So my question is, why can the system know that it’s there, but when I install all of them does it not like it? When I enter the bios the system can see the 2GB Stick (+ the old 1GB stick)

I therefore removed that and placed in a working stick from the old build and included a stick from the new set. I removed all but one and still the problem persisted. The problem that I am having is that when I replaced all the ram at once, it wouldn’t boot and displayed a “3-4” error message on the indicator array on the front panel. This time the base clock is upped to 800Mhz.įrom my understanding, the clock speed rarely has an effect because of the dynamic way that signals for these devices work? I.e it can essentially de-tune to 667mhz if the system needs it. I’ve purchased online 4x2GB DDR2 RAM also from Samsung.

A seagate 500GB HDD and (originally) 4GB of Samsung PC2-5300U DDR2 ram in a 4x1 configuration. My build so far is an Optiplex 755 SFF with a lovely E8600 core 2 duo CPU. The advise I followed was mostly from this website but now I feel like I can’t find the solution. So far everything has gone without a hitch. So I’ve done a lot of searching on this forum about upgrading my PC.

Optiplex 755 sff memory slots