Posted September 1, 2015 So I lowered the voltages on i7 4790k to 1.15v in search of lower temps in my small case, and yesterday this worked pretty well, lowering the temps and keeping the cpu at 4400mhz during stress testing. I boot up today and the cpu is unable to get above 4397.45mhz, have I damaged the cpu? Bios setting used: vCore [Auto] -> 1.153v Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 It's not supposed to boost above 4.4ghz. Pascal Undervolting topic, get more out of your card with less power! Why high refreshrate monitors look better even without Freesync/G-sync in one image.Stutters, framedrops, "lag". How to provide detailed information with your "bottleneck" question, as well as a few solutions. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 Author no but it used to hit that exactly at the lower v setting, now it its this slightly lower number? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 I am no overclocking guru, but are you not supposed to disable boost and just set it to a speed. Did you not stress test it for hours ? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 Author boost is still enabled, I don't think I'm making myself clear the cpu is running at a stock clock speed, I lowered the voltages to cool it down. I found a stable setting at 1.15v which gave me 4.4ghz stable in prime95 (stock + turbo boost) today I run the same test and it only turbos to 4.397 (system bus appears to be running at 99.94) Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 boost is still enabled, I don't think I'm making myself clear the cpu is running at a stock clock speed, I lowered the voltages to cool it down. I found a stable setting at 1.15v which gave me 4.4ghz stable in prime95 (stock + turbo boost) today I run the same test and it only turbos to 4.397 (system bus appears to be running at 99.94) 4.397 is 3 MHZ SLOWER overclocking and undervolting isnt perfect, but 3 mhz aint gonna make any difference Rigs I've Built The Striker i5 4590 @ 3.7 || MSI GTX 980 Armor X2 || Corsair RMX 750 || Team Elite Plus 8 GB || Define S || MSI Z97S SLI Krait The Office PC i3 4160 @ 3.6 || Intel 4600 || EVGA 500B || G.Skill 8 GB || Cooler Master N200 || ASRock H97M Pro4 The Friend PC G3258 @ 4.3 || Sapphire R9 280X Tri-X || EVGA 600B || 8 GB Dell Ram || Cooler Master N200 || ASRock H97M- iTX/ac The Mom Gaming PC A10-7890K @ 4.4 || iGPU + ASUS R7 250 || 8 GB Klevv DDR3-2800 Mhz Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 boost is still enabled, I don't think I'm making myself clear the cpu is running at a stock clock speed, I lowered the voltages to cool it down. I found a stable setting at 1.15v which gave me 4.4ghz stable in prime95 (stock + turbo boost) today I run the same test and it only turbos to 4.397 (system bus appears to be running at 99.94) Its normal. 3MHz won't make a difference, your being over dramatic Raise the base frequency if it really bothers you, Mine is running some 5.094 or something Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 today I run the same test and it only turbos to 4.397 (system bus appears to be running at 99.94) Set BCLK for 100MHz and disable spread spectrum. That should sort it out. Our Grace. The Feathered One. He shows us the way. His bob is majestic and shows us the path. Follow unto his guidance and His example. He knows the one true path. Our Saviour. Our Grace. Our Father Birb has taught us with His humble heart and gentle wing the way of the bob. Let us show Him our reverence and follow in His example. The True Path of the Feathered One. ~ Dimboble-dubabob III Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2015 Author with regards to overclocking if I ever choose to, I find to keep the temps under 74 I need to keep the volts under 1.18, can I get upto 4.6 reliably on that sort of voltage? Thanks to everyone for their input so far! Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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