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[Official] ASRock Z77 Discussion/Owners Club - Page 230

post #2291 of 3170
Hi guys! I have an AsRock Z77E-ITX. I would like to change my ram.

Now I have DDR3 1600Mhz PC12800 8GB Corsair Vengeance Low Profile 1.5V CL9 (2x4GB) that goes realy well with no issues, but I like to try 2133Mhz or faster ram. Have you all some suggestions to make?

Thanks in advance!
post #2292 of 3170
Quote:
Originally Posted by PowerK View Post

Today, I've updated BIOS to the latest 1.5
ASRock > Fatal1ty Z77 Professional
There's one thing strange about voltage. It's VCCSA voltage.
In previous versions (official as well as beta), the default value of VCCSA voltage always was 0.925V (when set to AUTO)
However, with the new 1.5 BIOS, default VCCSA voltage is 1.200V (when set to AUTO)
Is that normal ?? Seems too high... and wonder it's a BIOS glitch..

so when I updated mine today it started mine off at 1.200 as well. I switched it back to .925 that I had before hand.
post #2293 of 3170
Hi there,

I read some pages of your topic and didn't find much about Z77 Pro3 which isn't even listed as a Z77 board. For sure there are some people who decide to buy something cheaper. I'm one of them smile.gif. I decided to share with you my experience with this budget board. Find my spec below:

i5-3570K/i5-2500K, Crucial Ballistix Sport 2x4GB (2000 MHz 10-11-11-28@1.5v), 520HXEU, 6870, ThermalRight MUX-120.

If you don't plan to have a Cross Fire or SLI (but its possible on mentioned board) and wouldn't like to reach 4.6+ GHz in OC this board is absolutly up to your needs. After month of using this board I found two issues. First problem is with VRM, there is 4+2 phases and for sure it's not enough for 2500K. Radiator of VRM is extreamly hot and CPU start throttle to 3300 MHz after about 10 minutes in Prime95 at 4500 MHz with +0.035v offset. If you do not fold or seti 24/7 you could live with that, i didn't notice throttling during normal usage like gaming or benchmarking. Probably my graphic card isn't so powerful to use full potential of 2500K.

I thought that if TDP of 2500K is 95 W and 3570K has 77 W maybe if I exchange CPU I will stop facing throttling under load. I sold the 2500K, bought 3570K and .... bought some time until 3570K start to throttle smile.gif about 20 minutes of heavy load (Prime95). So, for sure VRM on Pro3 and brothers like Pro4 or Pro4-m isn't sufficient for real OC. Moreover, if you need only computer to play games and mulimedia as me, you will not exepriance that issue. For sure it's a matter of that how you ventilate your case, my is very silent, few 12 cm fans on 7-9v, maybe this a reason.

I overclocked my i5-3570K to 4500 MHz at 1.196 (reading from CPU-Z) offset +0.045 v, PLL overvoltage disabled and PLL voltage lowered to 1.7... v. It's stable as rock, except throttling which start to appear when VRM is overheating.

That's a pity that TweakTown didn't notice VRM problem while they were creating an review of Pro3. I based my choice on their opinion.

Second thing is issue which i didn't solve yet and didn't find any answer on the forum. My usb 2.0 are behave, time to time, like a "new equipment" detected. It looks like I'm using mouse and suddenly cursor stops, mouse's red lens shuts down, 3 second and appear. After that mouse is fully functional. The same with keyboard. Maybe motherboard is broken some way, I didn;t find out yet. If you exepriance something like that and solve it, please share your knowlage becase its very annoying smile.gif.

Except this two things it's very good motherboard with well made UEFI.

Last thing, if you plan to buy 3570K do not spend too much money for fancy cooler, its pointless. This is impossible to cool down. Heat is inside the cpu and is not planning to go outside smile.gif. My cooler is not even warm during Prime95 but temperature is about 80C on readings.

Sorry for such a long letter, I hope this informations will help somebody to choose motherboard or explain why CPU is thorttling.
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post #2294 of 3170
Thats odd i had a z77 pro3 with first a 2500k at 4.8 24/7 and it ran at low 30's stable then i swapped the cpus for a 2700k and also took it to 4.8 24/7 and even folded on it. The temps when folding at 4.8 24/7 went to 60 max. I thought it was a decent mobo for the price. only reason i swapped it was because i got a Asus MIVE-Z
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post #2295 of 3170
I forgot to add that i also ran 2-6870's in crossfire then upgraded to a 7970 and it ran find with the z77 pro3. Gave me 11k on 3dmark11
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post #2296 of 3170
Quote:
Originally Posted by chino1974 View Post

Thats odd i had a z77 pro3 with first a 2500k at 4.8 24/7 and it ran at low 30's stable then i swapped the cpus for a 2700k and also took it to 4.8 24/7 and even folded on it. The temps when folding at 4.8 24/7 went to 60 max. I thought it was a decent mobo for the price. only reason i swapped it was because i got a Asus MIVE-Z

Maybe its a matter of ventilation, maybe they change something in construction and used cheaper VRM's on newer revision.
Just like I said, SLI and CrossFire is possible, with cheaper cards for which PCI-E x8 will be sufficient.

I still struggle with USB issue, time to time my mouse is shutting down and after 3 second is detected by windows as a new equipment.
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post #2297 of 3170
Maybe there is an option to cool down VRM section by lowering some voltage?
Edited by Na1l - 12/15/12 at 5:06am
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post #2298 of 3170
Quote:
Originally Posted by Na1l View Post

Maybe there is an option to cool down VRM section by lowering some voltage?

Here is a sheet on VRM's. It could be the VRM on that board isn't the greatest and can't handle higher overclocks.

http://sinhardware.com/images/vrm.jpg
post #2299 of 3170
Guys just updated to 2.70 bios, had 2.30 before, and i saw that slight full load (eg Prime , Linx) vcore fluctuation.
Other than that,everything seems pretty stable as it was - 4600 1.275 Vcore 3770k i7.

I just wanted to ask here if its worth upgrading Extreme 4 to a better asrock board lets say Overclock Formula.
Will i have better overclock headroom or performance per mhz?I know for sure 1 thing, that OC formula supports
3GHZ memory and it has a better pwm.The fact is i want some solid proof from someone that already made the step upwards.

Thank you
Edited by HellionGR - 12/16/12 at 6:11am
post #2300 of 3170
Quote:
Originally Posted by HellionGR View Post

Guys just updated to 2.70 bios, had 2.30 before, and i saw that slight full load (eg Prime , Linx) vcore fluctuation.
Other than that,everything seems pretty stable as it was - 4600 1.275 Vcore 3770k i7.
I just wanted to ask here if its worth upgrading Extreme 4 to a better asrock board lets say Overclock Formula.
Will i have better overclock headroom or performance per mhz?I know for sure 1 thing, that OC formula supports
3GHZ memory and it has a better pwm.The fact is i want some solid proof from someone that already made the step upwards.
Thank you

check here...
http://www.overclock.net/t/1306881/official-asrock-z77-oc-formula-overclocking-troubleshooting-discussion
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