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

Mine is L420B864... Not sure if it's a decent chip or not as i'm running it stock for now. All I do know is the voltage hits 1.263v under load when it's boosting to 4.4GHz (voltage stayed the same when I tested auto OC to 4.6GHz).

Also, does anyone here know roughly what the IMC (memory controller) voltage should be at? Is it usually higher than the actual RAM voltage? My Asrock OC software shows DRAM as 1.500v and other software like Speccy don't show DRAM but instead show Memory Controller as 1.696v... Is this high?
 
The only voltage id expect to see higher than dram v is cpu input voltage. This is usually around the 1.7v mark at stock. The memory controller voltages on my board are listed as Sa, ioa and iod. Theese I have set manually at 1.2.
 
setter said:
The only voltage id expect to see higher than dram v is cpu input voltage. This is usually around the 1.7v mark at stock. The memory controller voltages on my board are listed as Sa, ioa and iod. Theese I have set manually at 1.2.
Click to expand...

My CPU input is usually around 1.8v by default which I guess is normal. I have a voltage at 1.696v for something, but I don't know what it's for... Speccy shows it as memory controller and HWMonitor shows it as VIN1 and VIN11. Could just be a phantom reading or glitch? I think my SA, IOA AND IOD voltages look ok, although the Asrock board applies small offsets to each one by default (everything on auto in the bios with no overclocking)

Does everything appear normal in these screenshots? The 4790k is my first Haswell chip so i'm not 100% clued up. Cheers :):











EDIT: Glad I looked at the HW monitor in the bios as I didn't realise one of my case fans wasn't spinning!
 
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No idea what that memory controller one is tbh mate. Bios voltages all look good, though your chassis fan 1 reading seems a bit weird at 9820 rpm. Just loaded up hwmonitor on mine and VIN1/11 isnt listed.
 
setter said:
No idea what that memory controller one is tbh mate. Bios voltages all look good, though your chassis fan 1 reading seems a bit weird at 9820 rpm. Just loaded up hwmonitor on mine and VIN1/11 isnt listed.
Click to expand...

Yeah that chassis fan reading tends to fluctuate now and then... It usually shows something between 1000-2000rpm. It does the same in my older PC with the Arctic Freezer 7 Pro when it spins down (suddenly show something ridiculous like 985947539rpm). The same thing happens with the Gigabyte R9 280X in my other PC when the fans spin down below 25%.

What board are you using? Mine is an Asrock Z97 Extreme4. Maybe other users with the same board (or even the Extreme6 & 9 versions) might have that strange 1.696v reading?

EDIT: I can see you use an Asus board (didn't look at the sig :rolleyes:).
 
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I have a similair issue with asus ai suite 3 regarding fans, it doesnt read all my chassis fan speeds. Actually has 2 readouts for chassis fan 1 lol. But ill soon be moving all my case fans onto a manual fan controller.

Have you tried any overclocking yet?
 
setter said:
I have a similair issue with asus ai suite 3 regarding fans, it doesnt read all my chassis fan speeds. Actually has 2 readouts for chassis fan 1 lol. But ill soon be moving all my case fans onto a manual fan controller.

Have you tried any overclocking yet?
Click to expand...

I tested the auto OC function for a bit and the PC ran at 4.6GHz without any voltage changes or issues (cores still hit 1.263v under load). I didn't do any extreme tests, just played BF4 for an hour or so. It could probably OC a bit higher but it seems fast enough at stock for now :).

The backside of the motherboard gets noticeably warmer than my other PC which is running a 3770k (it even warms up the case side panel). The CPU cooler backplate is very hot to the touch after a bit of gaming, although the CPU itself tends to hover around 58c when gaming.
 
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Running at 4.7ghz here for daily use, (1.300 vcore, 1.800 input voltage). Only thing ive stressed it with is asus real bench which gets to 81c. In games it will hit anything from 60 to 74c max, depending on room temp and two heat dumping gpu's in the case.
 
setter said:
Running at 4.7ghz here for daily use, (1.300 vcore, 1.800 input voltage). Only thing ive stressed it with is asus real bench which gets to 81c. In games it will hit anything from 60 to 74c max, depending on room temp and two heat dumping gpu's in the case.
Click to expand...

I'm running a pair of GTX 780s with blower type coolers (KFA2 & MSI reference cards) so all the hot air gets blasted out the back of the case (heats up the room :D). I completed a short test with IBT running stock and the CPU core temps reached 74c. The room is fairly cool at the moment too. My CPU cooler was only £30 and it's doing a great job! It's the Alpenföhn Matterhorn Pure with Arctic MX-4 paste applied.

