i have a DFI x48 lp lt 4gb of ram 1066 OCZ (it shows 667 i tried on other pc s but no change),320 GB HDD MAXTOR ,inno 3d 9800gtx+ freezer,intel quad 9550 and a 680 watt real power(green).in last 1 year i have seen that my pc restarted suddenly.on of them when i was playing evil 5 and the scene was not crowded or heavy for pc(i was in room) the other one happend when i was playing battlefield bad company 2 and i pressed escape to answer the phone when i backed i saw that it had restarted it self.whats goin on?i appreciate anyone who is anywhere at anytime.
Your ram is running at 667mhz because it is running a 1:1 ratio with your CPU. Your CPU runs at 2.83ghz which looks like this
8.5 x 333 = 2830mhz or 2.83ghz
(multiplier) x (Base Clock)
Now the processors bus speed is 333mhz running quad pumped which gives you a FSB of 1333mhz. Your RAM will run at the same speed as the base clock in a 1:1 ratio which is 333mhz. You have DDR RAM stands for Double Data Rate so 333 x 2=667 so that is why your ram is running at 667mhz. You can go into bios and change the ratio to run it faster but it really does not effect the performance by much. The reason most people get the higher speed RAM is for overclocking stability when you start pushing the FSB higher and higher you need RAM that can handle it. When you see it say DDR2 1066 that is not the speed it will be running at that is just the max that it can run at.
Now as for your games restarting I dont have an answer you can try running MEMtest or Prime95 to check the stabity of your system but sometimes games justt crash I play Battlefield 2 and It has crashed a few times for no reason that I can think of it sometimes just happens.
We have had quite a few posts and questions about pc's either restarting or crashing. There is a lot of speculation about pc components but the actual common denominator is that it happens while playing games. Of course that could be a coincidence because Tom's Hardware has a lot of members who are gamers.
So you are saying that your PC has restarted TWICE in the last year, and you are worried? Your temps seem OK.
If you really want to know if your PC is overheating then get ORTHOS, Furmark and CoreTemp. Run them all at the same time, and see what happens
2 restarts in a whole year is nothing. I wouldnt worry, probably a software error. Fallout 3 and Crysis crash for me sometimes. Sometimes GTA4 freezes. Sometimes console games freeze. It's normal, think of all of the numbers flying around inside your PC's virtual mind when running a modern game. Sometimes things go wrong. Is almost inevitable.
I wouldnt panic about it, just save often!
temps seem fine. Is it just restarts and no blue screens?
*** EDIT*** Oh man, i was under the impression that you experienced restarts all the time. If it only happened 2 times over the last year, i would say don't worry about it. It is uncommon but not out of this world... How long have you had that operating system installed?
If you haven't done so, reset your RAM settings in the BIOS to match the settings printed on the RAM label. Then run the memtest86+ CD image at boot (about 1/2 down the page) - press the ESC key on POST to access the boot device (select CD). Many random re-boots are caused by unstable RAM, and it is always difficult to diagnose.
Let memtest86+ finish it passes, or shut it down if you get lots of errors, and adjust the FSB, RAM voltages and RAM dividers in BIOS until you get settings that result in the RAM passing memtest86+. When you are stable save the settings to CMOS Reloaded.