MA790X / MA790XT-UD4P 790X bugs fixes etc etc.....

[chew*]

Guys if you have this board post here.....I will see what I can do, maybe i can get a board.....we'll see.....

Someone break out the camera, mobo thread is not official without board pics...

Bugs issues etc etc.......

This is not the place to complain about your 720 not hitting high jigahertz.......it's most likely a chip related issue........and not a bug...its a 720 for a reason....

Voltages not applying such as NB vid with Hybrid ACC enabled which has been brought to my attention would be considered a bug.......

[gOtVoltage]

Thank you your da man...


550BE is walking er driving to my house, Another Bday present lol.

So now i can tweak with X2 on this Mobo if need be.

790X and 790XT have same NBvid problem. X=DDR2 and XT=DDR3.

forgot to ask ,,
Will they add more Ram timing options? Say like drive strenths? This would at least make the DDR2 version alot more friendly to tweak . it would help for some brands to be more stable and run ram like Blades to higher limits.

[chew*]

Well we will just use this thread for both......I will see if i can get it edited.

[Daveburt714]

Well these pics don't look official, but I guess it's better than none...
I left them full rez, all pics are clickable for a more detailed view:









I've only had the board for a few days and the memory was the cheapest stuff I could find,
but so far it's not doing too bad for an unlocked 720...
Bios F4G is the only one that sucessfully unlocked the 720 but it does have one major problem (see below).



Now for the biggest problem I've found!
The CPU-NBvid (IMC voltage) is adjustable in bios, BUT it doesn't apply the voltage at post. No matter what you set it to it boots at 1.2v...

This makes it really hard to clock your IMC....
What I did as a temporary fix was to run the PhenomMSR Tweaker and have it automatically apply 1.275 as soon as windows boots.
So far this solution seems to be doing the trick, but I'd like to see this fixed in bios.

[chew*]

Just got an email

Gigabyte is already looking into the NB_vid bug with Hybrid acc enabled

4am here time for me to get some sleep..........

[SoulsCollective]

I'll have 790XT-UD4P until Friday, when the client comes to collect the build. Happy to take any pics or measurements anyone wants.


Lucky client


Inside the box


Body shot


Socket area


PWM etc


RAM slots (sorry about the cruddy focus here)


I/O


Expansion slots


SATA etc

Camera's a 50D so I can do much higher-res shots if anyone wants, but my Photobucket account only allows 1024x768 so you'll have to find me a new host. Sorry folks, no BIOS shots - waiting on a PSU.

[villa1n]

Just got an email

Gigabyte is already looking into the NB_vid bug with Hybrid acc enabled

4am here time for me to get some sleep..........

Music to my ears!! Thanks for the help, from all of us i believe, look forward to it. This board has been nothing but awesome aside that

[chew*]

Thx for the pics guys

[FlanK3r]

I have problem with MA790X-UD4, i wrote for Gigabyte suport...I cant changing NB multiplier in F3F bios, if i aply more than 11x (12, 13, 14 etc), PC dont post. I know, its 100% bug, with earlier BIOS was OK, i heard it from diferent people.
Problem si, x4 955 is support only with F3F BIOS.

[chew*]

How much voltage are you applying to NB_Vid?

What does AOD report NB_vid as?

Sux not having this board as I could just probe it with DMM to get actual applied NB vid voltage versus voltage set in bios...

[FlanK3r]

I set CPU-NB about 1.25-1.3 (=+0.15-0.2), NB voltage set as default, NB multiplier 12x , FSB 200 ---->PC not posting ...Interest is next: i set for example FSB 230, NB multiplier 11x (2560MHz for NB), cpu-nb +0.15v, NB voltage as default and PC post to win OK. I mean, its only bug in BIOS multiplier for NB 12 and more...So that i cant set DDR2 1066MHz and only NB multiplier for next a little better performance. Max OC with 1066MHz RAMs stable is about 1160MHz DDR2 and it is only 210 FSB. I found yesterday "ideal NB clocks vs CPU clocks: CPU about 3200MHz is the best NB about 1800-2000MHz, for CPU at 3500-3600 is NB ideal about 2400MHz, for 3800-3900MHz is the best NB 2600-2700MHz.

[chew*]

Thats likely not enough......try + .250+.275......the gigabyte tends to need more cpu_nb volts than most boards....also if your ram is not ultra stable increasing cpu_nb frequency will amplify/aggravate the situation even more causing a no boot situation.....also cpu cooling solution will also hinder your NB clocks......NB clocks introduce heat and quite a bit of it.....

