nanog mailing list archives
Re: Temp at Level 3 data centers
From: Roy <r.engehausen () gmail com>
Date: Fri, 13 Oct 2017 11:10:51 -0700
The IBM 308x and 309x series mainframes were water cooled. They did have Thermal Conduction Modules which had a helium-filled metal cap, which contains one piston per chip; the piston presses against the back of each chip to provide a heat conduction path from the chip to the cap. The cap was connected to the chilled water supply.
On 10/13/2017 10:51 AM, Chris Adams wrote:
Once upon a time, bzs () theworld com <bzs () theworld com> said:Also, the IBM 3090 at least, was cooled via helium-filled pipes kind of like today's liquid cooled systems. It was full of plumbing. If you opened it up some chips were right on copper junction boxes (maybe they were just sensors but it looked cool.)Cray supercomputers had Freon lines through them for cooling, up until the last generation of the "old school" supercomputer. That was not sufficient to keep it cool, so they sealed the chassis (which was huge) and pumped it full of 4 tons of Fluorinert.
Current thread:
- Re: Temp at Level 3 data centers, (continued)
- Re: Temp at Level 3 data centers Eric Kuhnke (Oct 11)
- Message not available
- Re: Temp at Level 3 data centers Zachary Winnerman (Oct 11)
- Re: Temp at Level 3 data centers Ken Chase (Oct 11)
- RE: Temp at Level 3 data centers Naslund, Steve (Oct 11)
- Re: Temp at Level 3 data centers Jeremy Austin (Oct 11)
- Re: Temp at Level 3 data centers Thomas Bellman (Oct 11)
- Re: Temp at Level 3 data centers Sam Silvester (Oct 12)
- Re: Temp at Level 3 data centers Jean-Francois Mezei (Oct 12)
- Re: Temp at Level 3 data centers bzs (Oct 13)
- Re: Temp at Level 3 data centers Chris Adams (Oct 13)
- Re: Temp at Level 3 data centers Roy (Oct 13)
- Re: Temp at Level 3 data centers Jean-Francois Mezei (Oct 13)
- Re: Temp at Level 3 data centers Roy (Oct 13)
- RE: Temp at Level 3 data centers Naslund, Steve (Oct 11)
- Re: Temp at Level 3 data centers Chuck Anderson (Oct 11)
- Re: Temp at Level 3 data centers William Herrin (Oct 11)
- Message not available
- Message not available
- Re: Temp at Level 3 data centers Baldur Norddahl (Oct 11)