Good thing is that it still displays, got worried when you ran it at 200°C because at my preference it's a bit high though you only ran it at 9mins. which I can say is incomplete but I am somewhat relieved and believe you can redo it over. BTW what is your location and how is the ambient room temperature there. I'm asking so we can have a base temp. to set the oven cooking temperature.
I normally only use 180° C / 356° F at total of 13 minutes and the full 30 minutes to cool the oven down to room temp. with an inch only opening. The reason is to do a pseudo heating ramp the heat goes up to near melting then drops, then heats up again for final then gradually drops to cool at room temperature. The ramp is lengthened and spanned at almost 45 minutes overall in-oven time.
The board checking through magnification to me is very important, it's part of the pre-check before and after cleaning. Also alignment and position is a norm. nowadays in my pre-baking process. At bad times when you may also need to run it using a tester or do a rework when replacing individual components, . . . meh just part of my routine of thoroughly searching for the culprit before doing a BGA or baking.
The solder smell is unavoidable, our kitchen oven which I use is no longer fit for baking food. Because of the countless times I've pre-heat pcb boards on it, I believe it's already contaminated even after countless cleaning.HEAT:
The post testing is good aside from the lockdown, was it a bluescreen (BSOD)? Normally it shouldn't but since you've mentioned artifacts still remain, we can say it's incomplete or half-baked. Overheating may be the culprit, you need to check the heatsink if it's properly flattened on the GPU. Also try testing by jumping into the BIOS and check the heat temp. by touching the heatsink only. You may gauge if it's getting hot or it's hot already or its very hot. The norm is that it's just warm or cold if your room temp is under 20.
Regarding putting things back, do make sure the board is leveled use a book as base for the board and make sure when putting the screws back you place each screw 1 or 2 turns only not tightening it all the way then putting other screws starting at the center and going around not at a straight line. Then when all screws are placed start again from the center going around outward, also this is important do not over torque the screws just a small resistance is enough.
Cleaning is very very important, I would suggest 99% IPA and not the off the shelf one's, or diswashing liquid and distilled water. Use a soft bristled toothbrush, or just a plain toothbrush will do. If you have a vacuum cleaner that can be plugged as a blower that is perfect. Just run it as a blower several times on different directions, before you do IPA or liquid cleaning. Also it's good for drying, just a note do not use a hair dryer unless its like 1 feet away from the board.OPTIONAL:
Going back, after baking you've got the option to test without the heatsink but only upto the BIOS for a few seconds after that it will crash just turn it off quickly. But what you're looking for is artifacts if none, you may continue testing but reinstalling the heatsink and fan without thermal paste. This next test is only good upto your operating system desktop (if windows go on safe-mode only), then check again for artifacts you should shutdown after several minutes. Also get an application that monitors video card temp its very handy.ARTIFACTS:
You have the option not to open games, but you need to run multiple windows or video's to check the processing of your GPU. Though running 3D applications or games if preferred, the purpose again is just to look for those artifacts or screen anomaly.Now you decide on which phat you will take, MECH WARRIOR !!!Edited by psychophat - 3/10/14 at 7:53am