GIGABYTE Z790 Aorus Tachyon

[sergmann]

choose only one mem stick in the right slot and don´t forget, not all CPU´s or Mem can boot these settings.

I´ve tested many CPU´s for Gear4 and only few can boot this profile.

 

Try 84 bclk, if it doesn´t boot, you must play with voltages.

Good start point SA 1,25 / CPU VDD/VDDQ 1,35/1,45

 

 

[Vertex_FR]

7 minutes ago, sergmann said:

choose only one mem stick in the right slot and don´t forget, not all CPU´s or Mem can boot these settings.

I´ve tested many CPU´s for Gear4 and only few can boot this profile.

 

Try 84 bclk, if it doesn´t boot, you must play with voltages.

Good start point SA 1,25 / CPU VDD/VDDQ 1,35/1,45

 

 

thank, for now i will go with G2 and GB3 to try to improve my 8400c34 16,4k mem score that i got on x6v. 

[sergmann]

Please note, for Gear4 you can try different memory dive settings

Fuzzy, for general Gear4 users
Span, this should helps when CPU at cold, like subzero
Ramble, if your CPU likes high VDD2, try this if can favor you.

Flare in memory dive, improves gear2 clock and stability.

You can also play with different "DDR Bus Response" values, it helps for some cpu´s to be more stable

 

 

[Vertex_FR]

44 minutes ago, sergmann said:

Please note, for Gear4 you can try different memory dive settings

Fuzzy, for general Gear4 users
Span, this should helps when CPU at cold, like subzero
Ramble, if your CPU likes high VDD2, try this if can favor you.

Flare in memory dive, improves gear2 clock and stability.

You can also play with different "DDR Bus Response" values, it helps for some cpu´s to be more stable

 

 

thank, with cpu ramble i can boot into windows, gb3 dont pass djikstra but it's not crashing

 

[sergmann]

Ramble is more for Gear4 settings, try Flare

[BOBKOC]

On 5/14/2023 at 1:34 PM, sergmann said:

Good start point SA 1,25 / CPU VDD/VDDQ 1,35/1,45

CPU_VDD2=1.35v & CPU_VDDQ=1,45v or CPU_VDD2=1.45v & CPU_VDDQ=1,35v ?

[sergmann]

CPU VDDQ 1,35 / CPU VDD2 1,45

[Vertex_FR]

8400c34 done, flare mode 

1,3 sa

1,35 vddq

1,45 vdd2

1,6v mem vdd/vddq

[Vertex_FR]

6 minutes ago, Vertex_FR said:

8400c34 done, flare mode 

1,3 sa

1,35 vddq

1,45 vdd2

1,6v mem vdd/vddq

same setting with rdeq1 and mem at 1,65v 34 48 48 32

but not stable for Windows 

[Vertex_FR]

8686c34 gb3, profile improveme't in progress

 

Edited May 15, 2023 by Vertex_FR

[sergmann]

Very strong!

[Vertex_FR]

16536 pts at 8686c34 for now, target 17k. i hope it can be douable.

still same settings:

1,3 sa

1.9 vccinaux

1,35 vddq

1,45 vdd2

1,7v/1.65 mem vdd/vddq

rdeq2

flare mode

fastboot : auto

and ofc, test performed ambiant 25°C with watercooled mem and cpu.

[suzuki]

17k is not what it used to be, can be obtained at 5.5 ghz cpu and mems at 8400c32, all ambient.

Many loosen timings to go for freq, but they loose efficiency.

Increase tras, go down with trp.

[FengXi]

21 hours ago, sergmann said:

Very strong!

Do you have XOC bios for other gigabyte Z790 boards ?

[sergmann]

sorry, only for Tachyon

[Moonman]

Was anyone able to use Win XP64 with Z790 Tachyon? Would kindly ask for ISO

Edited May 19, 2023 by Moonman

[sergmann]

In Asus z790 thread you can find all files for download. With X7b bios it was able to install xp64. But I use my old dvd drive for installation 

[Vertex_FR]

if you dont have a cd drive you can try with winsetupfromusb 1.9. but it need usb driver inside your xp iso to boot.
in my case i have a pcie to usb2.0 + PS/2 with drivers for XP and win7 for all motherboard and i use a modded nvme drivers to get  XP and 7 compatible with all system. 

 

[sergmann]

In Asus z790 thread you can find all files for download. With X7b bios it was able to install xp64. But I use my old dvd drive for installation 

[Moonman]

Thanks for info! I did try with ISO from ASUS z790 thread but it was on older bios. Will try it with X7b bios and dvd drive for installation.

[sergmann]

Last XOC-Bios which we have used for max mem is in the first post

[asdkj1740]

On 6/8/2023 at 10:52 PM, sergmann said:

Last XOC-Bios which we have used for max mem is in the first post

x7d for max frequency only?

[sergmann]

Of course not. You can use it for Gear2 and Gear4

[l0ud_sil3nc3]

On 6/10/2023 at 11:39 AM, sergmann said:

Of course not. You can use it for Gear2 and Gear4

[FengXi]

X7d bios stuck at 05 and won't shutdown after I turn off the system