Applied the bios update yesterday... it made the bios much easier to use (and a bit faster), but it does not fix the issue.
I believe I'm having the same problem. My system is fine as long as I'm running the distributed.net client, but once I kill it, things start getting flaky. I disabled the settings you suggested, and my computer has been fine so far. I'll know more when I wake up tomorrow morning...
So my system idled fine overnight without rebooting. Since you seem to have narrowed down the problem, how do we notify Intel and make sure they know of the problem and work toward resolving it?
I used their tech support chat feature to report the problem. The more people that report the issue the higher priority it gets on their "to do list". Especially with the release of Win7 looming in less than a month.
It's not just Win 7 that has problems, it's XP x64 and Linux as well.
Then the ball is definitely in Intel's court. Kind of odd how something that big could get through QA. I bought an intel motherboard to avoid these kind of shenanigans.
I've run into a similar issue, I have 2 machines running a i5 CPU on a DP55WB motherboard, both machines either reboot (Without bsod) or just freezes. Have not tried disabling speedstep as yet, as I want turbo mode. Most of these reboot and/or freezes occur while browsing etc.
Does intel have an answer for us on this? Is this motherboard related or cpu? If motherboard I'm considering a swop...
I've googled quite a bit of stuff on this problem, and I've found that at least Gigabyte boards have the same issue. I haven't heard back from intel on the issue I reported yet. Bleeding edge technology is always the same. At least I'm stable with EIST off...
http://forums.tweaktown.com/f69/ga-p55-ud3-i5-750-windows-7-x64-rtm-very-unstable-34410/
I have a GA-P55-UD4 and its stable with EIST on but thats with a i7 860.
What type of memory are you using? I'm using 1333 9-9-9-24 1.5v Corsair. I've found that I can switch EIST on and turn the memory voltage up to 1.6v and its slightly more stable. No BSODs, but World of Warcraft will crash after about 30 mins of use. Switch EIST off, memory back to 1.5v, everything is rock solid for days on end.
Corsair CMX4GX3M2A1600C9 running XMP 9-9-9-24 1.65V
It might just be limited to i5.
I disabled speedstep in the bios, so far so good haven't rebooted since on both load and idle. I have 2x 2GB Transcend (TS256MLK64V3U) DDR3 modules. Have done multiple memory tests no errors found.
On another note, what is the general PSU requirement for an i5 with a nvidia graphics card? Should a 585W suffice?
Power requirements are largely inflated for the masses that buy low quality power supplies. I ran a Core2Duo E8400 (3ghz), 4 GB Ram, GTX260 with a 400w power supply. That computer was by far the most stable PC I've ever owned.
That being said, 585w should be more than adequate even with a bad brand. Watts matter, and amount of amps on the rails matter. I prefer Enermax and Corsair power supplies, they've been very good to me and never undervolt.
