2x non-functional RiscPC mobos - for cost of postage

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nudelooney
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2x non-functional RiscPC mobos - for cost of postage

Postby nudelooney » Sun Oct 29, 2017 5:20 pm

Would anyone like two non-booting RiscPC motherboards? Both have suffered from battery corrosion. One is missing its RTC chip as a result.

Both have VRAM fitted. I'll see what DRAM I can put in them. One has OS3.7, one has OS3.5.

Free to anyone for cost of postage ... or I can bring them to the winter meetup in Leicestershire if you're in no hurry.

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danielj
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby danielj » Sun Oct 29, 2017 5:22 pm

Oooh, yes please! :) (I'm in no hurry and at Leicester) :)

d.

nudelooney
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby nudelooney » Sun Oct 29, 2017 5:48 pm

danielj wrote:Oooh, yes please! :) (I'm in no hurry and at Leicester) :)

d.


Marvellous! I shall bring them along!

sbadger
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby sbadger » Mon Nov 13, 2017 3:01 pm

darn.. :wink:

i've a board with vram and dram socket damage (snapped and knack'd)

is there a known source so i can fit new ones? googling 72pin dram socket really doesn't work!)

stew
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danielj
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby danielj » Mon Nov 13, 2017 6:53 pm

Simm sockets: http://uk.rs-online.com/web/c/connector ... m-sockets/

VRAM will have a check. Depending on how salvageable these are I may start breaking things up...

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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby sbadger » Mon Nov 13, 2017 8:13 pm

danielj wrote:Simm sockets: http://uk.rs-online.com/web/c/connector ... m-sockets/

VRAM will have a check. Depending on how salvageable these are I may start breaking things up...


nice thank you for that. Do you know why the riscpc boards have the angle simm board, assuming the pins align the board any reason why not to replace with a right angle one?

stew
A3020 | BBCBx3 | Electrn | Masterx3 | RPix3
A600 | C64 bbin x2| C64 C | Toastrack | XB360 | GB | GBC | GBA | GBASP | DS | 3DS XL x2| MD | MS
Atari 7600 | PS1-2-3-4 | PSP | Vita | SNES | GC | N64 | Wii & U | Switch | Jamma Cab | Sony PVMx2

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danielj
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby danielj » Mon Nov 13, 2017 8:43 pm

Because the SIMMS won't fit next to each other - just replace like with like :) (Straight up would probably work)

d.

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danielj
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby danielj » Mon Nov 13, 2017 9:11 pm

The VRAM socket is a 136way D/SIMM socket. I can't find anything appropriate. I suspect it was rather rare - I can't think of anything else that used something like that myself.... :?

sbadger
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby sbadger » Tue Nov 14, 2017 8:20 am

danielj wrote: (Straight up would probably work)

d.


ok, thats what i meant by right angle, right angle to the board, sorry I don't know the conventions on this stuff :oops: .
It's not immediate obvious which ones one RS will fit, tape measure time!
A3020 | BBCBx3 | Electrn | Masterx3 | RPix3
A600 | C64 bbin x2| C64 C | Toastrack | XB360 | GB | GBC | GBA | GBASP | DS | 3DS XL x2| MD | MS
Atari 7600 | PS1-2-3-4 | PSP | Vita | SNES | GC | N64 | Wii & U | Switch | Jamma Cab | Sony PVMx2

sbadger
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Joined: Mon Mar 25, 2013 1:12 pm
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby sbadger » Tue Nov 14, 2017 12:34 pm

right ordered a couple of the 72pin simm ones, hopefully will come in time for me to bring to abug to fit.
Re. the vram, looking at it, it seems it's only lost the clip on one side, I think it's probably usable.
A3020 | BBCBx3 | Electrn | Masterx3 | RPix3
A600 | C64 bbin x2| C64 C | Toastrack | XB360 | GB | GBC | GBA | GBASP | DS | 3DS XL x2| MD | MS
Atari 7600 | PS1-2-3-4 | PSP | Vita | SNES | GC | N64 | Wii & U | Switch | Jamma Cab | Sony PVMx2

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danielj
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Re: 2x non-functional RiscPC mobos - for cost of postage

Postby danielj » Tue Nov 14, 2017 7:31 pm

Good luck! Pictures of how you get on! :) It doesn't need the clip to work at all. Fine without - that just slightly helps in removing the module.

d.


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