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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!mcsun!sun4nl!sci.kun.nl!pieterh
- From: pieterh@sci.kun.nl (Peter Herweijer)
- Subject: Re: L-ISA(?) - 486s motherboards
- Message-ID: <C0qLoH.3Jz@sci.kun.nl>
- Sender: news@sci.kun.nl (News owner)
- Nntp-Posting-Host: wn2.sci.kun.nl
- Organization: University of Nijmegen, The Netherlands
- References: <ah.726418285@dolphin.doc.ic.ac.uk> <C0oxuo.Dq8@bailgate.gpsemi.com>
- Date: Tue, 12 Jan 1993 10:41:05 GMT
- Lines: 33
-
- In <C0oxuo.Dq8@bailgate.gpsemi.com> lee_b@sn4901.oldham.gpsemi.com (Lee Burley) writes:
-
- [...]
-
- >I have also seen this article and have a few questions:
- >2. I see all the motherboards use 70nS RAM, how can this be??
-
- As far as I know all modern PC's use 70ns RAM. It's the most widespread
- and therefore the cheapest variety. The speed difference between the
- processor and the RAM is compensated for by the cache.
-
- >3. If the choice were between a DX33 and a DX2-50, which is the best buy
-
- Depends on what you want to do. If you're moving around lots of data,
- the DX33 is faster, because the DX2/50 works at 25MHz external. When
- you're doing computations the DX2 is faster. I'd say that, unless you
- want to build a server, the DX2 is the best choice overall.
-
- >4. Would I need a chip cooler (fan) and if so where can I get one in the UK?
-
- Intel says its chips don't need a fan (except for the power supply fan,
- of course). Others say that the chips are more reliable (live longer)
- with a fan. They're both right, of course. A 486 will live a respectable
- time without a fan (probably far longer than its economic lifetime).
- However, it's a known fact for any kind of chip that life expectancy
- decreases 50% with every 10 degree Celcius increase in chip temperature.
-
- >6. Is the 486DX2-66 a reliable part?
-
- I believe so... but just to be sure many vendors put a fan on top of it...
-
- Peter Herweijer
- pieterh@sci.kun.nl
-