Hi all,
Could any of you knowledeable people give me a little more assistance on DDR Ram in a PC (not DDR2).
Basically, I have a couple of Desktop PC's. One is running an ECS KV2 Extreme motherboard with an AMD Athlon 64 X2 4200 processor. The motherboard is based upon the Via KT800 Pro chipset.
The other is an Intel based machine (an ex HTPC now put into a desktop case). This has an FIC P4M 915 GD1 motherboard, fitted with an Intel P4 3.0ghz HT processor in an LG775 socket. This motherboard is based upon an Intel 915 Chipset.
Both PC's motherboard have 4 DDR slots, and according to the manuals both will accept up to DDR 400 (PC3200) RAM.
Now here's the problem, I purchased 2x 1GB sticks of Micron DDR PC3200 ram, and tried them in the AMD machine and that system booted OK.
When I tried them in the Intel machine, the computer will not even boot into post. However when I put the old RAM back in, it does boot OK. Mistakenly I thought that DDR 400 was DDR400 ram ? It seems not, as the vendor that supplied me with the RAM gave me a list of chipsets that it supported and the VIA set was there but the Intel set was not. He said that the RAM would definately NOT work with Intel chipsets. Why?
What's the difference between DDR 400 for an Intel machine verses an AMD machine ? The 2 Micron sticks are double sided and apparently have timings of 3-3-3-8 @ 2.5V (if that means anything to anyone ?).
Also, I've tried to add more DDR memory to the intel PC adding RAM into the 2 vacant slots that actually came out of an Intel PC, but again it wouldn't boot. The only thing I can see is that the 2 installed DIMMS (2 x 512MB) have a sticker saying DDR 266 CL2 ECC where as the other sticks I'm trying to add say DDR 333mhz CL2.5 (2 x 256MB sticks) and DDR 400mhz CL3 (1 x 512mb stick).
I know it's not ideal to mix and match memory, but are DDR sticks of different speeds not unsable in a Intel PC ?
Sorry for so many questions. I'm new to all this RAM stuff and just want to know if I can use any of my existing RAM to boost my PC or do I have to buy new ?
Could any of you knowledeable people give me a little more assistance on DDR Ram in a PC (not DDR2).
Basically, I have a couple of Desktop PC's. One is running an ECS KV2 Extreme motherboard with an AMD Athlon 64 X2 4200 processor. The motherboard is based upon the Via KT800 Pro chipset.
The other is an Intel based machine (an ex HTPC now put into a desktop case). This has an FIC P4M 915 GD1 motherboard, fitted with an Intel P4 3.0ghz HT processor in an LG775 socket. This motherboard is based upon an Intel 915 Chipset.
Both PC's motherboard have 4 DDR slots, and according to the manuals both will accept up to DDR 400 (PC3200) RAM.
Now here's the problem, I purchased 2x 1GB sticks of Micron DDR PC3200 ram, and tried them in the AMD machine and that system booted OK.
When I tried them in the Intel machine, the computer will not even boot into post. However when I put the old RAM back in, it does boot OK. Mistakenly I thought that DDR 400 was DDR400 ram ? It seems not, as the vendor that supplied me with the RAM gave me a list of chipsets that it supported and the VIA set was there but the Intel set was not. He said that the RAM would definately NOT work with Intel chipsets. Why?
What's the difference between DDR 400 for an Intel machine verses an AMD machine ? The 2 Micron sticks are double sided and apparently have timings of 3-3-3-8 @ 2.5V (if that means anything to anyone ?).
Also, I've tried to add more DDR memory to the intel PC adding RAM into the 2 vacant slots that actually came out of an Intel PC, but again it wouldn't boot. The only thing I can see is that the 2 installed DIMMS (2 x 512MB) have a sticker saying DDR 266 CL2 ECC where as the other sticks I'm trying to add say DDR 333mhz CL2.5 (2 x 256MB sticks) and DDR 400mhz CL3 (1 x 512mb stick).
I know it's not ideal to mix and match memory, but are DDR sticks of different speeds not unsable in a Intel PC ?
Sorry for so many questions. I'm new to all this RAM stuff and just want to know if I can use any of my existing RAM to boost my PC or do I have to buy new ?