16 Nov
2005
16 Nov
'05
12:48 p.m.
I have been attempting to identify some early CPU coolers, At first I was led to believe
they were off of an IBM system, I have not found any IBMers that could identify them.
I am now thinking they may have been fabricated for any water chilled system,
they may have been a retrofit for an air cooled system in a water chiller enviroment.
From the size of the feed lines, this was a low
pressure high volume chiller, and there
were between 30 and 40 of these hanging on
the system doors.
Here is a link, if anyone recognize them, I am sure Lew (the owner) would love to know as
would several others who are equally baffled.
http://www.ibm-collectables.com/gallery/view_album.php?set_albumName=album07
Bob Bradlee
On Wed, 16 Nov 2005 08:45:33 -0800, Chuck Guzis wrote:
On 11/16/2005 at 10:46 AM Allison wrote:
>Water cooling had one less obvious avantage. You
can dump the waste heat
>outside the building or at least outside the computer room.
At CDC Sunnyvale, we had a big cooling tower that
handled both the chilled
water for the computers as well as the HVAC for the building. When I first
came to Sunnyvale, I remember that the first thing that I saw of the
building (sitting in the middle of an onion field) was the big vapor plume.
I can't ever remember seeing a water leak in the
machine room. The Bryant
6603 disks (and one very memorable 808 drive) would leak hydraulic fluid,
however. Made a terrible mess.
By far, the worst problem was construction that was
going on in the area.
It would cause the power to go out at unexpected times. Bringing a machine
back up after a power failure in those days was a major chore taking hours
and sometimes days. Normally, machines were never powered down, except
for moving or major maintenance.
As I remember it, both CDC and Cray used the same guy
to design their
refrigeration--and he wasn't an employee of either firm, but a guy who used
to work for Amana.
Cheers,
Chuck