I spent quite a while searching through XLR8yourmac files last night ('til
0300) and didn't find but one person who had left a review of a G3 processor
upgrade who said the ROM dimm on the rev A (or 1) Beige was a problem for
him. An excerpt from him and part of the columnist's reply follows. So it
appears that in maybe 90% of the cases the ROM dimm on rev 1's is not a
problem in processor upgrades, but the problem has occurred on occasion.
Guess I will go ahead and get one and try it.
NickUtah
> Mac Type: desktop 266
> Comments: I had an extra G3 400 ZIF from a B/W and was failing miserably
> trying to use it in my beige desktop. Everything I tried resulted in a
> computer only chiming at startup and from that point it sat there doing
> nothing. Fortunately for me, I had a friend with the identical model beige
> desktop, except for his had a later manufacture date with a ROM dimm
> revision.
> The B/W G3 400 worked perfectly with his computer. After some bartering, we
> traded computers and now I own a beige G3 400.
> It is probably mentioned somewhere on this awesome site that 400 mhz G3
> upgrades on Rev A beige G3's can be problematic. If I had better research
> skills I could have saved myself a lot of time.
>
> Mike Comments: I've run G3/400, G3/466 and as high as 533Mhz G3s in a rev A
> Beige years ago (the first tests of the PL G3/466 ran as high as 533mhz).
> [Can't say as I've ran an Apple OEM G3/400 ZIF however - but not sure why
> that
> would be different.] Also I suspect there are hundreds of similar reports on
> G3/400 or faster CPUs in early Beiges here. (OEM ZIFs or 3rd party).
the preceding list post:
>> Date: Sat, 04 May 2002 17:21:44 -0400
>> Subject: Re: processor upgrade for beige G3 to 400 mhz G3
>> From: JustinLee <[EMAIL PROTECTED]>
>> Message-ID: <[EMAIL PROTECTED]>
>> In-Reply-To: <[EMAIL PROTECTED]>
>>
>> I have a rev. 1 beige and I have a G4 400mhz processor and have over clocked
>> it to 466mhz all with no problems at all. I also have a 27GB IBM hard drive
>> in there and a 5GB SCSI drive. Just for your info.
>> Justin
>>
>>> Thanks, I know I got a revision 1 now. :(
>>> Still would like to hear confirmation about needing to change the ROM dimm
>>> to go to >300 mhz processor. NickUtah
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