Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!att!cbnewsh!mbb
From: mbb@cbnewsh.ATT.COM (martin.b.brilliant)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Turbo Mode
Message-ID: <1929@cbnewsh.ATT.COM>
Date: 5 Jul 89 21:13:51 GMT
References: <46200003@attcc.UUCP>
Organization: AT&T Bell Laboratories
Lines: 25

From article <46200003@attcc.UUCP>, by dlm@attcc.UUCP:
> I am having trouble getting the turbo mode on my XT clone to work now that I have
> added 384K on a Zuckerboard to complete the 640K.

I tried to answer this by email, and after two failures I decided my
comment might be of general interest.

Partial answers have already been given.  Phil Buckland asked:
        Have you made sure that the DRAMs which you added are fast enough?

Then I suggested:
        The question may be: is the Zuckerboard certified for 10 Mhz?

I got an email message today that seems to confirm that suspicion:
        I've heard complaints about Zuckerboards not being able to keep
        up with 8MHz PC 6300's, let alone 10MHz clones.

A convoy moves no faster than its slowest ship.

M. B. Brilliant					Marty
AT&T-BL HO 3D-520	(201) 949-1858
Holmdel, NJ 07733	att!hounx!marty1 or marty1@hounx.ATT.COM

Disclaimer: Opinions stated herein are mine unless and until my employer
	    explicitly claims them; then I lose all rights to them.