I’ve done some naive overclocking of my watercooled 840 at 3.6Ghz at 40, which is about the temperature it was running before overclocking– This is run UD agent as the load.
This article says they overclocked the 840 at 3.5Ghz at 70 degrees, but says water cooling can get you to 3.7 or 3.9Ghz
This article reports instability at 77 degrees at 4.0Ghz. They said 3.8Ghz runs fine with an air cooler.
This article reports stable at 4.04Ghz with a water cooler and 3.8 without a water cooler.
This article reports stable at 4.0Ghz with a quality air cooler, and instablity at 4.2Ghz.
This article reports stable at 3.7/3.8 air/water and instable at 4.4 water cooled.
Here is an opinion that the maximum temperature for 840 is about 70 degrees
Intel says the 840 should be at most 69.8 degrees.
I bought a $40 (with shipping) Windows CE terminal that can connect to Windows XP pro. I used a monitor I got from the trash and a keyboard and mouse left over from a previous computer.
I set it up in the Kitchen, the biggest complain is that the wires are all over the place. I could fix it for $30 (with shipping) for an xbox style wireless adapter.
The monitor is too bulky. Fixing it would cost $110 (with shipping) to replace it with an LCD monitor.
The keyboard is too big and not water proof. Fixing it would cost $25 (With shipping).
So for $165 I could have an optimized kitchen computer. It’s the accessories that run up the bill.
I’m researching graphics cards.
I can either start with my budget and pick a graphics card, but after awhile I decided if was to choose a budget, I’d choose zero. So that won’t work.
I noticed most games demos run on my machine already, albeit not at top resolution or with all the options checked. Plus, even when these options are checked, the game doesn’t change that much. In otherwords, the games are targeting the low end. They are not targeting the high end and degrading to deal with my machine’s spec’s.
I did hit two games that I am highly interested in that I can run on my box, Battlefield 2 and Elder Scroll IV: Oblivion. These games have some fantastic graphics. The former is multiplayer, an important consideration, and the latter is single player but has outstanding graphics.
I think I will pick my graphics card based on the above two games.