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Memory ddr 333 problem

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  • Memory
Last response: in Memory
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June 6, 2011 9:07:11 PM

Hi! I have a p4 @ 2.4, gigabyte 8st-667 and 2 dimms 512 @ 333mgz. Bios "sees" the ram speed (333), but in xp after running cpu-z or everest i see that each dimm runs @ 200mghz only.
Any idea???

More about : memory ddr 333 problem

June 6, 2011 9:42:31 PM

Trust the BIOS in this instance. Also CPU-z shows half the actual speed. That is because DDR transfers data 2x per clock. So 200MHz is actually 400MHz. That's not possible since your mobo only supports 333MHz max so, as I said before, CPUz is probably wrong and you should trust your bios instead.
June 6, 2011 10:13:42 PM

Also everest shows the same, 200mghz...
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June 7, 2011 5:32:43 AM

According to Gigabyte's support page, http://www.gigabyte.com/products/product-page.aspx?pid=..., your motherboard supports up to DDR333/PC2700 memory. If your seeing 200MHz for your memory, that would indicate your running DDR200/PC1600 memory. Are you absolutely sure you have PC2700 memory installed? Could you be mistaking the processor's FSB for the memory speed per chance? The only way to really know for sure is to visually look at the label on the memory.
June 7, 2011 12:19:28 PM

No, I am sure. The bios post also says:

memory ddr 333
cpuid....
...
June 7, 2011 12:28:27 PM

I checked from everest and says that the modules are PC3200. Is this the problem?
June 7, 2011 1:46:34 PM

LOL No wonder... Nope, you don't have anything to worry about then. CPU-Z and Everest are correctly identifying the installed memory. Since your motherboard only supports up to PC2700, your DDR3200 memory will be running at DDR2700 instead thus is why when you boot up it says 333. CPU-Z and Everest are just reading the information programmed into the SPD chip on the memory which is correct. If you had PC2700, it would show 166MHz.

timinator said:
If your seeing 200MHz for your memory, that would indicate your running DDR200/PC1600 memory.


Ignore this.
June 7, 2011 1:53:13 PM

You aren't gaining anything by having the faster memory installed. Think of it this way, you have a car that has a maximum speed of 200MPH that has a speed regulator on it that won't let it go faster than 166MPH. It's just a speed limitation, nothing else.
June 7, 2011 1:53:57 PM

So, if I get it correct, my memory is actively running @ 333mghz, but the cpu-z and everest are just saying 200, right?
June 7, 2011 1:55:24 PM

"You aren't gaining anything by having the faster memory installed. Think of it this way, you have a car that has a maximum speed of 200MPH that has a speed regulator on it that won't let it go faster than 166MPH. It's just a speed limitation, nothing else."

i couldn't find anything lower than this. When I first bought my pc it had 256 ram only!!! (back in 2002)
June 7, 2011 1:58:58 PM

As far as I remember, the dimms were @ 333mghz when I bought them, so are in the max speed as my motherboard can get...
June 7, 2011 4:10:41 PM

vampm said:
So, if I get it correct, my memory is actively running @ 333mghz, but the cpu-z and everest are just saying 200, right?


Correct. Your motherboard is limited to DDR333/PC2700 memory speeds even though you have faster rated memory installed.

vampm said:
"You aren't gaining anything by having the faster memory installed. Think of it this way, you have a car that has a maximum speed of 200MPH that has a speed regulator on it that won't let it go faster than 166MPH. It's just a speed limitation, nothing else."

i couldn't find anything lower than this. When I first bought my pc it had 256 ram only!!! (back in 2002)


What I meant by that was, regardless of the fact you put PC3200 memory in your system, it's not running any faster (or slower) than it would with PC2700. Both are slot compatible so there is no problem with using it this way. I used to recommend PC3200 to people that needed a memory upgrade because it was generally cheaper than the slower speed memory. Only time I saw issues was if an older motherboard didn't like high density memory.
June 7, 2011 7:03:59 PM

Ok then!!! Thanx!!!
!