AboutBobbert Expertise Questions related to processors and memory from roughly a decade of personal experience, willing to take a stab at any question you might have, with knowledge reaching from the AMD K7 (Athlon, AthlonXP, Duron, Sempron) to the AMD K8 and K9 (Athlon64, Athlon64 FX, Opteron, Athlon64 x2, Phenom X3/X4) generations, and from the Intel Pentium III to Core 2 generation, as well as accompanying technologies, including mainboards, chipsets, and memory.
Experience Computer enthusiast and hobbyist, years of IT experience here and there (still always room to learn!).
Question I have an Emachine T5224 with the following:
Intel® Pentium® D 820 Processor (Dual-Core)
64-bit processor with Intel® EM64T Technology
Each core operates at 2.80GHz | 2 x 1MB L2 cache | 800MHz FSB
Intel® 945G DH (Viiv™) Chipset
1024MB DDR2 dual channel (2 × 512MB), 533MHz (PC4200)
EVGA nVidia GeForce 6200 256MB TV/DVI PCI-Express Video Card with a 22" Widescreen LCD monitor.
I wanted to upgrade the memory. The Crucial.com memory scanner and several websites stated that the T5224 would support 4096MB DDR2 dual channel (2 × 2048MB). I bought 2 Corsair 2048MB 1066Mhz DDR2 (XMS2). (CM2X2048-8500C7 3.00v ver1.1) I figured the memory would run at the lower speed of the memory bus on the T5224 MB. When I put the new memory in, it worked fine to get me into the bios. I set the memory configuration to "aggressive" (stupid) and when I saved and rebooted the computer all I get is three short beeps - no matter whether I replace the old memory (in either slot or both) or no memory at all-- I still only get 3 beeps. I have taken out the video card and no change. All of the fans are running on the computer, the cd-rom works (opens), but no picture comes up on my screen. The keyboard lights up initially, but then doesn't work after the three beeps. I cannot get into the bios to change the setting. I took out the internal battery but it didn't help reset the bios. In my research I found that DDR2 memory operate at 1.8v so I am not sure what the 2.00v rating on the Corsair memory. The memory was really warm when I took it out to put in the old memory. Did I burn up the MB? I am not sure if I need just a new MB or a new processer/MB .... If you have any advice, I would appreciate it.
Answer In attempting to clear the CMOS, did you remember to unplug the system from wall power? If yes, and the CMOS still did not clear, refer to your owner's manual, as there is likely a jumper or switch which will clear the CMOS. From there, you should be able to boot with the original 1GB of RAM, and try your upgrade again with proper settings in the BIOS.