Your also using a rather small non teir 1 PSU if I recall?

Basically I don't think your problem is a bug but hardware limitations.......

[FlanK3r]

I have 500w SEASONIC SS-500ET-T3 500W

[chew*]

So in essence you have a peak 500 watt PSU with continuous capabilities of 396W continuos and delivers max 17A to one the 12v rails since it's a split rail .........a card that consumes 200w loaded, not sure of the amps it pulls but I know its not extremely low.....you also are using a CPU with a TDP of 125 watts......so thats 325w ballpark not incuding what the board consumes, your hard drives....fans, cd rom......and whatever else your running....

You see where i'm going with this?....this is a PSU suited to power this system under stock speeds...

[gOtVoltage]

So in essence you have a peak 500 watt PSU with continuous capabilities of 396W continuos and delivers max 17A to one the 12v rails since it's a split rail .........a card that consumes 200w loaded, not sure of the amps it pulls but I know its not extremely low.....you also are using a CPU with a TDP of 125 watts......so thats 325w ballpark not incuding what the board consumes, your hard drives....fans, cd rom......and whatever else your running....

You see where i'm going with this?....this is a PSU suited to power this system under stock speeds...

+1

Im using a 650watt with PHII 4xcore on 720 @ 3800+and 3870x2,, it is close to taxing my PSU under 100% load. If i had a daul vidcard set up or Xfire i would be toast.

I also have another System with a 500wattPSU 30amp on single rail and it taxes the old 9950 @ 3400mhz with a GTX260. This system can not go higher due to the limits of the PSU.Thats with minamal hardware(1DVDbluray and 1 HD) only CPU Overclocked and 260 @ stock.

A nice PSU to would be a silencer PC750watt for 100% decent PHII clocking with two Vidcards or even three. For running more than Two cards I would get 800watt minimum if pushing the limits with ne PHII.. Just becuase they clock so high the TDP and power Draw goes way up.

[FlanK3r]

But i have only HD3870 and most times in idle , only CPU burning....

[GeorgeStorm]

This has got me thinking
Will my CoolerMaster M620 be enough for a 720BE unlocked clocked on an SS with a 9800GTX+?
For benching and stuff......

[gOtVoltage]

But i have only HD3870 and most times in idle , only CPU burning....

Hmmm. You should be under its limit if your card isnt Oced ,

Do you have a spare CPU thats higher watts that you could try.

If it still dose it with a higher watt PSU ,,then you know its something other than PSU related.

[FlanK3r]

I have not problem with clock CPU (benchmarks at 4050MHz) stability 3880MHz. but only NB clocks...

[gOtVoltage]

I dont want to stray OFFTOPIC ..
I really dont thinks its BIOS ,

Possiable lack of volts to NB on cpu and or a good chance the PSU is maxing When Clocked to High MHZ with NB.
That can some what explain ,when you add volts the sytem fails more than improve.

Adding 500 or 1000mhz to NB even with stock NBvolts @ 4ghz could be enuff to hit that PSU's limit when trying to bench.
The PSU probally dosnt pull a 500watt load under preshure.

Check NBvolts,,
Are the Nbvolts changing when you raise or lower them or are you being volt conservative? If your Running it stock and trying to get High Nb while the CPU is 3800mhz let alone 4ghz you probally need more NBolts to cpu.

1.45 vnbvolts @NBvid for 2600-2800nb on my 720BE @3800mhzx3cores .

At least 1.3-1.35v on the NBvolts for the 955 @ 4ghz cpu. It may even want more.

Like Chew said +.250 or even more.

1.2Nbvid (stock) + (+.250 Nbvid) = 1.35vid for the NB. The Hotter the CPU is sometimes the more it takes.(If the heat lets you)

Can your NB clock real high @ a lower CPUclock?

Try this,,
Set ram to 800 or what works to keep it kinda low.

Then see what the NB will do MHZ wise with what ever volts it takes. Write it all down. I do the Same for the CPU.

Then i Clock the CPU where i want it ,
Then i slowly raise the NBvid as needed while im raising the NB mhz.
I always raise the NBvid once the NB stops or BSOD's. When i cant go no More i run it a few 100mhz lower on NB or next lowest.
I repeat untill everything is stable.

I Actually find what the Ram can do timing and MHZ wise ,,before i do anything really. Ive seen the ram hold the Cpu's back because weak ram will limit the Max NB too.


NOTE:
Remeber what the NB does with CPU @ STOCk medium and High OC . As the CPU peaks in MHZ the NB will start to fall off in MHZ as the CPU/NB build heat.

