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i didnt know that my ddr400 run at ddr333 !! HELP PLZ

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February 27, 2006 5:04:21 PM

OK , Last month i had only 1 gb (2x512) mb ddr400 Kingmax !! and it runs fine , since the last week that i bought 2 more kingstone ddr400 (2x512 mb) and install them , i feel so good in BF2 and FEAR , but to day i install the CPU-Z and it said that my memory run at 333 !! (2.5-2-2-6)
i check the bios and it said the same thing :cry:  :cry: 
i use the manual memory controler in bios and force my memory to run at 200 MHz , now CPU-Z said i have 4 x512 ddr400 !!
so whats this ? should i change the memory seting to AUTO and use DDR333 or is it good to force them to runs at ddr400 ???
(but since i change them into DDR400 i dont feel ANY difference in anything !!)
HELP ME PLEASE !! :wink:
February 27, 2006 5:42:25 PM

It's normal for most motherboards to drop the DDR down to 333 when installing 4 modules. The normal solution is to set it manually in BIOS as you have done.

You won't notice a significant difference between 333 and 400 imo, but as long as the system is stable, I would recommend you leave it at 400 as that is what the memory is capable of (and there will be a difference, even though it's not that noticeable).

Hope this helps.
February 27, 2006 5:43:55 PM

dude thats normal on any a64 it will run 4 sticks of ram at ddr333 you wanna run ddr 400 get 2x1gb sticks and sell your old ones
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February 27, 2006 5:54:03 PM

AMD never has made a ICM that can realy run 4 dimms right, but it should run four at rated speed with 2T enabled. Hope they fix that with AM2.
February 27, 2006 6:04:52 PM

Yep, damn memory controller. I always figured 333Mhz was for the safe side of stability, just defaulting to that.
February 27, 2006 6:09:30 PM

Quote:
I always figured 333Mhz was for the safe side of stability, just defaulting to that.


That's certainly the excuse ASUS use :lol: 
February 27, 2006 6:19:01 PM

Set it to DDR 400, run memtest86. If you go through one pass it's okay.
February 27, 2006 6:25:35 PM

what about ddr500 and 600 does go back down to ddr 333 or 400?
February 27, 2006 6:26:53 PM

They realy are not supported by most mobos. You need to overclock to use them to spec.
February 27, 2006 6:35:56 PM

ok man but what if i oc with four sticks will it go down to ddr333 or higher :?:
February 27, 2006 6:47:36 PM

The only reason it would goto 333 is a AUTO setting in BIOS. It would do that for stablity, but you need to try to see what it will run at. Some DDR 400 can run DDR 600 if you overclock it (TCCD.) Most will run 420 or more, but four dimms will slow it down. With K8, 2T is manditory to use four dimms and increases memory lateny by 30% but just about 3% of a performance hit overall. It is better to run 2 dimms most of the time, but for BF2 four 512s are better than just two (memory hog.)
February 27, 2006 7:06:40 PM

ok thx man
February 28, 2006 2:09:00 PM

OK , in 1gb mode it sets to ddr400 at 2.5,3,3,7 when i installed 1 more gb of ram it went to ddr333 on 2.5,3,3,6 i use the manual settings and change it into ddr400 at 2.5,3,3,7 an now system runs cool and fine , i dont see any problem !!
thank you guyz !! :D 
March 1, 2006 2:00:06 AM

So what's the timer of your DRAM Command Rate, 1T or 2T?
March 1, 2006 3:44:53 PM

its 2T by Defaulf , and when i changed it to 1T the system wont start !! then i restart the cmos and now eork with 2T ? so whats the deal ?
March 1, 2006 3:51:50 PM

Quote:
its 2T by Defaulf , and when i changed it to 1T the system wont start !! then i restart the cmos and now eork with 2T ? so whats the deal ?


The Athlon memory controller has issues with 4 dimms. It will only run at 2T with all four dimms installed!
March 2, 2006 11:53:36 AM

I have the same problem with my new 512mb stick. I have a 400mhz dimm and bought another one but when I put them together the frequency dropped to 333mhz.

What I am supposed to do ?
Sell these sticks and buy a 1gb dimm ?

thanks


------------------
Athlone 64 3000+
Asus K8N - 2x512 at xxx Mhz :) 
Geforce 6600gt agp 128mb
March 2, 2006 12:56:18 PM

Quote:
I have the same problem with my new 512mb stick. I have a 400mhz dimm and bought another one but when I put them together the frequency dropped to 333mhz.


If you only have two sticks they shouldn't default to 333 but you never know! Try going into the bios and selecting DDR400 (or 200Mhz depending upon your bios). Then you can verify in Windows with CPU-Z.
March 2, 2006 1:38:13 PM

I set 400mhz in the bios (and the other options are on AUTO). But they still don't work at the right frequency.

I talk to the shop owner and he offered me to change the new stick. But I don't think it's a matter of substituion....
March 2, 2006 1:44:46 PM

Some Asus motherboards only have a 'Limit' function for the memory clock speed. This means that it only prevents the frequency going above what you set as the limit in BIOS.

Some BIOS updates may fix this, but you will need to check for your motherboard.

However, as Flyguy stated, it's unusual to have that problem with only 2 sticks of memory.
March 2, 2006 1:51:38 PM

If the sticks aren't matched, you may have other problems. The two sticks probably have different timing requirements, so you would probably have to set them to the slowest for each entry.

Unmatched memory might work better in single channel mode rather than dual channel so you might want to play with which slot you stuck the new stick in.
March 2, 2006 2:03:21 PM

play ? what do u mean ?
how can i change dual/single channel mode ?


thanks
March 2, 2006 2:16:28 PM

You cant with a socket 754 it is only single channel, with others you must put same size dimms in the same color slots.
March 2, 2006 2:43:24 PM

ah, ok...it's not my problem, then..

so, i'll change my stick with another one.
Anonymous
a b } Memory
June 15, 2011 1:50:52 AM

In a computer that has 512 mb RAM DDR200,can i put it out and put 2x512 DDR400???what solutions i have ?
!