Actually, I plan to get the Kingston 512mb KVR533 for my pc but no more stock so I went for 1gb KVR667 lor...Both ram only different by RM4 nia... 1gb 667 - RM123 and 512mb - RM119 The guy said no problem one, can work one...only cannot go up to 667mhz nia if my mobo only support 533.....so I beli lor...

that is common issue that been faced by buyer. Normally it can be use but there is limitation. You cant do dual channel if the modules are not same.

@yeeck06

best bet is to buy ram in pair. it will run in dual channel unless your mobo picky. if buy separate, bring your old ram together for reference.

agree with that. Buy in pair. It will reduce chances of getting not reliable RAM.

y u guy din buy DDR800 cos in future when u need 2 upgrade ur PC jz change mbo nia..cos DDR800 price is dropping now..lyp makiwa jz sell Adata 1GB DDR800 @ RM140 only..

well, the concept of single channel and dual channel is simple.

For single channel(2 stick):

the memory utilization, is based on stick per stick. This mean as long as the first stick not fully utilize, the second stick will become idle.

Dual Channel :

The ram Read and Write occur is simultaneously. This means for the ram will be access-from and write-into in two ways.

That is the general concept. If you need further info, please let me know

guys..
i got some noob question here..
i got mobo that support ddr1 only..
can i run ddr2 ram on my system?? and it run dual channel??

it wont even fit in

ddr1 and ddr2 both has dual channel mode, provided your mobo support it and you use same type(size,bank,whatever) of memory

btw..jz wondering..I jz made a new system, running on sempron. Bought the ram at Lowyat. Can work but weird thing is when i use CPUZ,Everest or Sisandra, it states the ram is Hyundai instead of Kingston. Is this normal?And also, to run dual channel, can i like put 1gb on slot 1 and 2, and 2gb on slot 3?Was thinking to get another 2x2gb or 1x1gb =/ Hope u guys can help. I nv check wat chipset is mine yet coz no internet at home =.=! Hopefully it's a good 1 . Btw cool guide on ram here. thanks a lot Jinaun-sama!!!!!!!!!!!!!!

It is stated so due to the chipset that been used by Kingston.

i noe Kingston uses Hynix ram, but first time i see a ram that states Hyundai instead of kingston o_o".Seeing this, do i need to get the same type of chipset ram in order to run in dual channel?

recommended if you can get the same chipset.

so..wat chipset does my ram uses, damn hard to check.. I attached it here. Thanks alot for replying/helping.


Attached thumbnail(s)

There is no software that can be used to check the chipset that is on the rams.
The only way to check it is by taking out your ram, look at the chipset by yourself, then take note of it.

yes, indeed. You have to check it manually as Shawty mentioned.

But if you worry, maybe you could get match pair ram so that the issue of mismatch chipset is solve instantly.

wanna ask is there performance diff for these??

2x 1gb DDR2 533mhz

and

2x 1gb DDR2 677Mhz?

the mhz affect it how?? by using same brand, same spec, same speed, we got Dual channel already rite??

Well, back to basic principle. Mhz is the mention of cycle per second. SO basically greater Mhz is better than lower Mhz. But if you could get higher mhz with tighter timing, it is much better.