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  Intel A80386-16 ΣΣ [flip chip]   []   []   [hide data]   [close image viewer]  
Some 386DX 16MHz Intel processors had a small bug which appeared as a software problem. The bug involved occurred when running true 32-bit code in a program such as within OS/2 2.x, UNIX/386, or Windows in Enhanced mode. The bug would cause the system to lock up and is a difficult issue to determine without having Intel actually look at the chip. Chips that passed the test, and all subsequent chips which were bug-free, were marked with a double-sigma symbol. 386DX chips that are not marked with these symbols may have not been tested by Intel and may be defective.

Comment by Grampa (webmaster[at]cpu-museum.de):
Chips having an 'IV' marking also don't have this bug.
» this chip on cpu-collection.de
  
Core Frequency:16 MHz
Board Frequency:16 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:275,000
Circuit Size:1.50 µ
Voltage:5 V
Introduced:October 17, 1985
Manufactured:week 11/1988
Made in:Malaysia
CPU Code:i386 DX
Package Type:Ceramic
PGA-132
 
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