RAM trouble!! plz help!

morx · Apr 14, 2005, 10:20 AM

Hi!

I bought New RAM memory yesterday... the memory i bought was these
http://www.geil.com.tw/portal/product_400_tv_dc.php

And the memory i had before were these http://www.micron.com/products/modules/ddrsdram/part.aspx?part=MT16VDDT6464AG-40B

and i've done it like this...i put the new RAM in slot 1 and 3 and the old in slot 2 and 4 and when i check the memory status now it says tat the bus speed is 333Mhz and before it's always been 400Mhz and the new ones are 400mhz to. why wont they work?...have i done something wrong? p.s when i did aida32 benchmark before i got better results with just the old RAM and a worse result with both the new and the old...plz help me...how can i fix this prob?

daedal · Apr 14, 2005, 10:26 AM

Boot up the system only using the new RAM. I'm thinking somebody screwed up and gave you 333 RAM.

morx · Apr 14, 2005, 10:29 AM

ok?...so i should take out the old ram?....but i need them both...thats the prob..

koda · Apr 14, 2005, 11:02 AM

I think what daedal is saying is to take out the old RAM then boot your system with the new RAM and see if it's showing at 333 or 400mhz. If you've got PC2700 and PC3200 in your system it'll only show up as slower 333mhz. By isolating the new ram you can see if someone sold you the wrong stuff.

morx · Apr 14, 2005, 05:05 PM

i've tested all that now and i've been swiching places on the memorys many times in diffrent ways...and when i had the new ones alone it said that they were 400Mhz and when i got all in it says they are 333Mhz....what can i do

**Asmoday** · Apr 14, 2005, 05:11 PM

Many motherboards defaults at 333mhz when you're populating all ramslots...(don't ask me why though :P )

Tipstaff · Apr 14, 2005, 08:58 PM

I noticed in your specs that you have a P4 3.0 Ghz CPU, but what motherboard do you use? As Asmoday has suggested some boards will not work when all the ramslots are used up (can't remember which one specifically atm).

-Tip

morx · Apr 15, 2005, 05:12 AM

the motherboard i'm using is a Fujitsu Simens D1826-G...thanks yo everyone who helps me

The_Neon_Cowboy · Apr 15, 2005, 06:00 AM

You need single sided chipsbe able to populate all 4 slots, nothing will fix your issue!

Quote:

Originally Posted by Asmoday

Many motherboards defaults at 333mhz when you're populating all ramslots...(don't ask me why though :P )

It�s a limitation of thecurrent memory controllers the new AMD64 core �Venice� addresses and fixes the issue.You can use 4 single sided sticks because they use 1 bank only or a mix. Double sided sticks are double bank!When all banks are filled the ram is dropped to T2 and 333 FSB�

512 single sided = 1 bank of 512
512 double sided = 2 banks of 256

imagine that a board has 4 slots and 8 banks, when all 8 are filled the setting drop into a
compatibility mode.