From Newsgroup: comp.sys.ibm.ps2.hardware

1.4.113 8570 POWER PLATFORM MES UPGRADE INFORMATION

Record number: H036205

Device: D/T8570
Model: M
Tip key:
Date created: O89/10/05
Date last altered: A91/03/06

SYMPTOM: BLANK SCREEN AND NO BEEP AFTER INSTALLATION OF THE
POWER PLATFORM MES.

PROBLEM ISOLATION AIDS: REMOVE THE POWER PLATFORM AND THE TWO
ROM MODULES.

FIX: ENSURE THAT THE ROM MODULES WERE INSTALLED WITH THE NOTCH
FACING TOWARD THE REAR OF THE SYSTEM. IF THE NOTCH WAS TOWARD
THE FRONT OF THE SYSTEM THE ROM MODULES ARE NOW DEFECTIVE AND
THE NEXT HIGHER ASSEMBLY, SYSTEM BOARD P/N92F0581, MUST BE
INSTALLED AND WRITTEN OFF TO MES BR5220.

SWAPPING THE POSITION OF THE ROM MODULES WHILE KEEPING THE NOTCH
IN THE CORRECT POSITION, TOWARD THE REAR OF THE SYSTEM, WILL
DISPLAY A BLANK SCREEN AND NO BEEP, BUT WILL NOT CAUSE DAMAGE
TO THE MODULES.
RE-INSTALL THE ROM CORRECTLY. REMEMBER TO USE THE EXTRACTION
TOOL AS A SUPPORT UNDER THE SYSTEM AS STATED IN THE INSTALLATION
INSTRUCTIONS. THE FOLLOWING MAY HELP: EACH ROM HAS A PART NUMBER
PRINTED ON IT. THE EVEN NUMBERED ROM, AS INDICATED BY THE LAST
DIGIT IN THE NUMBER, PLUGS INTO THE EVEN NUMBERED SOCKET U58.
THE ODD NUMBERED ROM PLUGS INTO THE ODD NUMBERED SOCKET U57.

AGAIN USE THE EXTRACTION TOOL AS A SUPPORT UNDER THE SYSTEM AS
THE INSTRUCTIONS STATE WHILE YOU ARE RE-INSTALLING THE POWER
PLATFORM. MAKE SURE THE SPACE BETWEEN EITHER END OF THE
PLATFORM CONNECTOR AND THE SYSTEM BOARD IS NO GREATER THAN THE
THICKNESS OF A STANDARD PLASTIC CREDIT CARD. FOR PROPER
OPERATION OF THE POWER PLATFORM IT IS IMPORTANT THAT IT IS
SEATED PROPERLY IN ITS SOCKET.
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