ND-5000 boards

This is an incomplete compilation of known boards used in the ND-5000 series of computers.

The ND-5000 processors were implemented using several boards and modules. Different processor generations included the Samson and Rallar architectures, with multiple CPU configurations, memory capacities and clock speeds.

The ND-5000 series evolved over several years. Some PCB designs were used in more than one product configuration, while other boards were individual processor, cache, memory-management or arithmetic modules.

Table of ND-5000 series boards

This list is based on currently available board and product information. New additions can be made when another board is discovered, either as surviving hardware or through documentation.

Board	Drawing	Name	Product number	Notes
5502	PCB 5502	N-5000 Basic CPU Type I	20001	Samson
5502	PCB 5502	N-5000 Basic CPU Type II	320002	Samson
5503	PCB 5503	N-5000 Basic CPU Type III	320003	Samson
6201	PCB 6201	N-5000 Basic CPU IV	320026	Rallar, 25 MHz, 16 MB
6201	PCB 6201	N-5000 Basic CPU IV	320027	Rallar, 45 MHz, 16 MB
6201	PCB 6201	N-5000 Basic CPU IV	320028	Rallar, 45 MHz, 8 MB
6201	PCB 6201	N-5000 Basic CPU IV	320034	Rallar, 45 MHz, 32 MB
6201	PCB 6201	N-5000 Basic CPU IV	320035	Rallar, 45 MHz, 64 MB
5502	PCB 5502	Samson motherboard	324602
5503	PCB 5503	Samson motherboard	324603	Used in 58xx systems
5601	PCB 5601	Samson Instruction/Data Memory Management System controller module	324701	MMS module
5602	PCB 5602	Samson Access Processor module	324702	ACCP module
5604	PCB 5604	Samson Arithmetic and Logical Unit module	324704	ALU module
5607	PCB 5607	Samson Control Store, 16K module	324707	CS module
5608	PCB 5608	Samson Instruction/Data Address Controller module	324708	IDA module
5609	PCB 5609	Samson Micro Instruction Controller module	324709	MIC module
5610	PCB 5610	Samson Instruction/Data Cache module	324710	CACHE module
5614	PCB 5614	Samson I-level Data Address Controller booster module	324714	IDAC booster module
5615	PCB 5615	Samson Additional Arithmetic Processor module	324715	AAP module
5616	PCB 5616	Samson Access Processor module	324716	ACCP module
5617	PCB 5617	Samson Instruction/Data Cache module	324717	CACHE module
5618	PCB 5618	Samson Instruction/Data Address Controller module	324718	IDA module
5913	PCB 5913	Samson dummy module	324913
5914	PCB 5914	Samson dummy module	324914
5604	PCB 5604	Samson Arithmetic and Logical Unit module	350162	ALU module
6201	PCB 6201	Rallar motherboard	350401
6202	PCB 6202	Rallar 8 MB local memory	350402
6203	PCB 6203	Rallar CPU	350403
6204	PCB 6204	Rallar ICA	350404
6205	PCB 6205	Rallar DCA	350405
6206	PCB 6206	Rallar RAAP	350406
6212	PCB 6212	Rallar CPU	350412