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Windows 7: RAM slow?

19 Jun 2009   #1
brayway

Windows 7 Professional X64
 
 
RAM slow?

Hello there,
alright here is my problem,
i recently bought a new MB CPU and RAM.
i had a few problems at first but have ironed all them out, now here is my new one.
the RAM bought is Kingston KHX8500D2K2/2GN which is a 2GB kit 2*1GB
and is clocked standard to 1066MHz
my MB is an ASUS P5KPL/1600 and can take memory up to 1066.
My CPU is an Intel Celeron 1400 Dual Core at 2.0GHz
so my ram should be running at 1066 shouldn't it?
well everything picks it up at 800MHZ which i find is strange.
and i just now ran CPUz and it is picking it up at 400MHz ??
and i haven't even tried over-clocking so this is how it was when i built it.
any ideas?




Attached Images
RAM slow?-ram.jpg 
My System SpecsSystem Spec
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19 Jun 2009   #2
Dwarf

Windows 8.1 Pro RTM x64
 
 

Hi brayway,

What do the CPU and SPD tabs show?
My System SpecsSystem Spec
19 Jun 2009   #3
brayway

Windows 7 Professional X64
 
 

here u go

thnx for the quick reply


Attached Images
RAM slow?-cpu.jpg RAM slow?-ram2.jpg RAM slow?-ram3.jpg 
My System SpecsSystem Spec
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19 Jun 2009   #4
Dwarf

Windows 8.1 Pro RTM x64
 
 

Hi brayway,

Everything looks OK to me. Just because your motherboard supports 1066MHz RAM, and you have installed RAM of this specification, does not necessarily mean it runs at this frequency. Other factors, such as the choice of CPU that you installed, need to be taken in to consideration.

Your CPU has a speed rating of 2.0GHz. This, coupled with a multiplier of 10x yields a bus speed of 200Mhz. This FSB yields a DRAM frequency of 400MHz (see the memory tab in your earlier post). Referring to both the memory and SPD tabs, we can see that your memory is in fact running at one of its preconfigured ratings, namely JEDEC#3.

The only way of getting your RAM to run at 1066MHz is to increase your bus speed to 266MHz. If you can change your CPU multiplier, then set it to 7.5 which will result in your CPU running at its rated 2.0GHz. Alternatively, you can overclock your CPU so that its effective frequency is 2.66GHz. This can be risky, and you do this at your own risk. Another alternative is that you install a CPU that supports a 266MHz bus speed natively.
My System SpecsSystem Spec
19 Jun 2009   #5
brayway

Windows 7 Professional X64
 
 

hmm i've been looking at overclocking today would the stock heatsink do your first idea?
and the cpu i got was an emergency one as my old one wasnt compable with this board (the Cpu only cost me AU$59)
My System SpecsSystem Spec
19 Jun 2009   #6
Scotteq

Windows 7 (x64)
 
 

OP - All you have to do is adjust the memory divider in the Bios to set your RAM to run at 1066. WHile you're in there, please ensure the voltage and timings are also properly set.
My System SpecsSystem Spec
19 Jun 2009   #7
brayway

Windows 7 Professional X64
 
 

ok, and would i need a better heat ink to overclock to 2.66?? or would the stick cope fine?

thnx

-Braydon
My System SpecsSystem Spec
19 Jun 2009   #8
Scotteq

Windows 7 (x64)
 
 

If you're going to overclock: Be advised that on your chipset the Front Side Buss speeds and Memory Divider are linked. So increasing the FSB - which you have to do to overclock your proccy - will also increase the speed your memory is running at.

So to decrease the likelihood of having to chase multiple issues at once, I therefore recommend leaving your memory alone until your overclock is sorted. Or even DOWNclocking your RAM to make sure it's not a stability problem. Once your processor clock is handled, then you can go back and set memory speeds.


Regarding the HSF: Your stock one is designed for stock speeds. If you're going to be overclocking, I recommend replacing it with a more efficient one.
My System SpecsSystem Spec
19 Jun 2009   #9
brayway

Windows 7 Professional X64
 
 

hmmm.....kk ill have to look into over clocking my CPU and ram tonight
any recomendations on heatsinks?
My System SpecsSystem Spec
19 Jun 2009   #10
fseal

Windows 7 x64 Ultimate
 
 

For all practical purposes you won't notice any difference by increasing just the ram speed.

Increasing the main clock a little which will boost the CPU, bus and memory all togeather will give you noticable gains. Going from 200 to 266 is probably too much unless you up the cooling considerable but even 200 to 233 will be a noticable bump in frame rates in games. Where as leaving it at 200 and upping the ram to 1066 will not be noticable at all I've found (And your ram will run really hot for no real gain)

Otherwise, I'd just leave it. I have 1066 ram and ended up leaving it at 800 myself...
My System SpecsSystem Spec
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