[DuoList] Cannibalizing a 2400 to upgrade another

[Josh Keady]

You will get that cache message with the boot CD because the software  
doesn't know about the G3's onboard cache.  I don't know that the  
freeze at the end was caused by the card, but you can ignore error  
message and proceed normally if you are working without the G3  
software on your boot disk.

When I've seen G3-upgraded 2400s hanging a lot it's either because of  
a bad proc. card or bad / flaky memory.  Memory seems to be the most  
frequent cause (this goes for desktop Macs pushed from 60x to G3  
technology, too) of hard freeze issues.

Good luck,

Josh


On Nov 23, 2008, at 7:18 PM, Ralph Mawyer wrote:

> Susanna, the G3 card is plug and play, once you get the 2400 open.   
> You could actually swap cards and verify both 2400s and the cards  
> with a swap, i.e., if the new host for the G3 has problems, then  
> it's the card.  The display could just be a connection given the  
> symptoms.  Make sure you have the G3 cache software loaded, but I  
> assume you do since you've had it awhile.
>
>
> On Nov 23, 2008, at 9:10 PM, Susanna wrote:
>
>> Hello,
>>
>> I was taking stock of my 2400s today, thinking about what to do  
>> with them.  I haven't actually used any of them for awhile, but I'm  
>> thinking I'd like to start using one again -- and maybe making use  
>> of the others' parts. Only one is currently working, but it's the  
>> most bare-bones one.
>>
>> My best 2400 (the one that has upgrades:  G3, RAM, cardbus enabled,  
>> and a big, quiet harddrive) has the worst problems:  the display is  
>> unreadable unless the frame is squeezed tightly on the lefthand  
>> side; and the 2400 only starts up after MANY tries and resets.   
>> When I try to start up, usually I get a plain blank screen with  
>> just the cursor on it; once in awhile I get a floppy icon; and  
>> every once in awhile, it starts up just fine and works fine for  
>> awhile...and then freezes or shuts itself off.
>>
>> Today I tried starting it from an original 2400 boot CD in an  
>> external CD-rom drive -- and it actually did boot up from the CD,  
>> although mid-way I got this message: "The built-in memory test has  
>> detected a problem with cache memory.  Please contact a service  
>> technician for assistance"  (Then it finished booting up from the  
>> CD, but it was frozen, so I couldn't do anything but force-restart).
>>
>> From the symptoms and the error message, could anyone guess whether  
>> or not the source of the problem is likely to be the G3 card?  If  
>> there's no reason to suspect the G3 card, then what I'm considering  
>> doing -- if I can find a shop to do it -- is having the G3 card  
>> taken out and transplanted into my other 2400 (the one that works).  
>> And, unless there's reason to suspect that the RAM or the harddrive  
>> might be the source of the problems, I'm thinking I'll have those  
>> transplanted to my working 2400 too.
>>
>> If anyone has any thoughts about this possible plan, or has any  
>> other ideas, I'd appreciate hearing them.
>>
>> Susanna
>>
> Ralph Mawyer, Jr.
> San Antonio, Texas
>
> PB2400c/G3-320/112MB/80MB HD/Yu-Plan Keyboard
> mac2400 http://www.sarofax.com/mac2400/index2.html
> Your PowerBook 2400 Reference Site
>
> "They that can give up essential liberty to obtain a little  
> temporary safety deserve neither liberty nor safety". Benjamin  
> Franklin, 1759.