Re: Ross RT625 in SS20

●To: CLIFFORD HAIGHT <klemish%hotmail.com@localhost> ●Subject: Re: Ross RT625 in SS20 ●From: Gordon Zaft <gordonzaft%gmail.com@localhost> ●Date: Tue, 10 Jan 2017 13:14:10 -0700

Thanks. This is an SS20 though not an SS10.

On Tue, Jan 10, 2017 at 1:01 PM, CLIFFORD HAIGHT <klemish%hotmail.com@localhost>wrote: IME my single 100MHz Ross modules runs hotter than using two SM85s. Running four 166 CPUs sounds pretty scary to me Sent from my BlackBerry 10 smartphone.

From: Mike Spooner

Sent: Tuesday, January 10, 2017 11:05 AM

To: Romain Dolbeau

Reply To: Mike Spooner

Cc: Gordon Zaft; NetBSD port-sparc mailing list

Subject: RE: Re: Ross RT625 in SS20

That indeed has been my experience! Mind you, the 166MHz modules run very hot, so be careful if you have *two* of them in the SS10. They were orginally specified by Ross for the roomier and better-ventilated HyperStation systems. A good de-dusting of the SS10 PSU vents etc before you start is a wise precaution. -- Mike Spooner --------- Original Message --------- From: Romain Dolbeau To: Gordon Zaft ,NetBSD port-sparc mailing list Date: Tue Jan 10 18:22:43 GMT+00:00 2017 Subject: Re: Ross RT625 in SS20 2017-01-10 19:17 GMT+01:00 Gordon Zaft <gordonzaft%gmail.com@localhost>: > My question is -- don't I need to have 2.25R and not 2.25? <http://mbus.sunhelp.org/systems/sun/ss20.htm> says you need 2.25R only for the 'D' version of the HyperSPARC. <http://mbus.sunhelp.org/modules/index.htm#hyper> says the 'D' version are all 180 MHz or higher. I read this as, if your HyperSPARC are 166 MHz or lower, 2.25 should be enough. Cordially, -- Romain Dolbeau

--

Gordon Zaft
Province 35 Governor
Phi Mu Alpha Sinfonia Fraternity
gordonzaft%gmail.com@localhost

●References: ●Re: Ross RT625 in SS20 ●From: Romain Dolbeau ●Ross RT625 in SS20 ●From: Gordon Zaft ●RE: Re: Ross RT625 in SS20 ●From: Mike Spooner ●Re: Ross RT625 in SS20 ●From: CLIFFORD HAIGHT

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