Gaming usually sticks around 58-60c.
 
Good temps for ibt, mine will hit 94c at stock under an alpenfohn k2. Hence i only use real bench for stability testing. Seems you have good headroom for clocking.
 
Hey all, got a bit of a weird one. Been trying to clock my 4790k a bit higher than 4.4Ghz and so far got to 4.6Ghz at 1.25v (got an L3 chip :() This passes all benchmarks I throw at it (IBT, Prime for 2hrs, realbench) but keeps failing on playing bf4 and war thunder. Should I just keep adding in voltage to stabilise or is something else going on?
 
setter said:
Good temps for ibt, mine will hit 94c at stock under an alpenfohn k2. Hence i only use real bench for stability testing. Seems you have good headroom for clocking.
Click to expand...

That's a better cooler than mine, so my 4790k will probably throttle with IBT if I overclock it to match yours.


dimonakid said:
question:
iv noticed that during IBT, the Current temp Fluctuates between 60-80 & 70-90.
its 60c for couple of sec, and then 80c for a couple of sec.
is this normal?

here is a video of the fluctuation:

https://www.youtube.com/watch?v=XoZLuO3Zp4s&feature=youtu.be
Click to expand...

I don't think mine did that, but I did hear the CPU fan ramp up a bit with each pass/test using IBT.


cwgk91 said:
Hey all, got a bit of a weird one. Been trying to clock my 4790k a bit higher than 4.4Ghz and so far got to 4.6Ghz at 1.25v (got an L3 chip :() This passes all benchmarks I throw at it (IBT, Prime for 2hrs, realbench) but keeps failing on playing bf4 and war thunder. Should I just keep adding in voltage to stabilise or is something else going on?
Click to expand...

Not really sure what the problem could be. Maybe something else has changed and is causing the GPU to crash? I'm thinking this as it appears to only crash during gaming and not during the CPU stress tests (where the GPU isn't used).
 
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Hi all,

I got my chip a few days and I'm stressing it at the moment using a asrock extreme 4 board

I've only changed vcore to override in the bios and cpu speed to 4600mhz

To get stability I need 1.262 volts, does this seem normal?

4.7 isn't stable at 1.300 and since I'm using a air cooler I don't really wana go above that, however at the moment temps are fine using the deepcool lucifier.

Are there any other voltage settings besides vcore that might help stability? I run 8GB of ram at 1333mhz at 1.57 (auto) in bios

Thanks a lot, I read every page here so didn't see anything, maybe 4.6 is my limit
 
So, I reset my 980s to stock and still having the same problem. My current 24/7 runs at 4.4Ghz on all cores with 4.4Ghz cache at 1.215v for each.

As soon as I try going up to 4.6Ghz, nothing is stable at all while gaming, even going up to 1.35v - though passes benchmarks and stresses (realbench, xtu stress, p95) easily at 1.26v

Should I try fiddling with I/O voltage and the others ones I've never touched before?
 
mrclocky said:
Hi all,

I got my chip a few days and I'm stressing it at the moment using a asrock extreme 4 board

I've only changed vcore to override in the bios and cpu speed to 4600mhz

To get stability I need 1.262 volts, does this seem normal?
Click to expand...


My CPU hits 1.263v when running stock (everything left on auto in the bios). I also have the Asrock Z97 Extreme4 board.


mrclocky said:
I run 8GB of ram at 1333mhz at 1.57 (auto) in bios
Click to expand...

What is the specified voltage for your RAM? Mine has the XMP profile enabled (1600MHz) and is set to 1.5v by default in the bios.

I don't suppose you could do me a favour and run a utility called "Speccy" and let me know what voltage it shows for the memory controller (in the motherboard section) please? Also try running HWMonitor and see what voltage is shown for VIN1 and VIN2.

https://www.piriform.com/speccy/download

Cheers :)
 
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Hi Powerpie, I left my ram on auto, its rated for 1.5v and 1.57 in the bios I believe. Need to check.

Here's the stuff you asked for

xpzb7p.png
 
cwgk91 said:
So, I reset my 980s to stock and still having the same problem. My current 24/7 runs at 4.4Ghz on all cores with 4.4Ghz cache at 1.215v for each.

As soon as I try going up to 4.6Ghz, nothing is stable at all while gaming, even going up to 1.35v - though passes benchmarks and stresses (realbench, xtu stress, p95) easily at 1.26v

Should I try fiddling with I/O voltage and the others ones I've never touched before?
Click to expand...

you should check the nvidia driver forum, more users reporting the same thing.

here is the latest post from 6min ago:

2215529827.png
 
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