I just bought this and compared to my "old" Z390 Aorus Master there are some nice improvements, some of the nice things carry over... and a few downgrades, in addition to a few so-so "things" being carried over as well.
The Good/Improved:
1 --- Debug readout is finally up on top which was on the bottom on the Z390 Master. Bottom mounts of the debug displays on high-end boards were bizarre choice for Gigabyte. Everyone else has been doing top-mounts (ASUS!) for ages on their flagships. Matters a lot since some of us still run SLI/Crossfire and multi-GPU setups pretty much cover or obscure bottom mounted readouts. (Depending on the case and cable management naturally)
2 --- RAM overclocking seems to be better although that is very CPU/IMC dependent. I'm using a 10700k on Z490 Master and 9600k on the Z390 Master. That said, using the same RAM kit (16CL 3200, 64GB, 4x16GB T-Force kit) as on my Z390 Master I was able to get up to 4100 with somewhat loose timings and not a lot of voltage. On the Z390 Master/9600k combo, 3600ish was the limit no matter the voltage or timings.
3 --- VRMs seem to be cool as heck, I mean that literally. After a 12 hour overclocking/torture session just this past weekend and both rows are sitting in upper 30s! As per internal probe readouts. Confirmed with externally mounted probe to the vertical VRM heatsink, that showed only about 11-12C deviation from min-to-max. In other words, throwing stupid amounts of overclock and voltage at the motherboard/CPU and VRM barely got tasked at all. That said, I experienced similar things with the Z390 Master, so at least that has not changed.
4 --- Backplate! While it adds quite a heft, I think that is part of the point. Much like my Z390 Master, the backplate adds some nice structural rigidity. Making adjusting and full swaps much easier, not to mention bench testing a breeze. A nice carryover.
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The BAD?
1 --- USB 3 plug mounting and general visual obfuscation scheme of all USB plugs. Not a whole lot they can do about some of it, I guess, since the USB Consortium has their own specs on how/where the plug has to be positioned, but they (Gigabyte) literally camouflaged the pins of their USB ports. Here is a comparison between cheapo ASUS Z490 Strix and higher-end Z490 Master USB3 plugs (my Z390 Master has the same issue, more about that below). Gigabyte on the left, ASUS on the right.
<Gigabyte--------------ASUS>
As you can see, actual pins are masked by the "mil-spec-cool" lettering Gigabyte uses on the inside of their plugs. (USB 2 plugs have the same issue on Gigabyte Z390 Master / Z490 Master) Where problems occur is with the USB 3 plug mostly, since cheapest and thinnest plastic is used for the plug edges and combined with vertical mount of the actual port.... well this is a dangerous combo, especially since USB3 cables are thicker and more rigid than their USB 2 counterparts.
Long story short I lost a few pins and edges of the USB3 plug on my Z390 Master after only after a few swaps! Mounting the USB 3 plug sideways (which some manufacturers are doing, like EVGA) would relieve the tension on the actual pins. Something I rectified with $5 USB 3 elbow adapter on the Z490 Master. Lesson learned from Z390 Master issues. Also, the "visual camo" Gigabyte has introduced with their "cool" lettering actually obscures any bent or angled pins.
2 --- Lack of any additional PCIe x1-x4-x8 slots vs. the Z390 Master which had three additional x1 slots. Now lot of this has to do with the new Intel chipset I'm guessing, and all of the high end Z490 competition (Godlike, Hero, MEG, Taichi) have the same issue, but here Gigabyte lost a chance to differ from their competition. Everyone is trying to stuff as many M2 ports as possible, so real estate for additional PCIe slots is lost BUT on the Z390 Master, Gigabyte managed three M2 plugs AND three additional x1 PCIe slots in addition to three x16 slots. Now on the Z490 we are down to three x16 slots and that's it. Depending on your mGPU setup this might leave you with no expansion at all. Call me a boomer, but I like to have my separate sound audio solution. Motherboard/onboard audio has improved, but not really. Realtek audio hardware is still Realtek audio hardware, marketing mumbo jumbo and re-brandings aside, Realtek gear was and still is mostly on the "barely-good-enough" level. So, a definitive downgrade from Z390 Master.
All in all, a nice little sidegrade to my Z390 Master (which I'm still playing with). I wanted more cores while preserving the gaming performance Intel still offers, and it was either a 9900k or a 10700k. Was it worth it as far as the motherboard/platform was concerned? Yes I think so. Mounting my SB RX on the bottom most PCIe-x16 on the Z490 Master worked out kinda. But I had to delete my USB 2 card with XP compatible drivers for Z390/Z490. So now when I do HWbot intensive stuff I have to delete my sound card on the Z490 master in order to get into the other OS. Not a major inconvenience, but that top mounted debug read out makes up for it.
Oh yeah, Gigabyte, FIX YOUR USB STUFF!
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