Article View: uk.comp.os.linux
Article #355Re: Hardware for new Linux box
From: Dave Smith
Date: Wed, 17 Nov 1999 00:00
Date: Wed, 17 Nov 1999 00:00
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2396 bytes
In article <f6ps08.c43.ln@stravinsky>, anahata@freereed.demon.co.uk wrote:
|> Overheating is a separate problem. It can be a consequence of overclocking,
|> and overheating can cause errors, but that's not the only reason why an
|> overclocked device goes wrong. If the logic can't respond fast enough to
|> have the right data at the output when the next clock pulse arrives, there
|> will be errors, simply because the internal logic can't move fast enough (at
|> any temperature).
Rubbish (sort of). Device Speed is always a function of temperature, i.e. the
hotter it is, the slower it runs. Extra cooling in overclocked machines has two
functions:
o Stop the device from exceeding a safe temperature limit, beyond which the chip
can be physically damaged
o Keep the device as cool as possible, to maximise the speed at which it can run
The colder a device is, the faster it will run.
A device which will only run at it's rated speed with normal cooling will be able
to run faster if you can keep it cooler. This is the reason why the Cool Athlon
machines can run at such ridiculously high clock speeds, because they have a
built-in refrigeration unit to keep the CPU very cold.
--
David Smith, Silicon Design Engineer Tel: +44 (0)1454 462380 (direct)
STMicroelectronics Fax: +44 (0)1454 617910
1000 Aztec West TINA (ST only): (065) 2380
Almondsbury Home: 01454 616963
BRISTOL Mobile: 07932 642724
BS32 4SQ Work Email: dsmith@bristol.nospam.st.com
Home Email: David.Smith@gazpacho.nospam.demon.co.uk
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1036bc,57abaeb217d681cb X-Google-Attributes: gid1036bc,public X-Google-Thread: 10d8ad,57abaeb217d681cb X-Google-Attributes: gid10d8ad,public From: dsmith@bristol.nospam.st.com (Dave Smith) Subject: Re: Hardware for new Linux box Date: 1999/11/17 Message-ID: <80ttgr$1aq2@gamma.dmz-eu.st.com> X-Deja-AN: 549638994 Distribution: world Sender: dsmith@contract15 (Dave Smith) References: <942201399snz@siberia.demon.co.uk> <weUWrTASVaL4EwHo@zenn.demon.co.uk> <80kieh$bu7$1@hek.netix.org.uk> <2L7EeNAkFIM4EwfC@clara.net> <f6ps08.c43.ln@stravinsky> Organization: STMicroelectronics, Bristol, UK Newsgroups: uk.comp.os.linux,demon.tech.pc