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Service Hints & Tips

Document ID: GSMH-38SHBX

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PC Server 300 - EISA 16/4 Busmaster Token Ring Card

Applicable to: EMEA

Symptom:
The old IBM EISA 16/4 Token Ring card, p/n 63F0412, is no longer available. It is replaced by a reworked card, p/n 1051712. The reworked card has 14 wire adds and a small (1 inch square) daughter board. This card fixes all known problems that the original card had with higher speed machines (a few 66 MHz 486 machines and many Pentium machines). The reworked card fixes 5 separate timing problems.

Problem Isolation Aids:
The known failures with the old card included:

• NEC Express/II 466 ST
• AMBRA Pentium
• HP Netserver LE PC (486 DX2)
• DELL Omniplex
• TULIP (don't yet have model number)
• AST Premmia 4/66d
• IBM's 8640 Server systems

Fix:
There will be slightly modified drivers shipped with the new cards. The new drivers have a reduced internal card burst size (this has nothing to do with EISA burst mode). Because these cards do not support EISA burst mode transmission, they will not have good performance in any of the split bus (combined EISA and PCI bus) machines. Many of the Pentium machines, including IBM's Pentium 8640, and the Dell Omniplex are split bus. We recommend not using more than one of our cards in such systems.

SAS KEYWORDS:
D/T8640 PS2SYS EISA TOKEN-RING
BUSMASTER 63F0412 1051712 1051714
REWORK

	Search Keywords
	Hint Category	Networking
	Date Created	01-12-94
	Last Updated	25-03-99
	Revision Date	25-03-2000
	Brand	IBM PC Server
	Product Family	PC Server 300
	Machine Type	8640
	Model
	TypeModel
	Retain Tip (if applicable)	H041124
	Reverse Doclinks and Admin Purposes