I have a GA-H61M-S2PV (rev. 2.0), and I’m currently interested on checking and unlocking the RAM speed (mhz) settings.
According to Gigabyte this MB only supports 1333mhz maximum, and the specs only talk about support for XMP profiles for rev 2.1 and 2.2 (only for Ivy Bridge).
I know this is false (probably), because of this video: https://youtu.be/8FH5z44zedM?t=1m23s (min 1:23) What we see is an ivy Bridge 3770k on a Rev 2.0 with the first Bios FD, supporting XMP profiles, and being able to select up to 3000mhz for ram speed.
What I want to know is, will the Ram speed will be unlocked with an Ivy bridge non-k? Because I plan to buy an i5-3570S. I didn’t find any user online with this setup yet so I want to find out disassembling the BIOS. And possible try to mod it to unlock the RAM speed if it’s not unlocked for non-k series.
So I followed this threat [Guide] Manual AMI UEFI BIOS Modding , I have the MMTool.exe, and I can see the “internals” off the BIOS. But I have no clue, of how I can see for what CPU’s the RAM mhz is unlocked, that’s where I need your help.
If you want to use higher-than-stock RAM clocks, do not use a CPU with suffix S. S-Models are not made to overclock (regardless of memory or core clock). If you only want to change RAM speed, use i5-3570 (without any suffix, about 40€ difference).
XMP support is implemented in BIOS. If the newer versions don’t support it, just do a downgrade to version FD.
Thanks for your answer. The Problem is that probably mhz are locked and XMP not available for Sandy Bridge on any Bios version. Because of the web review, and I don’t remember to see that when I had FD.
On the Rev 2.1 specs it says “* To support XMP memory, you must install an Intel 22nm (Ivy Bridge) CPU.” I does not say that on 2.0 Rev, but I believe is the same.
Which are the “FileNames” on MMtool that control these settings?
On the S-series topic, If I get 1866 with an 3570S (I hope, it’s just an “increment” of what Intel guaranties) and 2133 with an 3570, I still prefer the S. I like efficiency, low noise etc. Anyways that’s something I can research later how S-series deal with Ram speed, but first step is be sure at least I’m able to select more than 1333mhz.
Yes XMP is implemented, there’s proof on the video, a Rev 2.0 FD with an Ivy Bridge-k. But I’m not sure if a non-k will be able to select a +1333mhz XMP profile, or if it will have the Memory Multiplayer unlocked.
Do yo think that the FD “Enhanced DRAM OC ability” is not in the newer BIOS? I think that I will see (or be able to do) the same with my Sandy bridge, but I can try.
non-K OC: - FSB: 133 MHz - Mult: 26 - Core: 3.5 GHz - RAM: would be 1418 MHz (too high), must be lowered like 1200 MHz
K OC: - FSB: 100 MHz - Mult: 35 - Core: 3.5 GHz - RAM: stays at 1066 MHz
As you can see, only the BCLK (or FSB) and memory divider can change the memory clock. The CPU multiplier does not change the memory clock.
Some information regarding to XMP: This feature just reads the clock and timing of the installed modules, and sets this information in BIOS. If you know these settings, you don’t need XMP and set them manually. It just 1 setting (XMP) vs 20 settings (manual), which is comfortable, quick and less annoying.
PS: Gigabytes decision to link XMP to Ivy Bridge is weird…
I know XMP are just profiles, to make a fast correct setup, but as I said RAM multiplier, so RAM Mhz are locked for Sandy Bridge too, so I cannot configure any more than 1333mhz, I can change all the timings but not mhz. On the 3770k video he can select up to 3000mhz in little increments, I only have 3 options 800, 1066, 1333.