Q: 3400c Ram Card Upgrade via Soldering?
Hello everyone,
I have a PowerBook 3400c with a 64 MB RAM card installed, for a whopping total of 80 MB of ram. I'd like to get the 128 MB Ram card, but they are a rarity and are expensive when they do come around on Ebay and the like.
The card has memory chips soldered on to it, and there's a bunch of blank pads on the card, clearly the same size as the pads that have chips on them. It would make sense that in theory, I could find identical chips (if they're cheap) and solder them on to the blank areas of the RAM card. (Let's assume that I am good at surface mount soldering... I know, I need to practice before I even think about doing this
Would this in theory work? Also I see several tiny unmarked resistors around these chips, that look like jumpers. I'd have to figure out which ones (if any) need to be moved in order for the ram card to recognize the additional chips.
Anyone have any experience or thoughts on this matter?
I have a PowerBook 3400c with a 64 MB RAM card installed, for a whopping total of 80 MB of ram. I'd like to get the 128 MB Ram card, but they are a rarity and are expensive when they do come around on Ebay and the like.
The card has memory chips soldered on to it, and there's a bunch of blank pads on the card, clearly the same size as the pads that have chips on them. It would make sense that in theory, I could find identical chips (if they're cheap) and solder them on to the blank areas of the RAM card. (Let's assume that I am good at surface mount soldering... I know, I need to practice before I even think about doing this
Would this in theory work? Also I see several tiny unmarked resistors around these chips, that look like jumpers. I'd have to figure out which ones (if any) need to be moved in order for the ram card to recognize the additional chips.
Anyone have any experience or thoughts on this matter?
PowerBook 3400c, Mac OS 9.1.x
Posted on Apr 24, 2010 7:36 AM
