Ram @1600Mhz causes system instability

[maniac]

So, in the past couple of days i started playing with the bios (after a lot of research ) and I set most of the settings manually instead of leaving them on auto so that i have more control. Then I started experiencing stability issues especially when doing something graphically intensive, It would usually crash the driver or just shut down completely. It usually crashes in the same instant i run Furmark

After setting everything back to auto and changing the settings one by one i found that the ram running @1600Mhz causes this. So i ran it @1333Mhz and now everything is running smoothly. This is the ram --> http://www.gskill.com/products.php?index=252. So it is supposed to support 1600. yes the voltage and timings are all manually set to factory settings, nothing is overclocked until i figure why it keeps crashing.

Thanks in advance
Maniac

 

[Ru5ty_t00l]

try to raise the ram voltage and see how it works

 

[Josh Weston]

For one, keep away from Furmark!
The newer GPUs, and this includes the 580, I believe, have code which tells them to throttle/crash/shut down etc. whenever they recognise that Furmark is being run. It used to kill cards a little too nonchalantly, and so steps were made to stop this from happening.
Also, what happens if you drop everything back down to 'auto' settings?

 

[jamesriley94]

May need to increase the vccsa and the vccio - only slightly though

 

[maniac]

try to raise the ram voltage and see how it works

When running @3.2ghz, raising the dram voltage to 1.6 (from the rated 1.5) helped as i ran 3dmark vantage and played some gta iv fine without problems. still doesn't make sense to me as it's rated at 1.5v to run @1600Mhz.

For one, keep away from Furmark!
The newer GPUs, and this includes the 580, I believe, have code which tells them to throttle/crash/shut down etc. whenever they recognise that Furmark is being run. It used to kill cards a little too nonchalantly, and so steps were made to stop this from happening.
Also, what happens if you drop everything back down to 'auto' settings?

But when the ram is @1333 or @1066 furmark runs perfectly fine, it starts crashin only when i run it @1600Mhz. when i set everything to auto except the vcore due to unnecessary heat reasons, it runs the ram @1066Mhz

May need to increase the vccsa and the vccio - only slightly though

Dont know what are those, probably something from the bios but do they have other names maybe?

 

[jamesriley94]

Umm, not really, they should be under voltages.

dont forget, the memory controller is in the CPU - that's what vssca and vccio do - increase the voltge to that. If the RAMs rated to go that high and it cant - it's usually to do with the memory controller in the cpu.

 

[maniac]

so, i just gave up for the time being and set everything to auto except the vcore as it causes too much heat on auto. My i7 950 is running @3.2Ghz at 1.025v, is it possible that the vcore is too low so it keeps crashing?

 

[Ru5ty_t00l]

1.025 too low. what's the vcore under full load?

 

[maniac]

1.025 too low. what's the vcore under full load?

when running prime95, cpu-z shows 1.024 on the vcore

 

[VengeanceUK]

try setting the vcore to around 1.2

 

[maniac]

try setting the vcore to around 1.2

Currently running at 1.2 vcore, still no luck, crashes within the first frame of furmark

Bios is set on XMP profile, no overclock just stock settings
Seems as adding voltage doesnt help except to get higher temps and i'm pretty sure 1.025v is enough for my cpu as I ran 4 hours of prime95 without any errors

 

[Ru5ty_t00l]

why do use fumark?
try heaven benchmark or similar

 

[maniac]

ok i think now i can start to panic :/
now i set the bios completely on auto ( even the vcore )
i got a BSOD after about a minute into heaven :|

 

[jamesriley94]

you tried clearing the cmos? reseating the card and updating the BIOS?

 

[Ru5ty_t00l]

let me ask u sth .
when did u start having instability issues? did u install any games or programs lately? I had a completely stable overclocked cpu at 4.2Ghz and when I installed max payne I got bsods even while loading windows. uninstaled it and got rid of bsods.

 

[maniac]

let me ask u sth .
when did u start having instability issues? did u install any games or programs lately? I had a completely stable overclocked cpu at 4.2Ghz and when I installed max payne I got bsods even while loading windows. uninstaled it and got rid of bsods.

it all started when i set up most of the bios settings manually,but now everything is the way it was before with everything on auto, it's not a software problem as i did a clean windows install 3 days ago
I'm starting to think it's faulty ram :/

 

[Josh Weston]

As James said, try clearing the CMOS. It may also be worth seeing if there's a new BIOS out for your motherboard. May also be driver updates that would be worth installing.
http://uk.asus.com/Motherboards/Intel_Socket_1366/P6T_SE/#download - a link to what I believe to be your motherboard, with all the downloadable updates.

 

[maniac]

ok so i updated the bios and set everything to auto and it didn't crash this time yay
then as i wanted to test it further i set the memory profile to xmp but crashed again within the first few seconds of heaven :/
then again i set all bios settings manually except the ram speeds which i set to 1066mhz instead of 1600 and i ran heaven benchmark without any hitch.
but still the problem lies there

 

[Ru5ty_t00l]

did u run memtest m8?

 

[VengeanceUK]

it sounds like the mobo isn't liking the xmp profile on your ram, can you or have you tried setting 1600 manually?

if that fails, try memtest+ 4.2 as sounds like there may be a dodgy stick of ram