[Problem] Ram Undetectable?

Um, i had 4 different rams before, and 5 now[DDR RAM]
(1 4-chip, 2 8-chip, and 2 16-chip). For some reason, my motherboard wont wanna detect the rams TOGETHER
its like
TRY 1
[Slot 1=empty]
[Slot 2=256]
Result = runs fine

TRY 2
[Slot 1=256]
[Slot 2=empty]
Result = runs fine

TRY 3
[Slot 1=256]
[Slot 2=512]
Result = some error in startup with the Ram speed/unable to detect ONE of the RAMS

TRY 4
[Slot 1=512]
[Slot 2=256]
Result = some error in startup with the Ram speed/unable to detect ONE of the RAMS

I cant seem to get it to 768 >.>
Help please?

 

Yup. currently at 512 400mhz
the 256's are 200 and 333mhz's(i think)

 

Alright....*sigh* this is where it gets all technical-ish
Motherboard : Intel D845GVS1
Processor : Intel Pentium 4 2.40 GHz
OS : Windows XP Professional SP 2
Sys Manufacturer : Intel
OC : None
PageFile : 1792Mb
BIOS Date : 02/16/04 Ver: 08.00.08
Current RAMS : DDR 256MB 3200(Kingston,APACER), DDR 512MB 400MHz(PQI)
Current GFX card : PCI ATI Radeon Mobility 64MB(No Pci-E slot and AGP slot)
Bios settings : Default(floppy disabled,onboard sound disabled,onboard gfx disabled)
CD-ROM drive : BenQ combo DVD/CDRW
Hard Drives : Maxtor (X2) 40GB(80GB)4 partitions(20GB each)

Enough info? or is there something i missed?

 

um,for the second time, yes, i am now USING the 512

 

So.... is there any solutions?

 

Would getting a new ram help?

 

i'd say

my advice would be either buy a 1gb ram or use an SDRAM with DD. it works fine for my computer

if the SDRAM dosn't work then buy a 1GB.

by the way isn't 512bytes of ram enough for u???

 

I multitask alot >_>

 

did u

i see than why not get a dual core???? u could try celeron D or Athlon64 x2 dual core!!!! anyways there is a better idea if u have a harddrive with a lot of GB then u can use ur harddrive as a virtual memory back up!!! that way when ur ram stops responding ur harddrive kicks in :

 

k k. let's stick to RAM issues before we go on upgrading.

LunatikBunnie, how about getting another 512mb and see how it goes. borrow from a friend or something. heck if you're staying nearby i don't mind helping you out.

you mentioned

now which of the 256 were you using when the SYSTEM was unable to detect it?

 

Hmm.... I put them together and they say something at the bootup. Something about speed issues, prompting me to press f2 to continue. and when i do, it just reads the 256, not the 512.

I stay in Cheras,Maluri..

I set 1.5GB of space as RAM already, it doesnt help much

 

on 3rd and 4th try - which RAM was detected?

 

Its always the 256MB ones getting detected =/