blog:386_shootout_pcchips_m321

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blog:386_shootout_pcchips_m321 [2021/04/20 16:09] – [Configuration] johnblog:386_shootout_pcchips_m321 [2021/04/28 14:53] (current) – [Configuration] john
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    * The 'cache address line' warning and lack of detected cache is a problem    * The 'cache address line' warning and lack of detected cache is a problem
  
 +After replacing the jumper wires around the cache sockets I get a bit more progress - the "Cache address line" failure is gone, but I have an odd-sized amount of cache showing:
  
 +{{:blog:386:img20210420203041.jpg?500|}} 
 +
 +There's also an error code **1615** showing:
 +
 +{{:blog:386:img20210420203028.jpg?500|}}
 +
 +That should be:
 +
 +   * 15: Keyboard controller failure - okay, we knew about this one
 +   * 16: Size and test CPU cache - that makes sense, as the detected cache is wrong
 +
 +=== Keyboard Controller Replacement ===
 +
 +Amikey-2 to be fitted.
 +
 +=== Cache Socket Trace Repairs ===
 +
 +This clearly still isn't right, so we'll need to redo these repairs from scratch.
 ===== Configuration ===== ===== Configuration =====
  
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    * {{ :blog:386:opti_82c391_mr_bios_v130.zip|MR BIOS v1.30}}    * {{ :blog:386:opti_82c391_mr_bios_v130.zip|MR BIOS v1.30}}
 +   * {{ :blog:386:v020b32f.zip|MR BIOS v1.65}}
 +
 +//Note: To use the MR BIOS version you need either a MR BIOS or AMI branded __keyboard controller__ - alternatives, such as JetKey or Regional will __not__ work; the system will boot (and the keyboard __may__ work in DOS), but you will be unable to enter BIOS, change settings etc.//
 ===== 0 Wait State & Further BIOS Optimisation ===== ===== 0 Wait State & Further BIOS Optimisation =====
  
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 ^ Test                         ^ Config 0  ^ Config 1 ^ Config 2 ^ Config 3 ^ Config 4 ^ Config 5 ^  ^ Test                         ^ Config 0  ^ Config 1 ^ Config 2 ^ Config 3 ^ Config 4 ^ Config 5 ^ 
-|Processor Speed               | 40MHz     |          |          |          |          |          | +|Processor Speed               | 40MHz     | 40MHz    | 40MHz    | 40MHz    | 40MHz    | 40MHz    | 
-|Wait states                   | 1         |          |          |          |          |          |+|Wait states                   | 1         | 0        | 0        | 0        | 0        | 0        |
 |Norton Sysinfo CPU            |           |          |          |          |          |          | |Norton Sysinfo CPU            |           |          |          |          |          |          |
 |Norton Sysinfo HDD            |           |          |          |          |          |          | |Norton Sysinfo HDD            |           |          |          |          |          |          |
  • blog/386_shootout_pcchips_m321.1618931342.txt.gz
  • Last modified: 2021/04/20 16:09
  • by john