Hi there, i have acer Z3620 with H61H-AIO 1.1 installed. I have replaced my SPI from 4mb to 8mb and flashed ivy bridge supported bios, but the problem is, that memory runs now only at 1333 MHZ with ivy bridge processors… So, there are hidden memory settings under Chipset tab, but it is hidden.
Can you please help me to unhide it?
From IFR a got this information:
0x3F70E Main (0x7)
0x4AE35 Advanced (0x1D)
0x529C7 Chipset (0x1F)
0x5A45C Boot (0x21)
0x5B009 Security (0x3C)
0x5BB08 Exit (0x50)
0x5BE9D Main (0x7)
0x5C1BB Advanced (0x1D)
0x5D58E Power (0x1A1)
0x5DB66 Authentication (0x1E3)
0x5DFDC Security (0x3C)
0x5E37A Boot Options (0x250)
0x5EADD Exit (0x50)
My tabs looks like Main - Advanced - Power - Authentication - Security - Boot Options - Exit
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Ok, i have sold it myself. As you can see, we have 13 tabs, and as i mentioned visible only 7 of them, so
I searhed for hex 00 00 00 00 00 00 01 01 01 01 01 01 01, and changed it to 00 00 01 00 00 00 01 01 01 01 01 01 01, replaced new setup in my bios with uefi tool, checksum -1 and everything works perfect! Now the first tab that i see is Chipset
@fr0n1k - Great you were able to figure it out yourself, good work! 
So you fixed the memory speed issue too now, correct?
Yeah. It works, strange, but works.
@fr0n1k - What is strange? I see memory running at near 1600Mhz, looks good to me if that was your desired speed
Memory set is strange. I set 1600, Custom profile, but when i change any of timings (for example from 9 9 9 24 to 10 10 10 28 or 11 11 11 30) it stops to boot, after 1-2 clear cmos it sets speed to 1600…
Hi, could you tell me what spi memory I had and why did you change I have the same motherboard with the w25q32bvsig chip but I’m not sure which one to change with
Hello, I have that same motherboard H61H-AIO 1.1 in a Acer z1620, could you please give me a dump of your bios or teach me how to have ivy bridge support