I have 1 stick of 2GB PC6400 Patriot 800 MHz [Model PEP22G6400EL].

Why is it running at 334 MHz?

How do I change that?

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Also, what does single channel ram mean, and why is it bad?

Its running at 668mhz, which means the divider is probably set for 667mhz memory or that is all that your board supports. I would try and manually set the divider in the bios to make it run at its rated 800mhz (400mhz in CPU-Z). What motherboard do you have?

Best,

3Ball

I'm not too familiar with all the advanced settings of memory, like CAS Latency and all that (I've poked around while building computers of course, but never really learned about / changed those settings).

Do I just change the divider, or do I have to change any other settings as well?

I have a ECS GeForce6100SM-M Motherboard. Anything special I should know due to having this motherboard?

You can just change the divider and not worry about the other settings unless your rated timings are lower and you want to run them at that speed. You will also want to manually set your voltage to the rated setting of 2.0v

I am not sure how your motherboards bios is setup, but if you go to change the voltage for the memory and it doesnt show a number such as 1.8, 1.9, 2.0, etc and it just says +.1, +.2, etc then set the setting to the +.2 setting and that will equal out to the 2.0v

So change the divider and voltage setting and you should be good to go.

Best,

3Ball

Great... Pressing delete to get into BIOS setup just leads to a black screen with a cursor blinking. Bleh

That is interesting. A couple things you could try. Turning off the comp and also turn the switch to off on the power supply and let it sit for about a minute then turn it on and try again. Or you could reset the bios manually with the jumper if you know what I am talking about. Your motherboard manual would know where and how to do this if you still have it. I would give those 2 a try and then see if you can get into the bios.

Also, if you can still get to windows. See if ECS has a bios updating software that it runs through windows (abit has a similar program called uguru that allows you to do this automatically) ECS may have the same and if it does then you could try and download it from the website or install off of the motherboard CD. It is usually labeled under utilities or something like it. This could also help to solve the issue if one or the other 2 options dont work.

Best,

3Ball

Its actually running @ 668 right now.

Single channel is because you have ons stick. You need 2 sticks in the same colored slots on a dual channel mobo to run dual channel.

At it's current settings your ram is giving you a total bandwidth of 1333 which is where it should be for the newer 45nm core 2. (assuming you have a core 2). This is ideal and you are not going to gain any real performance by forcing your system to run the memory faster. In fact some would argue it makes it worse. Leave it as is.

CPU-Z is giving you the ram speed 334mhz, but since the memory is ddr (double data rate) each clock tic is worth 2. which gives you 667mhz per memory stick. In order to increase memory performance memory is run in dual channel. by treating 2 seperate sticks of memory as 1 it doubles the efffective rate which in your case will be 1333. Think if dual channel as like raid 0 for memory.

Now you cpu has a FSB of 1333mhz. and you system has a memory bus of 1333mhz. This 1:1 senario is giving you maximum memory performance. Since the cpu cannot access the memory faster then 1333mhz having 1600mhz (that's where you memory would be if it we're running at ddr2 800) will not produce any gains. Now should you overclock your cpu's fsb then the memory performance will go up as well.

Sorry if it's long winded but hope this helps.

That looks like SPD timings.

Here's my CPU:



Crap, does that mean my FSB is 200?

I am severely underclocking my entire system, aren't I?

Do you mean I should "Clear the CMOS"?

Here's an excerpt from the manual:



Full Manual Link: http://www.e4allupgraders.info/dir [...] M_V1.1.zip

I don't know my AMD products. I'm sure your fsb is faster the 200mhz. There is prolly some assumed multiplier for the fsb like the intel chips have. But I'm an intel fan...sorry.

Yes, the part in your bios about clear CMOS is what I was referring to.

No, you are not underclocking your system. The speed is fine. Your processor does not use FSB like an intel machine. Your bus speed is multiplied by 5x to give you the 1000mhz HT speed that it is showing and that speed is actually performing at 2000mhz in a similar way to your DDR. As said above. Their are multipliers at work here and CPU-Z shows them for what they begin at.

The onboard memory controller is what most of these numbers are affecting in relation to your CPU. Intels is located on the motherboard and reads differently (for now). So dont worry about any of your CPU settings. They are all fine. I personally used to own that exact same CPU...well the 939 version. lol

Best,

3Ball