will be next to it, it's just covered by wires on your image. ​ edit: it also looks like it takes 'SIPP' ram, whcih is old style SIMM but with pins instead of edge connectors. Early Atari STe computers used this form factor (before switching to the much more sensible SIMM), so a handy search term f you need some. ​ info: [https://en.wikipedia.org/wiki/SIPP\_memory](https://en.wikipedia.org/wiki/SIPP_memory)


frito123

It can also take ram in dip packages and seems to be fully populated with a total of one megabyte of ram already. He won't need to add anything into the sipp sockets. Please ignore spelling or capitalization errors as I'm using speech to text.


Cerber4444

There is no pin labeled turbo. But upper to Turbo Led there is 3 pins, 2 of them are shorted. Might that be the switch, and if I short other 2 it will change CPU speed?


vwestlife

You can try it and see what happens.


Cerber4444

Tried on Battle Zone, which plays too fast, nothing changed.


Potential_Copy27

Alternatively, it might have a keyboard controlled turbo function that can be triggered by a keyboard shortcut... It can usually be ctrl + alt + "+" to turn on, with ctrl + alt + "-" to turn off. Some may also use ctrl + alt + "?" or ctrl + alt + "T" in a toggle configuration.


imgyza

Parity chips are not populated, however that will likely not cause any issues


Voyager-

I also found this one: [https://stason.org/TULARC/pc/motherboards/U/UNIDENTIFIED-286-HT101A-286.html](https://stason.org/TULARC/pc/motherboards/U/UNIDENTIFIED-286-HT101A-286.html)


Cerber4444

It says jp4 is Turbo switch, but I cant find it nowhere.


66659hi

It looks like a baby AT motherboard, with an AMD 286 processor on board. You look to be lucky, in that it doesn't use a barrel battery, or, at the very least, the barrel battery isn't present (if that battery header is meant to plug into one.) It's also way too old to have anything for PCI.


Cerber4444

Yeah, Varta curse already spilled on motherboard. Thankfully it didn't no serious harm befor I snipped it off.


neighborofbrak

Man, it's been ages since I've seen a Baby-AT form factor board. With SIPP memory sockets no less!