Conference ssag::ask_ssag

6510.0. "HS241 Power Redundant problem" by TPOMC2::SUNNYSOONG () Tue Mar 25 1997 01:40

I have questions on HS241's full redundant power function,

	1. There two Alpha processors, two power source and each processor
	   has two power supply(primary on left side and redundant on right
	   side). when the HS241 delivered to customer site we found the
	   primary and redundant power supply use same power source for each
	   alpha processor. Is this correct?

	2. I guess for each Alpha processor should use different power source
	   so I connect the primary power supply to black color power cord and
	   connect the redundant power supply to white power cord, that means
	   different power source.

	   Then, We test the power redundant function and we got different
	   result. We has two HS241,

		a. One of HS241 has problem when switch off black power source
		   it fail both Alpha processor but no problem when swith off
		   white power source.

		b. The other HS241 has random symptom, that means some time
		   work some time not.

	   This is the first set HS241 in my country and I have no ideal
	   for the problem. Please give me a hand, thanks very much!

	Sunny

Please contact the product manager John (SSDEVO::) Wainiopaa for the answer.

This problem is known, the solution not.

Hans van Sluis