August 27, 20178 yr hey everyone yesterday i benched my gtx 260 with dice. the card is fully modded with ocp, vddq+vdd hard mod and vgpu via software. i have a big issue with the gpu temperature readout, after delid it. it switches between 0 and 168 centigrade every second. this causes a frequency drop to 400/800/300. the card is a very good one. before delid, it does 1420 memory benchstable. can i manipulate the gpu temperature sensor readout or just disable it via bios/hardmod ? my friend had the same issue with a non delidded gtx 280. but the gtx 280 readout is about 4,9 million centigrade. the reaction is the same, frquency drop... regards nico Edited August 27, 20178 yr by Gigelz
August 28, 20178 yr If I remember correctly you can desolder the 8-pin SMD chip that handles temperature control. (Or just cut the VDD pin) It was a long time ago now but I remember a friend did that on his GTX 280 to avoid cold slow on LN2. Might help you in this case too.
August 28, 20178 yr This chip is a 16 pin one. When i get home, i will check the datasheet thought it could be this one as I read that it has a thermal monitor. I cant see/read the others based on TPU pcb photo
August 28, 20178 yr Ah yes Firekiller is correct, it's 16 pin one not 8. This is the actual chip my friend cut off his card. https://www.onsemi.com/pub/Collateral/ADT7473-D.PDF "Remote thermal monitor and fan control".
August 28, 20178 yr Author Great, thanks my friends ! so desolder pin 3 vdd and the chip is out of function ?
August 28, 20178 yr Great, thanks my friends ! so desolder pin 3 vdd and the chip is out of function ? yes. pin 3 should be its power and by cutting/desoldering you keep it off
August 28, 20178 yr Yeah, take care not to break it off if you wanna use it again. The card works without temp monitoring and fan control when you disable it so not the best for every day use. On the other hand noone uses this old card like that anymore...
August 28, 20178 yr Author I will try it this week under cascade. My plan is to solder a small jumper bridge to the points so i can turn it on and off
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