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What is IT8721F-BX?

This electronic component, produced by the manufacturer "ELITEGROUP COMPUTER SYSTEMS", performs the same function as "Ibex Peak platform cause S3 resume fail issue".


IT8721F-BX Datasheet PDF - ELITEGROUP COMPUTER SYSTEMS

Part Number IT8721F-BX
Description Ibex Peak platform cause S3 resume fail issue
Manufacturers ELITEGROUP COMPUTER SYSTEMS 
Logo ELITEGROUP COMPUTER SYSTEMS Logo 


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ELITEGROUP COMPUTER SYSTEMS CO., LTD.
Date: 3/10/2011
Page: 1
SIO IT8721F-BX/DX in
Ibex Peak platform
cause S3 resume fail
issue
Issue Topic:
Technical Issue Survey Form
Prepared by:
RD Department:
FISH
BUI/ODM1
Doc.: ECS Technical Issue Survey Form V.A
Free Datasheet http://www.datasheet4u.com/

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IT8721F-BX equivalent
ELITEGROUP COMPUTER SYSTEMS CO., LTD.
Date: 3/10/2011
Page: 5
Root cause : Power sequence between PCH core 1.05V and PWROK resume from S3 to
S0 are failure.
Solution : PWROK output signal changed from pin 32 PWRGD1_30ms to pin 78
PWRGD3_150ms to meet the correctly power sequence of PCH core 1.05V stable to
PWROK active specification , and configure SIO PWRGD3_150ms time t5 to 135ms from
register address 2A , Bit 0=1, refer to below picture:
1)SIO connect to pin78 :
2)SIO register set address 2A,Bit 0=1 :
3)Correctly waveform with implementation of solution , PCH core 1.05V stable 106 ms to PWROK active :
Doc.: ECS Technical Issue Survey Form V.A
Free Datasheet http://www.datasheet4u.com/


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1. cause S3 resume fail issue

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Featured Datasheets

Part NumberDescriptionMFRS
IT8721F-BXThe function is Ibex Peak platform cause S3 resume fail issue. ELITEGROUP COMPUTER SYSTEMSELITEGROUP COMPUTER SYSTEMS

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