i5 4590 voltage

[Stysner]

Hi all,

I upgraded my motherboard and CPU after frying my old mobo with a static shock through the ps/2 port. I went from a Phenom II x4 955BE to an i5 4590, in combination with a Gigabyte H97M-D3H.

Couldn't be more pleased with the rock solid performance, however I have a few questions regarding voltage and XMP.

My RAM (4x4GB Kingston HyperX 1600Mhz) ran at 1300Mhz, so I enabled XMP. It automatically put in the correct timings, as expected, but ran it at 1.7V (rated at the standard 1.65V).

So I tried manually setting it to 1.65, still ran at 1.7. So I lowered it until it did run at 1.64V, but the BIOS setting is 1.6V now. No biggie, rock solid, just a bit weird that there seems to be a voltage offset with the setting.

Now, my question regards the CPU:

Does the 0.7V idle to 1.1V range my CPU runs at now conform to stock voltages? I have no problem with temps, my TX3-Evo won't let it get past 55 degrees (celcius) with the standard fan settings. Which is absolutely fine. But since my previous mobo with the Phenom II on auto gave it 1.4V instead of 1.35V (the CPU ran fine even with 1.3V on stock speeds), I started wondering.

I tried finding voltages for my new CPU, or forums regarding undervolting, but just can't find any reliable source.

Does anyone know the stock voltages of an i5 4590? Are they fine, or does the auto setting slightly overvolt it?

 

[kwa-e]

It is completely fine, I have a stock 4690K and it runs around the voltages you mentioned pretty stable.

AMD CPUs tend to use higher voltages than their Intel counterparts, discluding the 83x0e's

 

[Stysner]

It is completely fine, I have a stock 4690K and it runs around the voltages you mentioned pretty stable.

AMD CPUs tend to use higher voltages than their Intel counterparts, discluding the 83x0e's

Thanks for answering! Mine is absolutely rock solid too, and the temps are more than fine, as stated, but I'm just nitpicky I guess. I don't really trust in auto settings on motherboards, since my previous CPU ran 0.1V too high for months before I even noticed it, and the 1.7V for RAM setting was also a bit off.

What mobo do you have?

 

[kwa-e]

Hover over my (non-existant) profile picture, I'm running it on a Sniper B6 right now on the stock cooler

(I know it's b85, but z97 boards can get stupidly expensive here in the Philippines xD)

 

[Stysner]

Hover over my (non-existant) profile picture, I'm running it on a Sniper B6 right now on the stock cooler

(I know it's b85, but z97 boards can get stupidly expensive here in the Philippines xD)

Wait what? How did you get the BIOS update to run a Haswell Refresh on a B85 board? 😀

Also, noticed HW monitor saying all four cores run at max turbo boost speed (3.7GHz) whilst gaming... I thought that was impossible, only 3.5GHz for all four cores at the same time?! If HW monitor is correct, that would be awesome! 😛

 

[kwa-e]

The Sniper B6 was actually released after Devil's Canyon was launched, and is fully compatible with it out of the box.

I have no idea how the turbo boost's happening, maybe running at turbo your i5's still within its TDP? o-o

 

[Stysner]

The Sniper B6 was actually released after Devil's Canyon was launched, and is fully compatible with it out of the box.

I have no idea how the turbo boost's happening, maybe running at turbo your i5's still within its TDP? o-o

Yeah but then I have won the silicon lottery on this one :O

Maybe it's just a motherboard feature that's on by default. I haven't touched any of the settings accept for boot stuff and the RAM voltage.

My voltages are really steady though (PSU: G550M), and as I said, the temps are really good, better than I expected even. Because it idles (800MHz) at 28 to 32 degrees, with a room temperature of ~20 degrees, and even with the constant 3.7GHz (playing GTA5) the CPU is at 100% constantly, the fan isn't even running on max, and it hovers around 52/54 degrees, max package heat is 55.

Don't know, I'm happy with it though, it wouldn't seem like a huuuge leap from my Phenom, but my Phenom had speedstepping off, OC'd to 3.6GHz, running crazy hot, and still the i5 kicks it's ass in how snappy the OS feels and how it destroys the Phenom in games.

Big AMD fan because of pricing, but SOOOO glad I got an Intel now 😀

UPDATE: just checked, max wattage it pulled whilst playing GTA5 is 63W... o_0 dat CPU.

 

[kwa-e]

Could be, there are some motherboards that seems to turbo the processor much more aggressively than others, and are usually ones produced by Gigabyte.