Random freezes with windows 7 - 64 bit

Hmmmm,

Things just get stranger and stranger!

Not sure who is using OC ram and Asus Mobo with i7 or i5, but I have a reasonably stable system by adjusting ram voltages.

Here is what I have done.

Set my OC profile to XMP (My ram supports this @1.65v 8-8-8-24-2T), set my IMC to auto and my dram voltage dropped to 1.55v, I did try 1.5v but this fell over as soon as I started Firefox with wmp too, but setting to dram to 1.55v and imc to auto still gives me 1600 and seems to be very stable, running Prime 95 for 5 hours, with wmp and firefox about 30 tabs and cpu-z with resource monitor to monitor cpu and ram frequencies.

One thing I have noticed dropping dram voltage to 1.55v is that the I am still getting speeds upto 3.6Ghz from turbotech but cpu does not drop below 1.2 as it used to and cpu temp is still around 21 -23 c idle and 46 - 53c full load, also no gfx driver not responding something that used to happen at least once a day, which usually led to freeze shortly after.

I still have 8-8-8-24-2T timings on ram too.

I appreciate that it is early days yet, but this is the first time from a cold boot that I have not had a freeze within 10 minutes as I usually did.

Something new to try I guess, I will keep you updated, though I should have my new crucial ram tomorrow but may hold off installing for a few days to see how I get on with these settings.

Can anyone recommend a decent game demo or full that I can download to push to limits?

Cheers and good luck to everyone with this most irritating problem

Howdy,

all running fine - not a single issue since I put in the new ram.

MW2 - call of duty-modern warfare 2 - :) fairly intensive game so putting the pc thru it's paces.

Ram was bought from ebuyer.com - http://www.ebuyer.com/product/166995

Manu # - CT2KIT25664BA1339

let me know how you get on.

k

Just ordered mine too, so fingers crossed.

Although my ram passes Memtest, all the symptoms point to a memory or psu problem.

I have already upgraded psu so can't be that.

It makes me wonder that because on the new i7 8x0 and i5 processors control the memory and gfx and the fact that my processor is forever dropping to about 1153 and going up as far as 3688 and the fact that the i7 and i5 don't like voltages over 1.65v for ram, I am thinking that when the turbo kicks in for processor it must have to raise voltage for ram too taking it over the 1.65v without being over-clocked, I do not know this as fact I am just surmising, perhaps grasping at straws, this thing has me baffled, I have friends running core i7 and i5 and Win 7 32 and 64 bit without any of these problems, then again they were sensible and bought prebuilt systems whereas I opted to build my own system as I have done for the last three builds.

I have googled this problem and it does seem specific to Win 7, but for those who post their specs, the vast majority are using over-clocked ram i.e over 1.5v as starting point.

Maybe Win 7 has a memory management issue, I really do not know, but ram has to be my last choice, I like Linux and have run stable for days, in fact it never crashed at all, and the crashes do seem to happen on Windows when there is a spike for the processor and I see it going over 3Ghz, something to do with intel turbo-tech I think.

The spikes happen when booting up, I watch in cpu-z the speed of cpu and wait till it drops to 2.9 before opening anything, they happen when an alert pops up from the task tray, one of these has spiked cpu up to 3.5Ghz, that can't be right, perhaps a direct x issue and believe it or not when opening firefox with multi tabs, the spike again is very big with pages running flash, I hate the fact that so many web pages use flash now and we are all intrinsically tied to this technology like it or not and they do not seem to be in a rush to release a 64 bit version anytime soon.

Microsoft seem to pretend there isn't a problem or it is nothing to do with them, and point to the many who are running windows 7 without problems.

Motherboard manufacturer just point to their QVL list and claim it is nothing to do with them.

I hope this problem get sorted soon

I will keep you posted

BlokeUK, I switched to Windows Classic desktop and within 20 minutes had another freeze, so that didn't fix it for me. An interesting thing was that once again a Windows Live Messenger alert window was attempting to fade away, and the really interesting thing is that the alert window seems to ignore the Windows Classic settings - it has a semi-transparent border, not the hard-edged gray border of Windows Classic.

Howdy,

all running fine - not a single issue since I put in the new ram.

MW2 - call of duty-modern warfare 2 - :) fairly intensive game so putting the pc thru it's paces.

Ram was bought from ebuyer.com - http://www.ebuyer.com/product/166995

Manu # - CT2KIT25664BA1339

let me know how you get on.

k