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Discussion Starter · #1 ·
I'm looking at these 2 boards for a few lower-$ workstations -- does anyone have experience with either yet?

http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z77V_LE/#overview
http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z77V/#overview

My plans are 3570k, ~4.5 GHz on air, G.Skill 32GB 1333 OC, fast SSD for hammering, single Quadro 600.

I noticed the CPU power for the Z77 LE has been upgraded from the Z68 LE
Z68 LE: 4+2 phase, only has V-offset method
Z77 LE: Digital 6+2 phase, SMART DIGI+, owners manual shows choice of V-offset or V-manual

I think these are the main differences between the P8Z77-V LE vs standard P8Z77-V:
CPU power phases: 6+2 vs 8+4
PCIE 3.0 slots: 1 vs 2
Extra SATA 6GB/s controller: Marvell vs. ASMedia
LAN: Realtek 8111F vs Intel 82579V
FanXpert 2: no vs yes
Wifi: no vs yes
ASUS Q-LED: no vs yes
Price: $165 vs $200

I don't think the extra features matter for my needs, except if the Marvell or Realtek were troublesome (?), or maybe the power phases -- would the 6+2 be ok for a 4.5GHz 3570k? Any other differences that might matter for overclocking?

Thanks for any advice,
David
 

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Not a lot of people know yet how these perform with a 3570K. But if the Z77 boards meet Ivy Bridge requirements the way Z68 meets Sandy requirements, then I would guess that ultimately the (8)+4 phases could be important for +200MHz (+\-), or very slightly improved voltage requirement.

Based on the four P8Z68 boards I've gone through.
 

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Can't wait to see your post as I'm just about ready to pull the trigger on a new rig too. Same mobo, same cpu, will be using Corsair H60 liquid cooling. Please as I'm new at this, post details of OC settings as that would be most appreciative. Good luck! And yeah, I think the $35 was well worth it.
 

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Discussion Starter · #6 ·
To follow-up, I went with the standard -V when it was on sale at Newegg. It is working great. My OC results and settings are in this post in the Ivy Owners Thread.

Since then, I've also tried the 50% LLC ("High") at 4.6ghz to see how low the voltage and temps would be. Setting Vcpu in bios to 1.21, P95 loads it down to 1.176 - 1.192 in CPU-Z, which is stable for 12 hours with 77C max temp, and pulling about 15W less from the wall at load. So I'm currently there for 24/7 use. This 3570k seems to be one of the better ones -- I wouldn't expect a random one to OC that easily.

I also bumped Vdram to 1.57 and set DRAM Power Phase Control to Optimum -- for some reason I got more P95 rounding errors at the 4.6 settings above -- those changes stabilized it. Those may not be needed with normal amounts of RAM (mine has 32gb).

I haven't tried the EPU, TPU, or Wifi. I uninstalled AI Suite and haven't missed it.

Somewhere I saw a Z77 LK board hit 4.5ghz, so perhaps the LE would be fine -- I have no way of knowing. I see the current price difference between the -V and -V LE is $20 at Amazon and Newegg, so I'd make the same choice today.
 

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Sorry, forgot about this post. So I finally made and configured my pc. On ASUS P8Z77-V LE i got working cpu 3570K on 4.3GHz (BCLK=100.0). If I got higher even 44 step, system even can't boot. Otherwise ASUS AI Suite stopped at 42 multiplier and bclk about 104, but voltage was too high. Didn't try cpu voltage >1.200V, couse I have pritty bad cpu cooler. On loades temperature reaches 82С. Meanwhile I didn't use load-line calibration on extreme, think with it I can take 4.5GHz. May be will test this later.
Also I overclocked RAM Samsung M378B5273CH0-CH9 from 1333MHz (9-9-9-24 CR1) to 2133MHz (10-11-11-28 CR1) and iGPU to 1350MHz (don't have discrete videocard yet). Onse again sorry for late answer.
 

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Quote:
Originally Posted by Visi0NiL View Post

Just overclocked 3570K to 4.5GHz on 1,256V. Pritty stable. So I am glad for buying P8Z77-V LE motherboard. Don't see reason to overpay for P8Z77-V.
4.5GHz at 1.256V ? Are you hacking
biggrin.gif
? That's really good. It took me 1.468V to hit 4.8GHz on the 2600k. I guess the new line is more power efficient due to the 3D-gate architecture. Anyway for a personal concern, what temperature does that i5 hit on high load ?

btw, this reference maybe helpful for those of us who's still looking to find the differences of all asus z77 motherboards.
 

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On 4.5GHz (1.256V) temperature was close to 80C. But sometimes games crashed on this settings (Dota 2, StarCraft 2). I twikked it to 4.4GHz (1,232V) and system is very stable. May be I can lover voltage a bit more. Temperature about 72C.
The differance between Sandy Bridge and Ivy Bridge on same clockes is 0,1V. So for example I get 4.4GHz on 1.2V on Ivy, same clockes on Sandy can be achieved on 1,3V. The temperatures about the same, cause Ivy Bridge uses ****ty termal compound between chip and hitspreader.
 

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I just put together a system with ASUS P8Z77-V LE MoBo, i7-3770K cpu, a Hyper 212 EVO air cooler, and Win7Pro. Taking the easy route, I used the onboard overclocking utilities (trying both the one in the BIOS Setup screen and then the software utility) I was able to easily get the system up to a reliable 4.3GHz. A multiplier above 43 doesn't seem to be reliable. This seems consistent with some of the previous postings on this thread.

One curious issue is that when I reboot the system, the display is fine until the "loading Windows" screen, when the monitor starts alternating from a display to a black screen and Windows doesn't load any further. Turning the monitor off and then on immediately resolves the problem. This is an inconsistent problem, as Windows sometimes loads fine and sometimes presents the flickering problem.
I'm using the onboard video with an HDMI connection for the time being, until a new video adapter arrives. It will be interesting to see if the issue is resolved with a discrete video adapter.
 
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