PC-8201 BANK2 32kB SRAM card - Revision history

Sadolph at 21:10, 31 March 2022

2022-03-31T21:10:05Z

← Older revision		Revision as of 14:10, 31 March 2022
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	== Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A ==		== Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A ==

			Have a PC-8201A with only one Bank? If you open up the memory compartment,
			and RAM 4,5,6,7 are empty then this is for you.
			This single card provides 32kB for Bank 2, replacing 4 "standard" M100 8kB RAM modules.
			It plugs right in!

			If you just want to add 16k to Bank 1, I have a derivative product for that as well.

			Note: Most 8201A have round machine-pin receptacles, but some have IC sockets that take flat pins.
			At time of order, confirm the type of pins you need.


	'''(for 16kB see below)'''		'''(for 16kB see below)'''

2021-11-07T16:28:56Z

← Older revision		Revision as of 09:28, 7 November 2021
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	== Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A ==		== Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A ==

	(for 16kB see below)		'''(for 16kB see below)'''

	NEC originally shipped the PC-8201 / 8201A with only 16kB in Bank 1, but it can support 2 banks of 32kB.		NEC originally shipped the PC-8201 / 8201A with only 16kB in Bank 1, but it can support 2 banks of 32kB.

2021-11-07T16:27:57Z

← Older revision		Revision as of 09:27, 7 November 2021
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	== Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A ==		== Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A ==

			(for 16kB see below)

	NEC originally shipped the PC-8201 / 8201A with only 16kB in Bank 1, but it can support 2 banks of 32kB.		NEC originally shipped the PC-8201 / 8201A with only 16kB in Bank 1, but it can support 2 banks of 32kB.
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	[[Media:MEMCHK_NEC.zip\|MEMCHK for NEC]]		[[Media:MEMCHK_NEC.zip\|MEMCHK for NEC]]


			== 16kB Version ==

			Bank 1 on the stock NEC PC-8201A was supplied with 16kB only.
			To upgrade this bank to a full 32kB, you can use a similar but smaller card.
			It plugs into RAM 2 and 3. Same process and physical orientation as the 32kB card.




	[[Category:Model T Hardware]]		[[Category:Model T Hardware]]

2021-07-14T12:41:35Z

← Older revision		Revision as of 05:41, 14 July 2021
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	=== Memory Test ===		== Memory Test ==

	Here is Paul Globman's MEMCHK.DO (ported to NEC by yours truly).		Here is Paul Globman's MEMCHK.DO (ported to NEC by yours truly).

2021-07-14T12:12:36Z

Installation

← Older revision		Revision as of 05:12, 14 July 2021
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	== Installation ==		== Installation ==

	1. ~~For NEC, flip~~ over the laptop and remove the memory compartment cover.		1. Flip over the laptop and remove the memory compartment cover.
	~~For M100, remove the 4 screws and separate top from bottom, so you can access the SRAM sockets~~.
	2. Align and orient the SRAM card over the sockets.		2. Align and orient the SRAM card over the sockets.
	~~For NEC, you~~ are installing a full 32kB in RAM 4,5,6,7.		You are installing a full 32kB in RAM 4,5,6,7.
	~~For M100, you are installing 24kB in Option RAM 1,2,3~~.
	3. Carefully press the SRAM card until it is fully seated in the sockets.		3. Carefully press the SRAM card until it is fully seated in the sockets.
	Be careful not to bend the pins!		Be careful not to bend the pins!
	4. Reassemble the computer, turn on and run a memory test to confirm the installation is good!		4. Reassemble the computer, turn on and run a memory test to confirm the installation is good!



	== Post-Installation Photos ==		== Post-Installation Photos ==

2021-07-14T00:48:15Z

Memory Test

← Older revision		Revision as of 17:48, 13 July 2021
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	Here is Paul Globman's MEMCHK.DO (ported to NEC by yours truly).		Here is Paul Globman's MEMCHK.DO (ported to NEC by yours truly).
	Load and run the .DO program.		Load and run the .DO program.
			Remember, 1 beep means 'All good!'.

	[[Media:MEMCHK_NEC.zip\|MEMCHK for NEC]]		[[Media:MEMCHK_NEC.zip\|MEMCHK for NEC]]

2021-07-14T00:46:08Z

Post-Installation Photos

← Older revision		Revision as of 17:46, 13 July 2021
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	[[Image:8201_SRAMs.jpg]]		[[Image:8201_SRAMs.jpg]]



			=== Memory Test ===

			Here is Paul Globman's MEMCHK.DO (ported to NEC by yours truly).
			Load and run the .DO program.

			[[Media:MEMCHK_NEC.zip\|MEMCHK for NEC]]


	[[Category:Model T Hardware]]		[[Category:Model T Hardware]]

2021-07-14T00:29:57Z

Add 32kB BANK 2 to your NEC PC-8201 or PC-8201A

← Older revision		Revision as of 17:29, 13 July 2021
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	NEC originally shipped the PC-8201 / 8201A with only 16kB in Bank 1, but it can support 2 banks of 32kB.		NEC originally shipped the PC-8201 / 8201A with only 16kB in Bank 1, but it can support 2 banks of 32kB.
	These machines use the same SRAM modules as the Model 100, so to ~~upgrade it fully~~ you would need to		These machines use the same SRAM modules as the Model 100, so to install Bank 2 you would need to
	buy 6 of these modules! Ouch!		buy 4 of these modules! Ouch!

	This add-on card plugs into the SRAM sockets associated with Bank 2 - RAM 4,5,6 and 7 - and provides		This add-on card plugs into the SRAM sockets associated with Bank 2 - RAM 4,5,6 and 7 - and provides

2021-07-14T00:28:39Z

Post-Installation Photos

2021-07-14T00:28:09Z