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A7V8X-X post problems w/ DDR333

H

habbcake

Junior Member
I recently got an A7V8X-X motherboard, but I can't get it to post with the RAM I ordered for it. On post, I was getting repeating beeps indicating a RAM problem, so I pulled a stick from my other system to test it and it posted just fine.

I did some research on the board and read that this has happened to others, so I thought that it might be something I needed to change, rather than a bad stick of RAM. Both sticks of RAM are Crucial 256MB DDR333 PC2700. The model on the new RAM is CT3264Z335.4T, and the old RAM that works on the new system is CT3264Z335.16T

What is the difference between the .4T and .16T? I'm assuming the 16T is for it having 16 modules on the stick, and the 4T only have 4, but what does that mean for the effectiveness of the memory itself?


The suggestions I found in my research was that the A7V8X-X needed a lower clock speed, but since it works fine for the 16T, I didn't see how it would make a difference for the 4T.

Did I get a bad stick of memory? Or do I just need to change the clock speeds or something?


The processor with it: AMD|T-BIRD 1.33GHZ/266
 
Some mobos have difficulty with combinations of different clock speeds/DDR
For instance,
Running the mobo at 400mhz , but using DDR2700.

There might be something about which combinations aren't acceptable on the mobo's website.
 
The A7V8X-X should be okay with that combination. I've used one with a Barton 2500+ and PC2700, one with a T-bird 1.2/100 and PC2700. No problems either way. Crucial's web site calls out the part number you have for the A7V8X-X. I suspect the problem is the 4 vs. 16 modules. I have seen motherboards in the past not work with 4-module memory. ASUS used to list specific memory manufacturers and model numbers in their manuals, but I guess that list got too large to keep.

But, you're right from your experience and mine, it "ain't" the clock speed.
 
One other thing I tried was putting the 4T in my main system to see if it worked there. It would boot with the 4T stick as long as I have one of the 16t with it, but the system didn't actually detect the memory...I still only had 256. But when I try with the same thing with the new system, it won't post even if there is another 16T with it. The main system is a A7N8X Deluxe.
 
Might be worth dropping an email to crucial - i don't know how good they are at replying, but wth.

Also try the mobo maker. you might have found a new bug in their hardware - gee, they'll be so happy with you.
Is it worth trying to flash bios?
 
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