Question about memory? (It's not hard)

[FenderG101]

OK I was wondering...I have a computer with a 512 ddr RAM installed and it has an extra RAM slot...I was wondering if it's possible to install a ddr 2 into that extra slot? Will the two memory cards be compatible. Could it hurt my computer at all to try it anyways? Like if I put it in and it doesn't work can't I just take it right back out with no side affects?

 

[Atomic Rooster]

No. You can only use DDR on that motherboard.

DDR has 184 pins whereas DDR2 has 240 pins. They are not interchangeable.

 

[FenderG101]

Ok Well Can I take memory out of this computer...http://www.shopping.hp.com/shopping/data_sheet/pj467aa.html
and put it into this computer ?http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00047204&cc=us&lc=en&dlc=en&product=383638&dlc=en&lang=en

 

[Thelis]

Yes, they are both 184-pin DDR RAM sticks. Make sure they are at the same speed though.

 

[Atomic Rooster]

Yes. They both use 184 pin DDR modules.

 

[FenderG101]

Yes, they are both 184-pin DDR RAM sticks. Make sure they are at the same speed though.

Would it work if they were different speeds?

 

[Celegorm]

Yes, they are both 184-pin DDR RAM sticks. Make sure they are at the same speed though.

Yes. They both use 184 pin DDR modules.

Negative. It will not work. While they are both 184 pin, one is pc133 which has a different keying compared to what we now know as standard DDR.

 

[Atomic Rooster]

Celegorm -
The HP Pavilion a345w supports PC2100/PC1600 DDR memory. Here are the motherboard specs from HP.

Besides PC133 is 168 pin.

They will work. Hopefully they are of the PC2100 variety and not PC1600.

 

[Celegorm]

That's just weird. I look at the page he gave us and it shows PC133, yet the link you gave (which I did see on the one he gave) mentions a completely different RAM style. I wonder which is right...

 

[Atomic Rooster]

I think it was worded that way as PC2100 runs on a 133MHz bus.