Nope, its Dual Density. On Feb 10, 2010, at 6:37 AM, Geke wrote:
The bottom line first: If a 512MB PC133 SDRAM RAM module for the G4 Digital Audio has chips on one side of the stick only, can it be low-density? Thanks in advance! Geke History of this case: My G4 DA had 3 RAM sticks: 128, 256, and 512MB. I wanted to increase the RAM and bought a 512MB stick. It didn’t work. Then I asked here what I had missed, and the conclusion was that I should have bought low-density RAM. (Searching the group for "RAM digital" will find that thread in 2nd position; for some reason I can’t add to it anymore.) Then I bought a low-density stick, and it’s working fine. I was happy! Then I thought: why not max out the RAM? So I bought another 512MB stick, this time from a different company -- the first offer was not available anymore. But this stick, even though it’s advertised as low- density, has chips only on one side, and it doesn’t work. (I tried it in all three slots.) Now I want to complain to the company that they have sent me a wrong stick, but first I want to be certain that it really can’t be a low-density one. There’s almost nothing printed on the chips, only two lines like this: 64x8SDRAM P 0810 and, vertically, something looking like a batch number that varies from chip to chip: 8XJY 889H 8XK2 8XL8 5YJB F7JB 8ZBQ 9348 For completeness, the description they give on ebay: 512MB 168PIN PC133 SDRAM LOW DENSITY 133MHZ 512 PC 133 Product Details: • 168-pin unbuffered DIMM • Density: LOW DENSITY • PC133 133FSB • 3.3 Volts • 6 Layer unbuffered • CAS Latency 3 • 4 Bank • Off-chip driver (OCD) impedance adjustment, and on die termination (ODT) Technical Information: Memory Size: 512MB SDRAM 168Pin Number: 1 x 512MB Memory Speed: 133Mhz More Information: 512MB x 1 Non ECC Non Registered UnBuffered 6 Layer Non Parity
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