mobo and ram

[wahoyaho]

i have 2x256mb ram in dual channel right now but i want to get it up to 1gig so i can game better. I'm just wondering if i should
1) get rid of the ram i have now and buy 2x512mb sticks
2) buy another 512mb stick and put it in my 3rd slot (i have 4 in total)
3) buy another pair of 2x256ram stick and put them in the 3rd and 4th slot?

Ok, so I think I will by two more identical 512mb rams to run in dual channel. Should I keep the 2x256 I have right now so I will have 1.5gig in total? (Or what is this T2 command thing I hear)

Also, I have P4P800-VM and they have a DDR QVL list
http://usa.asus.com/products/mb/socket478/p4p800-vm/overview.htm

P4P800-VM DDR Qualified Vendor List(QVL)

Size Vendor Model Brand Component Max.
DIMMS
256MB Samsung M368L3223DTM-CC4 Samsung K4H560838D-TCC4 4
256MB Samsung M368L3223ETM-CCC Samsung K4H560838E-TCCC 4
512MB Samsung M368L6432ETM-CCC Samsung K4H560838E-TCCC 4
256MB Infineon HYS64D32300GU-5-B Infineon HYB25D256800BT-5B 4
512MB Infineon HYS64D64320GU-5-B Infineon HYB25D256800BT-5B 2
256MB Transcend TS32MLD64V4F3 Samsung K4H560838D-TCC4 2
512MB Transcend TS64MLD64V4F3 Samsung K4H560838D-TCC4 2
256MB Winbond W9425GCDB-5 Winbond W942508CH-5 4
512MB Winbond W9451GCDB-5 Winbond W942508CH-5 4
256MB A DATA MDOAD5F3G315B1ECZ Samsung K4H560838D-TCC4 2
256MB TwinMOS MDSTTUF08108L294K4
FW0/T TwinMOS TMD7608F8E50B 2
512MB Hynix HYMD264646B8J-D43 AA Hynix HY5DU56822BT-D43 4
512MB Apacer 77.10636.465 Samsung K4H560838D-TCC4 4

The ram I'm considering buying is KVR400X64C25/512
http://www.ec.kingston.com/ecom/configurator/PartsInfo.asp?ktcpartno=KVR400X64C25/512
but it is not on the list here
http://www.ec.kingston.com/ecom/con...SUS&model=P4P800&distributor=0&submit1=Search

KVR400X64C3A/512 however is.
http://www.ec.kingston.com/ecom/configurator/PartsInfo.asp?ktcpartno=KVR400X64C3A/512

I asked their support and they said the only difference between the two is C25 has CL2.5 while C3A has CL3. So will it work in my mobo?

You can see that KVR333X64C25/512 is on the list too but that's only DDR333 :/

Please help! Thanks

 

[wahoyaho]

can anyone help please?

 

[thunderroller]

ram of same make and model will go fine if there are 4 ram slots

 

[wahoyaho]

no i don't actually have any kingston ram yet, i'm just wondering if one model will work, will another model which the only difference from the one that works is it's cas latency will also work.