heh I thought it was good old unstable overclocking. Had a system ran fine in windows and everything but after a while gaming would always crash, had to drop the clock.
when you buy S2, S1 is included, but if you buy S2, you can upgrade to S2
It's £12 to buy each stage, but you have to have S1 to buy S2, and so no matter how you do it you spend £24 to get S2
And it may be wierd, but thats the problem with games with a lack of physics to stress the CPU (ie NFS )
Its just your overclock isn't stable - happens a lot, thats why people run Prime95 for 12 hours an awful lot
PS - What Intel CPU do you have? (im geussing its an Intel, as to get 3.7 GHz on an AMD would require at least Phase, and certainly wouldn't be stable!)
everything you need to know about buying lfs is found here https://www.liveforspeed.net/?page=shop if you do decide to buy the full s2 licence you will find that it is probably the best £24 you have ever spent. good luck
Back to topic - you dont have any kind of overheating issue. Prescott CPUs cant be overheated to bluescreen. There is something called thermal throttling which reduces CPU load when too hot by adding some empty cycles to instruction queue. And there is also a automatic thermal shutdown that kicks in when CPU core reaches 105 degrees of Celsius. Just FYI, Prescotts run rock-stable when on 95°C, they are only thermal-throttled = slow.
But what CAN be your problem is a PSU. I had some really weird bluesreen issues some time ago. It was wery similar to yours - benchmarks ran 100% OK, some games ran for hours flawlessly, some crashed almost immediately. The problem disappeared just when I downclocked CPU. It was because my PSU wasnt able to power enough my overclocked CPU. Now with new Enermax CPU I can overclock CPU easily without any stability issues.
I have a Prescott 540 CPU, so I know what I am talking about
I had 300w standard psu, I upgraded gfx card and got SuperFlower 430w psu, my computer kept crashing, changed it to Be-Quiet 500w straight series PSU and it worked fine for day, psu died, rma'd it and next sample same thing, now I have Seasonic s12 430w and no problems at all.
When looking +12V line it is now stable, so it was with be-quiet too, but with super flower and 300w who knows what brand +12V line jumped up and down like gorilla in donkey kong.
So lesson is, whatever wattage rating is or how good brand psu is it may cause problems in some way.
Now before I upgraded gfx card I had weird issue, only with LFS, got lot of artifacts and some lockups, that was with stock radeon 9700 non pro, I then flashed pro bios on it and clocked it a bit, guess what, artifacts were gone and no more lockups either.
As JTbo says, overall wattage says nothing about PSU ability to provide enough amps on +12V and +3.3V rails. Just do a few tests on stock-clocked CPU to see if it helps.
BTW, as I have checked the list of the games that run OK on your machine, I noticed that (surprisingly) those games are much more GFX than CPU hungry. LFS is completely different, which would explain why they ran OK.
EDIT - You said Hyper-X, thats a Hiper Type-R, i have the same PSU (only without modular, and its not a Type-R, as it doesn't have the LED's) and its running fine... and thats with 2 HDD's, an overclocked CPU, used to have 2 GFX cards in it as well...
If I presume the PSU isnt faulty and provides what the sticker says you should be OK about this unless you have 4HDDs, 2 neon tubes and 2 GF8800GTX in SLI
BTW, can you get some error message when LFS crashes? Something from bluescreen or anything else...
