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CPU OC leading to GPU Issues


Hey LTT,


So I recently purchased a 1080 Ti (like 2-3 weeks ago), and installed it immediately (naturally).


Some background first: About 4 days ago, I pasted my CPU, as temps had slowly risen to much higher than they were when I built the computer about 2.5 years ago, and figured this was normal. Upon inspection, I think most of it was from the cooler not being tighten enough. So after doing that, I thought I would mess with my OC a little. It was at 4.2GHz @ 1.286v. I decided to switch to adaptive voltage, which will throttle down the voltage when the CPU is not being used 100% (obviously), to help bring idle temps down a bit.


Problem: After changing this, the GPU would only reach about 58% power at most. Clock speeds would reach 1900 something like normal, and it would use 100%, but the limiting power usage would lead to major frame loss (~50% lower than normal). I couldn't figure out what it was until I finally realized it started around the time I changed from manual voltage to adaptive. I switched it back to manual, and it fixed the problem.


So my question is: can a bad CPU OC really cause issues like that? What would have actually been the reason why that happened? I know this might be a bit technical but hoping to get some good responses:)


I didn't really know what thread to put this in, but I figured this would be best since the main issue was the overclock.

My Build, v2.1 --- CPU: i7-8700K @ 5.2GHz/1.288v || MoBo: Asus ROG STRIX Z390-E Gaming || RAM: 4x4GB G.SKILL Ripjaws 4 2666 14-14-14-33 || Cooler: Custom Loop || GPU: EVGA GTX 1080 Ti SC Black, on water || PSU: EVGA G2 850W || Case: Corsair 450D || SSD: 850 Evo 250GB, Intel 660p 2TB || Storage: WD Blue 2TB || G502 & Glorious PCGR Fully Custom 80% Keyboard || MX34VQ, PG278Q, PB278Q

Audio --- Headphones: Massdrop x Sennheiser HD 6XX || Amp: Schiit Audio Magni 3 || DAC: Schiit Audio Modi 3 || Mic: Blue Yeti


[Under Construction]


My Truck --- 2002 F-350 7.3 Powerstroke || 6-speed

My Car --- 2006 Mustang GT || 5-speed || BBK LTs, O/R X, MBRP Cat-back || BBK Lowering Springs, LCAs || 2007 GT500 wheels w/ 245s/285s


The Experiment --- CPU: i5-3570K @ 4.0 GHz || MoBo: Asus P8Z77-V LK || RAM: 16GB Corsair 1600 4x4 || Cooler: CM Hyper 212 Evo || GPUs: Asus GTX 750 Ti, || PSU: Corsair TX750M Gold || Case: Thermaltake Core G21 TG || SSD: 840 Pro 128GB || HDD: Seagate Barracuda 2TB


R.I.P. Asus X99-A motherboard, April 2016 - October 2018, may you rest in peace. 5820K, if I ever buy you a new board, it'll be a good one.

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