Running at default speed and cooled by tec block?
The temperature seems pretty high.

About the CPU-Z voltage reading, I think it is the CPU-Z problem instead of the mobo bios.
Newer version CPU-Z might be able to pick up the right voltage.

Intel has probably fine-tuned the HT in IB.
It runs at lower voltage with HT on.

---

Added on May 3, 2012, 9:48 amThat is a good voltage at 4.5GHz.

This post has been edited by ALeUNe: May 3 2012, 09:48 AM

May I know what is the maximum BCLK you can hit on IB?

Holy cow... 1.85v?

I'm gonna get an i5-3570K for my HTPC.
I need to get mATX.
I'll only get the budget Z77 board, meaning in the range of MYR310-350.
With that, I have only 2 options, either Asus A8Z77M or Gigabyte Z77M-D3H.

Which is a better board in terms of overclocking?

I have to use mATX because my HTPC system is using Lian Li PC-V350.
I owned wide range of motherboards, from premium to budget mobo.
I never had problem to overclock with mATX.
I managed to achieve the same overclocked result with budget mobo (i.e 4.4-4.6GHz with Nahalem and Sandy Bridge).

I just wonder how is the "overclockability" for current Z77 mobo, particularly Asus and Gigabyte.
I heard Asus has slow boot up (it takes a long time to detect hardware at bios boot up).
So Asus users, do you encounter slow boot up with your Z77 mobo?

This post has been edited by ALeUNe: May 12 2012, 02:09 AM

Just bought an i5-3570K.
However, I couldn't find Asus P8Z77M at any PC ship in Danga City mall @ JB.
I bought a Gigabyte Z77M-DSH instead. It is the only mATX Z77 mobo I could find at Danga City Mall.

Will assemble it tomorrow and find out how it fares then.

I could only hit 4.3GHz @ default voltage with my i5-3570K / Gigabyte Z77M-D3H.
Idle temperature @ 40-40c. Load temperature @ 70-75c.
Closing casing @ Lian Li PC-V350. The cooler is Corsair H50.

Can't push higher because this stupid mobo does not have vcore control.
(I think the new bios update can rectify this).

Yes, I think this is the case.

IB @ 4.3GHz is way way faster than my previous i3-540@4.6GHz.
Even my SSD (the same SSD I used in previous system) has 2-3 seconds of shorter boot up time. No joke.

For my case, it doesn't even have vcore setting.
It has only mem voltage setting.


I think I am lucky to have a Gigabyte mobo with Intel mobo bios.

Already updated last night.
F6 still don't give vcore setting.

Yes, I saw Gigabyte posted F7 bios on their website last night.
However it was not available to download.
It seems they fixed the link this morning. Thanks for the link.

I didn't read the manual. And I hope the next bios will fix this (like what they did on the x58 mobo).
I'll run it at default voltage in long run anyway since it is for my HTPC.
Without the vcore, I just couldn't tell how far the chip can go.

---

Added on May 15, 2012, 9:25 amYes, this is not the right one for OC.
I'll dump it if I can't stand the itchiness for OC.

This post has been edited by ALeUNe: May 15 2012, 09:25 AM

For H77 series, yes, I can understand it doesn't need vcore.
But it's a bit no brainer to leave out vcore option in Z77 mobo.

I would be grateful if you could make me one customized bios.

It's Gigabyte Z77M-D3H (Rev 1.0).

Many thanks.
Leaving office now. I'll flash it once I reach home.
Many many thanks.

The bios is successfully flashed. It's detected as Z77-D3H.
However the setting is not running in actual.
I set 1.3v in bios and load with OCCT but the CPU-Z still show default vcore.

Could your mobo run in different core voltage with the modified bios?
Any idea?

This post has been edited by ALeUNe: May 15 2012, 04:10 PM

Yes, I loaded the default value after flashing.
The ET6 reported the same value as shown in CPU-Z.

By the way, you add the voltage at vcore or dynamic vcore?

Yes, I think it is the hardware limitation.
I tried both vcore and DVID and it doesn't change the real voltage value.

I'm stuck at 4.3GHz then.

P/S By the way, just for your info, my PCIE1x slot is not usable with the modded bios.

This post has been edited by ALeUNe: May 15 2012, 05:15 PM

Yes, it seems Z77M-DSH doesn't have "Gigabyte 3D Power".
Bad Gigabyte.

I find "Intel system" is cracking down "overclocking at budget category".
My office PC, Nehalem/i3-540@4.6GHz is running well with Gigabyte H55M-SV.
Intel started "K" in Sandy Bridge.
Now with IB, the Z77 budget mATX looks like a joke now.

This post has been edited by ALeUNe: May 15 2012, 05:35 PM