Support #796

Upgrade CPU to Pentium III, add extra memory for NLX board, install DVD-RW

Added by tin over 9 years ago. Updated about 9 years ago.

Start date:
Due date:
% Done:


Estimated time:

Updated by tin over 9 years ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 20

DVD-RW Installed.

Pending 2x256MB from ebay, shipped already by seller


Updated by tin over 9 years ago

  • % Done changed from 20 to 50

Installed 512MB Micron PC133 in PPC board.
256Mbit memory not supported in PC board, so installed 2x256MB PC133 Micron on NLX SU810

Ordered and paid Pentium III 1000/256/100 SL5QV CPU


Updated by tin over 9 years ago

Bought pair of P3 1.4GHz Tualatin-S, to try get them working in CSA7404


Updated by tin over 9 years ago

  • Status changed from In Progress to Resolved
  • % Done changed from 50 to 100

Received CPUs:

1 x Pentium III 1000/256/100/1.75V , SL5QV
2 x Pentium III-S 1400 1400/512/133/1.45V, SL5XL Tualatin

Pentium III 1000E (Coppermine-256) started successfully, without any modifications required.
Tualatin did not started, VCORE = 1.3VDC measured, no boot.

Modification in progress:

1. Изолировать ножки процессора: AN3 (DYN_OE), AJ3 (RESET#2).
2. Изолировать AK4 и соединить его с AK26: VttPWRGD route to 1.5V from AN11 via 1Kohm
3. Соединить AM34 и AK36. (VID25mv)
4. Изолировать ножки: G35, G37 и N37.
5. Cоединить: G35,G37 и N37 вместе.

Now CPU working fine, 100MHz FSB * 10.5 ratio = 1050MHz @ 1.45V

Scope upgrade complete, no other plans.


Updated by tin about 9 years ago

  • Status changed from Resolved to Closed

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