---
title: "The RAM-BO RAM Test"
type: "article"
slug: "the-ram-bo-ram-test"
url: "http://localhost/article/the-ram-bo-ram-test/"
markdown_url: "http://localhost/article/the-ram-bo-ram-test.md"
published_at: "2026-03-14T12:39:19+00:00"
modified_at: "2026-03-14T12:39:19+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "BASIC program by James Lowry testing all RAM (0-65535) by POKEing 0 and 255 to each address and PEEKing for defects. Prints defective addresses to LPRINT. Instructions: first PRINT PEEK 23653+256*PEEK 23654 to find the program's own start address, then substitute it in line 20 to exclude the program from testing. Takes approximately 23 minutes…"
category:
  - name: "Timelinez"
    slug: "timelinez"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/timelinez/"
post_tag:
  - name: "BASIC (programming language)"
    slug: "basic-programming-language"
    taxonomy: "post_tag"
    url: "http://localhost/tag/basic-programming-language/"
  - name: "TS 2068"
    slug: "ts2068"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts2068/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
model:
  - name: "Timex/Sinclair 2068"
    slug: "ts-2068"
    taxonomy: "model"
    url: "http://localhost/model/ts-2068/"
indiv:
  - name: "Walt Gaby"
    slug: "walt-gaby"
    taxonomy: "indiv"
    url: "http://localhost/indiv/walt-gaby/"
publication_r:
  id: 21571
  title: "Timelinez"
  type: "periodical"
  url: "http://localhost/periodical/timelinez/"
authors_r:
  - name: "Walt Gaby"
    slug: "walt-gaby"
    taxonomy: "indiv"
    url: "http://localhost/indiv/walt-gaby/"
volume: "3"
issue: "12"
issues_articles:
  - id: 65873
    title: "Timelinez v3 n12"
    type: "issue"
    url: "http://localhost/issue/timelinez-v3-n12/"
pages: "3"
pubdate: "December 1985"
archive_link: false
---

# The RAM-BO RAM Test

BASIC program by James Lowry testing all RAM (0-65535) by POKEing 0 and 255 to each address and PEEKing for defects. Prints defective addresses to LPRINT. Instructions: first PRINT PEEK 23653+256*PEEK 23654 to find the program’s own start address, then substitute it in line 20 to exclude the program from testing. Takes approximately 23 minutes 50 seconds.