bkyser wrote:
They are the same, unless the manufacturer did something different, and put the wrong sticker on it. (2 of them, because I sent the first one that I thought was the issue back, and they sent me a replacement, all have the exact same part number and specs)
I have seen that happen back when I was an electronics engineer. Especially in civilian electronics. I have a Lap top that is having a similar problem. I have been told the mother board was not made to use more than 3 gig ram in the laptop and I have been told all of the chips have to be exactly the same to upgrade. The lap top has 2 chips in it now one a 2gig and the other a 1 gig. Tried adding a 4 by itself and it did not work and i tried adding a 2 and that did not work. My lap top chips also have to have the same voltage value as the chips made for it come in 2 different voltage ratings. That may be your problem. Check to see if one of the chips you have has a different voltage rating and contact the motherboard manufacturer to see if they have an answer. I was told by a tech rep that my laptop may not have been made to accept an upgrade in ram.