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- From: hallam@zws010.enet.dec.com
- Newsgroups: comp.arch
- Subject: Re: question on computer systems using Alpha ...
- Message-ID: <1992Aug12.121427.10251@dscomsf.desy.de>
- Date: 12 Aug 92 12:14:27 GMT
- References: <1992Aug10.202955.4254@talon.ucs.orst.edu> <DOCONNOR.92Aug11133018@potato.sedona.intel.com>
- Sender: news@dscomsf.desy.de (USENET News System)
- Reply-To: hallam@zws010.enet.dec.com ()
- Organization: Digital Equipment Corporation
- Lines: 25
- Nntp-Posting-Host: 131.169.46.50
-
- In article <DOCONNOR.92Aug11133018@potato.sedona.intel.com>,
- doconnor@sedona.intel.com (Dennis O'Connor) writes:
-
- |>bhandarkar@wrksys.enet.dec.com (Dileep Bhandarkar) writes:
- |>] [...] The [ Alpha 21064 ] CPU does need 3.3V. [...] You can derive the 3.3V
- |>] from a standard 5V supply by using a DC to DC regulator on your
- |>circuit board.
- |>
- |>Yes, I'm sure you can, but what does a 10-amp 5V-to-3.3V DC-to-DC
- |>converter look like, how big is it, does it need a fan, and how
- |>much does it cost ? :-)
- |>
- |>Seriously, is such a beefy DC-to-DC converter really avaialble ?
-
- Leafing through the data sheet I've just pulled off gatekeeper.dec.com,
- the chip itself can drop 36 watts, I think the problems cooling the chip
- will be challenging enough without getting hung up about power suplies.
- Adding a power rail is probably trivial comapred to the other changes
- you are likely to need.
-
- Perhaps this will supur the developmen of some non standard cooling
- methods. My favorite suggestion is to use the heat sink to keep the
- coffee warm...
-
- Phill
-