My Memtest86 (v4.20) results

FredeGail said:

Hey mate!
Thanks for your really interesting post. I think I have that stuff covered, my older brother last weak took a look at that. The first picture you're seeing here is a little information about the RAM I'm using taking from my MemTest before I had the errors.
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You might take a look if I need to change something.

The yellow color in the RAM voltage is telling you the voltage is to low. If it was red it would be to high.
I'm using basically the same RAM in my older system and I have the voltage set to 2.15 (yours is 2.10) so try raising it to 2.15 and see what happens.

Memtest says you have DDR2-400 memory running at 534MHz with a 334MHz FSB. Are those actually DDR2-400 or DDR2-1066 sticks? What exact memory do you have?

FliGi7 said:

Memtest says you have DDR2-400 memory running at 534MHz with a 334MHz FSB. Are those actually DDR2-400 or DDR2-1066 sticks? What exact memory do you have?

Oh, what is a FSB exactly? I have Cosair 2x2 RAM as well, but only running with one stick. I'm not sure, you might check out the specs here:

Corsair DOMINATOR
CM2X2048-8500C5D
XMS2-8500
2048MB (2GB)
1066MHz
5-5-5-15
2.10V ver2.1

Really not sure what DDR2 version they are.

FSB is the Front Side Bus, the frequency that data travels the lines.

Ok, that looks fine, then. PC-8500 DDR2 RAM runs at 1066 MHz (533 MHz in dual-channels equating to 1066 MHz). If it was DDR2-400 like memtest was saying and you were running it at 533 MHz, it would be overclocked and most likely require higher than stock 2.1 voltage which could have easily accounted for the memory errors if it was being undervolted. However, this makes more sense. You are running it at the native 1066 MHz frequency, so you're using a 5:8 ratio for your memory (334:533).

Just a little FYI for you.

FliGi7 said:

FSB is the Front Side Bus, the frequency that data travels the lines.

Ok, that looks fine, then. PC-8500 DDR2 RAM runs at 1066 MHz (533 MHz in dual-channels equating to 1066 MHz). If it was DDR2-400 like memtest was saying and you were running it at 533 MHz, it would be overclocked and most likely require higher than stock 2.1 voltage which could have easily accounted for the memory errors if it was being undervolted. However, this makes more sense. You are running it at the native 1066 MHz frequency, so you're using a 5:8 ratio for your memory (334:533).

Just a little FYI for you.

Right now, basically, I have everything on [AUTO] except the clock 5-5-5-15. Thanks for the useful information. Please keep posting interesting information :)

Well, it's pointing to that being bad memory at this point. What exact replacement memory did you order?

FliGi7 said:

Well, it's pointing to that being bad memory at this point. What exact replacement memory did you order?

It's totally bad memory if you ask me. This is the core of my problem I think. The new sticks i'm buying is right here!:

Kingston HyperX 2 x 2 GB - KHX8500D2K2 (2 sticks as well)
They have some cool features n' stuff.

Those should work, but what's the reason you keep buying 1066MHz memory? As I showed you above, your CPU clock is running at 5/8 the speed of the memory, so that memory isn't netting you much, if anything, at all. You really want to run both at the same frequency to see some of the greater benefits. This would mean you'd either have to overclock your CPU frequency or underclock your memory frequency, or both.

IMO, the safest bet would probably be to buy DDR2-400 that runs at 400 MHz, bump the CPU FSB to 400MHz, and run the memory at its native frequency. This would be a 1:1 speed ratio and would yield much better gains (increase in CPU FSB speed has a much great impact than increases in the memory FSB speed).

However, that's neither here nor there for your particular bad memory problem. It's just something to consider.

FliGi7 said:

Those should work, but what's the reason you keep buying 1066MHz memory? As I showed you above, your CPU clock is running at 5/8 the speed of the memory, so that memory isn't netting you much, if anything, at all. You really want to run both at the same frequency to see some of the greater benefits. This would mean you'd either have to overclock your CPU frequency or underclock your memory frequency, or both.

IMO, the safest bet would probably be to buy DDR2-400 that runs at 400 MHz, bump the CPU FSB to 400MHz, and run the memory at its native frequency. This would be a 1:1 speed ratio and would yield much better gains (increase in CPU FSB speed has a much great impact than increases in the memory FSB speed).

However, that's neither here nor there for your particular bad memory problem. It's just something to consider.

I see, but, at least, I'm gaining some new memory because the other ones, we're crashed. My computer performance was quite good before running 1066 MHz. So if it's a bigger differents, I don't know. But I'll consider it for sure.

I don't gain all the performance I could, but it doesn't crash the computers health. Does it?