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- Path: sparky!uunet!gatech!hubcap!ncrcae!ncrhub2!ncrlnk!ncrdnde!ddbeano!stan
- From: stan@ddbeano.Dundee.NCR.COM
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Run a 486/33MHz CPU at 40 or 50MHz?
- Message-ID: <1868@ddbeano.Dundee.NCR.COM>
- Date: 10 Jan 93 12:05:06 GMT
- Sender: root@ddbeano.Dundee.NCR.COM
- Lines: 22
-
- In article <1993Jan8.100550.9995@ac.dal.ca>
- francis@ac.dal.ca writes:
-
- > I have a 486DX/33MHz system, and I have been told by the manufacturer
- that
- > the motherboard is upgradeable to 50MHz by plugging in a new crystal and
- CPU.
- >
- > Question: Is it possible to plug in (say) a 40MHz or even a 50MHz
- crystal
- > into the board *without* replacing the old (33MHz) CPU?
- > If so, is there a performance improvement or will the 486DX 33MHz chip
- just
- > burn itself out, ie, has it been internally hardwired for the specified
- clock
- > frequency of 33MHz? I would like to hear from anyone who has attempted
- this
- > (with/without success).
- >
- I increased a 486sx25 to 40Mhz by adding a heatsink and fan. No problems.
-
- Stan
-