On Feb 10, 2010, at 5:37 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 > I've had the same problem from China sellers. They use a Dell to test the RAM. Just tell them you have an Apple and system profiler doesn't see the RAM and they will ask that you send it back and you will get a refund. Buy that RAM from OWC.
John Carmonne Yorba Linda USA -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
