On Apr 13, 8:41 pm, Paul <nos...@needed.com> wrote:
> bill wrote:
> > I'll try to make this short, but need to give all the details,
> > so......
>
> > i have basically a gaming system for my wife. Built it for xmas and
> > because i went high end with video card, i only got 2 gigs RAM. For
> > these few months, system has been ROCK SOLID, never a crash, fast as
> > fast......everything great.
>
> > Found RAM, same type i have in, had rebate going so i picked up
> > another 2 gigs.Shortly after install, system would kick out of WOW and
> > back to desktop, giving memory error. You could always relaunch
> > without reboot and launch WOW again till it happened again. Pulled
> > new 2 gigs and system went back to flawless operations.
>
> > Downloaded free memory tester (http://www.memtest86.com/) and did some
> > testing. I decided to do a baseline test using only known good 2 gigs
> > ram. Test fails hard and locks up system.Move 64k block test. And this
> > was with first 2 gigs ram that works without errors.Swapped ram with
> > new, was able to quickly isolate one defective chip, other seems good.
> > NOW back to old ram that works flawless, installing both sticks, tests
> > fails as stated above.BUT, if i take system down to 1, 1 gig stick and
> > test one at a time, both sticks pass, without a problem, multiple
> > tests. IF i move one of these sticks to memory slot 1 instead of zero,
> > they still test fine. Only when both sticks are in does memory test
> > fail.
>
> > And now as i writing, wife informs me my flawless system just rebooted
> > on it own, FIRST failure every. This is 1st ram, so i just swapped
> > slots, but not ram. Moved ram in slot 0 to slot 1 and vise visa. SEEMS
> > to be doing fine again, not reboots for over 3 hours.
>
> > someone got some idea's??
>
> Each generation of memory, is supposed to be improving on the previous
> generation, in terms of the memory bus and sensitivity to loading.
>
> Some of the original DDR2 tests, with two sticks versus four sticks of
> memory, showed that only a very slight change of timing was necessary,
> to get the same level of stability. Something along the lines, that
> if two sticks ran 5-5-5-15, four sticks might run 5-6-5-15. The first
> number is CAS, and has the largest effect on performance, but CAS manages
> to stay the same.
>
> DDR2 chips have ODT or "on-die termination". Those terminations give the
> hardware more options for properly terminating bus signals. There are
> other tricks as well, for improving signalling.
>
> Now, that being said, later motherboards have come out, where one slot of
> the two on the channel, seems to work better. I don't know why this would be
> the case, but there is that possibility.
>
> Memory is now dirt cheap, and with that dirt cheapness comes a need to
> make money. About the only thing you can cut corners on, is test time.
> I'm sure there are some memory products out there, that aren't tested
> at all (solder and ship).
>
> Possible reasons for your problems:
>
> 1) Vdimm not high enough for error free operation, at the speed you've
> selected for the memory bus. 1/8V is nominal. Products usually mention
> a max or suggested value, like 2.0V or 2.1V etc.
> 2) Accidental overclock of memory, while overclocking processor. Use CPUZ
> from cpuid.com to verify that the settings are correct.
> 3) Overheating Northbridge. Overheating processor. Use Speedfan or the
> manufacturer provided hardware monitor utility, to check what sensors
> have been provided. Stick a finger on your heatsinks (including chipset).
> If you burn yourself on anything, fix it.
>
> You can also check the Newegg reviews for the product you bought, to get
> some idea what results other people are getting with the product in
> question.
>
> For further help, state motherboard brand/model number, CPU type, memory
> brand and model number, CPU and memory speeds (3.0GHz core, FSB1333,
> DDR2-800 running at DDR2-800 5-5-5-15 etc). You should be able to get some
> of that info from CPUZ.
>
> Paul

Will take until monday evening for me to post those results. As far as
temp, everything is monitored and watched, cooling fans on everything
with built in temp monitors, watch those carefully, nothing out of the
normals.This is a link to my system, but i didnt get memory, will post
link for memory under:

http://www.tigerdirect.com/applicati...=P450-9102%20N

RAM:
http://www.tigerdirect.com/applicati...?EdpNo=2882686