[zacdrew]

The other day a friend of mine (the one that introduced me to OC'ing) stopped by with this great new product he found and had used several times. It is called circuit chiller. Chills to -45*. He said that it would not conduct electricity and was safe to use. I was told just to set it up to spray through the heatsink. He used it to find out what he could crank out of his 8600GT. He gave me 2 cans and asked me if I'd use it to bench my crad to see what it would operate core and shader clocks at. So being a rather energetic noob to this stuff I sat down and started today at 4pm and started. I got to 925/1795 with mem at 975. Definetly respectable as I was concerned. My core temp was at 12* while ambient was -24*. I was happy. I reverted back to stock clocks and shut off the chiller. Then my computer locked up. I rebooted fine. Then it locked up again. I took out the card and everything runs fine. But I noticed when I took the card out that it was as hot as I have ever felt it. Any ideas what happened. The card will not post. All the time I ran some quick GPU tester and it was under full load producing 550fps. Sorry for this being long winded but I wanted to make sure that I had everything.

[Conumdrum]

Your Mem and Vrams are prolly toast. You just sprayed it on the GPU instead of the whole board? And possibly the giant temp swings have made the board/chips contract/expand breaking down a circuit trace.

[jmh547]

do you have another video card you can test with?

[zacdrew]

Well that makes sense. I ran most of it through the heatsink but made sure the board was cold to the touch. While I was benching the whole card was ice cold. Every part you couldnt hold on to it was so cold. Nothing compared to LN2 or DI. The card was still cold after first reboot. But second boot it got HOT. Mem and Vrams are probably toast, but maybe I'll catch the upgrade bug soon.

[zacdrew]

No I dont have another card I can test with but I will get one tomorrow.

[jmh547]

Originally Posted by zacdrew

Well that makes sense. I ran most of it through the heatsink but made sure the board was cold to the touch. While I was benching the whole card was ice cold. Every part you couldnt hold on to it was so cold. Nothing compared to LN2 or DI. The card was still cold after first reboot. But second boot it got HOT. Mem and Vrams are probably toast, but maybe I'll catch the upgrade bug soon.

were you touching the board when it was on? Isn't that a little dangerous? (for the Video card)

[zacdrew]

Originally Posted by jmh547

were you touching the board when it was on? Isn't that a little dangerous? (for the Video card)

Yes I was oops. But when I touched it I grounded myself to the case first then only touched the tops of the heatsink screws. I dont know if grounding help but I've alwasy been told touch the case before you touch anything else.