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***Intel i7 4790K Owners thread***

I've even tried upto 2.05v input voltage but made no difference when trying for 4.8GHz so best to leave it on auto.

What sort of errors have you been getting? Could be another setting. I've had to bump sa and io a bit too, even though I'm just on 8gb of ram. Anything lower than 1.200 on theese and I get memory related blue screens.
 
Upgraded to Win10 today, so thought I'd try and push for 4.7Ghz @ 1.3V at the same time :) Running stable, if a little bit hot on my H60!

What sort of heat? I used to have a H50 a few years ago and went back to fan cooler as it was really hot.

My 4790k also gets rather toasty when running real bench. Its at 1.28v and the benchmark on infinite loop gets to 89c

Trying to get my other fan working for push pull on my noctua nh-u14s at the moment (with one at 1500rpm and the other at 1200rpm there is a high pitched annoying whine)

IBT and Prime take it to 100c (realtemp and hwmonitor) so have sacked these test off!
 
Some versions of prime and ibt will get to 100c at stock, so definitely don't use them when clocking. 83c is my max in real bench. Cooler is an alpenfohn k2 with dual 2350 rpm corsair sp pwm fans. Benched in 3dm11/fs at 4.8 but not stable for gaming.
 
I've never even touched the Input voltage which is set to "Auto" which registers at 1.9v, only ever modified the core voltage. Currently at 0.015 positive offset, comes in at 1.234 when putting the CPU under load. 4.7Ghz. Temps max out at about 70C when benching with realbench.
 
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What sort of errors have you been getting? Could be another setting. I've had to bump sa and io a bit too, even though I'm just on 8gb of ram. Anything lower than 1.200 on theese and I get memory related blue screens.

I got blue screens or just complete restarts. I gave up after a while since 4.8GHz was a no go unless the Vcore was 1.35V+. Happy with 4.7GHz since just 100MHz more for a fairly large voltage bump is just not worth it.

At the moment I'm on 4.7GHz with just the adaptive voltage offset set to +0.05 in bios. Haven't really set anything else at all now.
 
Is 4Ghz uncore ok for a 4.8 OC?
I dont bother clocking the cache/uncore either for normal use. I have done so for a few benchmarks though. In an ideal world you want a 1-1 ratio with cache and core, 48/48. But it's generally reccomended to run the cache multi 3 levels below core for greater stability, ie 48 core, 45 cache.
 
I dont bother clocking the cache/uncore either for normal use. I have done so for a few benchmarks though. In an ideal world you want a 1-1 ratio with cache and core, 48/48. But it's generally reccomended to run the cache multi 3 levels below core for greater stability, ie 48 core, 45 cache.

Are right. I have my clock ratio on 47, uncore on 47 and all 4 cores on 47.

This was recommended in an overclocking guide. Why is it better stability to set lower uncore / lower core clock on different cores?

The defaults on mine are
core 1 44
core 2 44
core 3 43
core 4 42
 
Decided to keep hold of my 4790K and Z97 board. I was really tempted by X99 however I can't justify it when this one works fine.
Not the best chip but I've got a happy and cool 4.5Ghz OC at around 1.25v~
 
Yeah I was expecting a cooler CPU than the 8320 I had used a while back ( Idle 34c under load 64c )....I was thinking of maybe sticking some other fans on the rad ( some 120 eLoops )...see what difference that makes if any

My 8320 was under water and never went over 40-45c, 4790k I've seen past 50c - gave me a bit of a :eek: moment at first but water temps are still ok and the block's definitely seated properly
 
Thought I would finally grace this thread....
Had to RMA my old 4790k which wasn't a great clocker and was on 4.6ghz @1.225v
(Hence no post before)

My replacement is a bit of a beast though!
CPU-Z Validator result there and although it won't do much at those volts I don't want to push it so settled for 4.8ghz @1.3v (will likely get this down over the next few days)
 
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