I have a emachine t3656 I install extra memory in no.2 slot and pc will not start both slots will work with the stack of memory that came with the pc. The memory I'm trying to install is pc2 1 gig 667MHz ddr2 dual channel memory. Specs say total memory capacity is 2 gigs. Both memory sticks were from same manufacturer. Took one out and pc started fine. Can anyone help?
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You might have on-board VGA card which take 8 Mb (shared) in memory taken from extended memory card. My suggestion, use exactly similar memory card ( same PC clock, either 400/533/667/etc. If this won't work, try to clean the memory slots with brush.
Well yes, in a way the amount of memory should match in each slot. So with two slots you can have two 512MB which will give you 1GB. Or you can get rid of those and use one slot and just put a 1GB stick in it. Finally, you can buy two 1GB sticks, put one in each slot and have 2GB...it is not recommended to put 512MB in one slot and then 1GB in the other slot. That will cause your computer to become unstable..hope this answers your questions.
Unfortunetly you cannot use ddr2 memory on this motherboard. The motherboard supports only PC2100/PC1600 DDR memory if you have version 8.1 of the motherboard. If you have v5.0 of the motherboard than you can only use sdram or ddr 266Mhz RAM. The same goes for the video card. The p4vmm2 motherboard is a rather old motherboard so I don't think it will payoff to upgrade the computer. It will be probably the best if you buy another computer.
Several long beeps means there is a problem with the memory. First of all make sure the memory is seated in the slot perfectly. There should be no movement whatsoever when you gently try to rock it side to side. If it still persists the bad news is the memory is most likely shorted out or defective. They are VERY sensitive to static electricity. I would go ahead and put the old memory back in for now and send the new defective memory back. Most vendors will issue you a replacement free of charge if you let them know it's not working.
I had the same issue on this board where it came with a Samsung 512 MB 533 MHz PC2-4200 DDR2 DIMM. I put in a 1 GB Kingston with the same specs (533 MHz PC2-4200 DDR2) and it would not recongize the Samsung anymore with the system reading as 1 GB of RAM instead of 1.5 GB. Tried every configuration and would only see the Kingston. It would only see the Samsung if I pulled out the Kingston regarless of the slots I use. So, I just bought the exact same make/model of Kingston and it recognized that fine and the system now has 2 GB of memory (max this board allows). And, I had already installed the latest BIOS for this board from Intel before doing all this so wasn't an old BIOS. I'm figuring the board didn't like something about the Samsung memory (speed, module configuration, etc.) that made it not play nice with the Kingston. If interested I bought the DM8400A/1G Kingston modules. And, this board appears not to support dual channel memory. Only has channel A, slots 0 and 1, and I read need two channels to support dual channel (seems obvious). Boards that supports dual channel memory normally have 4 memory slots, two for channel A and two for channel B, then put in matching modules in slot 0 for channel A and B and have dual channel memory access. And if want more ram, then matching modules in slot 1 for channel A and B.
Hi reisrui, yes it is odd. (It's not the first time I have seen this.)
According to you're manual on page 6, under Specifications. The manual say's you can run up to a Max speed of PC3200 400MHz, 1GB in slot one. In slot 2 you can run a Max of 1GB of PC2700 333MHz in slot 2. Every motherboard I have come across that can run two different speeds of memory. The system will reduce the Max speed to the lower MHz memory speed. If you currently are using 512MB PC3200 400MHz in slot 1 & add 1GB of PC3200 400MHz into slot 2 for a total of 1.5GB of memory. The motherboard will ruduce the total memory over all speed to PC2700 333MHz. Motherboards alway run at the lower memory speed if two different speeds are presant.
I can’t be 100% sure of the 1GB of PC3200 400MHz into slot 2, will run at all! Or if it will be reduce down to 333MHz. I am sure you can run 2GB of PC2700 333MHz, 1GB of memory per slot in you're board for a total of 2GB.
If I can help you further, feel free to post. Suggestions & comments welcomed.