Heat/ volts Causing the overall NB to be lower @ a Max CPu freqency.
This is just one reason why a lot of High MHZ CPU's 3800mhz+ run with only 2600/2800mhz NB 24/7. Unless you have real good watercooling or Air , 2600/2800mhz NB is about the Norm.

Hope something works for ya.

[Hemi345]

The NB/VRM area gets pretty warm at stock and really hot when pushed. I have pulled the pretty blue pieces off the NB and VRM heatsinks so the 120mm fan in the side panel blowing down on them is more effective:



Prior to taking off the blue pieces, mine would lock up like clockwork when TMPIN1 in HWmonitor (correlates to Chassis temp in BIOS) would reach 53C+. CPU temp (atleast what I think is CPU temp) was only reaching 52C when at 3.6Ghz with my budget cooler's fan maxed).

Any plans for Gigabyte to fix CPU temp reporting in AOD / HW monitor. I don't believe the 18C - 23C temps I'm seeing I've been going by TMPIN2 for CPU temp since it seems to correlate with what CPU temp says in BIOS in between reboots.

Any idea where chassis temp is measured; location of sensor?

[funnyperson1]

I had issues running Gigabit Ethernet speeds in Vista64, when hooked my machine up to a Gigabit switch, the ethernet would constantly connect and disconnect. I tried a clean install of Vista, and several different Realtek driver versions (the one on Gigabytes website, the newest from Realtek, and the one off Windows update). The ethernet would only work if I forced 100Mbps operation. I also tried rolling back to bios F4.

Gigabit ethernet works just fine in XP and Ubuntu, so its not a hardware problem. I suppose I should bug Realtek about it, but I figured I'd ask if anyone else ran into similar issues.

[Daveburt714]

The NB/VRM area gets pretty warm at stock and really hot when pushed. I have pulled the pretty blue pieces off the NB and VRM heatsinks so the 120mm fan in the side panel blowing down on them is more effective:

I'm seriously considering removing the "pretty blue" peices myself. I'm running the board outside of a case and I notced them getting pretty warm so I put a fan on them. They look nice, but I'm sure they would perform better without the covers, there are some decent sinks under there...

Prior to taking off the blue pieces, mine would lock up like clockwork when TMPIN1 in HWmonitor (correlates to Chassis temp in BIOS) would reach 53C+. CPU temp (atleast what I think is CPU temp) was only reaching 52C when at 3.6Ghz with my budget cooler's fan maxed).

It kinda sucks that you lose core temps when unlocking a 720, but hey, it's worth it and it seems to be a common problem across all boards that unlock so it's probably a CPU issue....

I just bought this board a couple days ago, so thanks for the heads up on where things seem to fail with the temps we can see when unlocked.
I'll be sure to pay attention, and see if I experience the same thing!

I know my 940 always gets squirley around 53c so this makes perfect sense..

chew*: It's not really that big of a deal, but I did notice another problem. Who knows where the trouble really lies, but it seems like the "hooks" to AOD may have some quirks.
The main one I've noticed is the PCI-e clock setting, alot of times adjusting this in AOD will result in it jumping all the way up to 150Mhz reguardless of what you set it to.
Kind of trivial I know, but I thought I would mention it.

I've had some really bad experiences with GBT Phenom boards, in fact I swore I would never buy another one!!
After seeing all the good reviews of this board and the decent price, I decided to give them one more shot...

I have to say, I'm quite pleased so far! For a Mid range board I'm impressed, it actually seems like they are paying attention to thier AMD customers agian...

[chew*]

It's a big deal to me.....I will let them know.....2 hard drives of mine have already been claimed while testing betas due to PCI bus speed having a mind of its own.......one of them my beloved 36g raptor which is no longer with us......

[FlanK3r]

I mean, its 99% BIOS bug, if i change with default clock CPU (3200MHz and1.35V) NB more than 11x, PC not posting, i can to try everythink with NB voltage CPU-NB and nothing....
But, if i try this over FSB, its OK. Example, FSB 230, NB 11x,CPU-NB +0.15V, NB voltage default, than is ok and im in windows. In BIOS i cant only changing NB multiplier (example i dont post with default CPU clock and NB at 12x=2400MHz only)
First experiment is with higher NB (230x11=2530MHz) and does work it.
Second nothink post. I mean, its really bug this F3F BIOS, others guy from us have x4 940, he flash this bios and he had the same problem. So gave back earlier BIOS and he said, NB multiplier was here ok.