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

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Originally Posted by chew*

If default is 1.30 and you add .25 how does that equal 1.60? Not to mention this is not a 955.....totally diff animal. 720's love volts.....955's dont.......

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Wow, alirght, so 1.475 nb voltage is safe too? I have a scythe mugen 2 with a kaze 3000rpm and the 133cfm, and the stock fan for mugen under it , perpendicular cooling haha, anyways i seem to have decent temps, you think those volts are stable on a 720be.. i seem to get stuck on a 3.5ghz wall with it, and my 8gb of ram. actually i post my bios shots too in a sec ^^ My ram is 8gb of this Ram

http://imgur.com/3UQxkl.jpg

http://imgur.com/WocO0l.jpg

Prime temps on far right according to speed fan, tmp2 I guess my cpu?

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Originally Posted by villa1n

Wow, alirght, so 1.475 nb voltage is safe too? I have a scythe mugen 2 with a kaze 3000rpm and the 133cfm, and the stock fan for mugen under it , perpendicular cooling haha, anyways i seem to have decent temps, you think those volts are stable on a 720be.. i seem to get stuck on a 3.5ghz wall with it, and my 8gb of ram. actually i post my bios shots too in a sec ^^ My ram is 8gb of this Ram

http://imgur.com/3UQxkl.jpg


Prime temps on far right according to speed fan, tmp2 I guess my cpu?

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Leave the Southbridge on Auto or stock volts.


1.4v on SB is only overheating it.

1.28v/1.30v on SB is considered a close to max volt you would want to use for 24/7.

NB chipset is fine @ 1.3v but that is also about as much as you would want to go on that as well.

1.4v SB is safe.....1.5 is not ;) however pointless unless your cranking HT which is also pointless.......unless your on ln2 at 6 gig in crossfire.........

SB is linked to HT......gigagbyte needs to seperate this in future boards as the SB in most cases cases can not handle 1.5v for extended periods......we have one board out of many so far that can.....

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Originally Posted by chew*

1.4v SB is safe.....1.5 is not ;) however pointless unless your cranking HT which is also pointless.......unless your on ln2 at 6 gig in crossfire.........

SB is linked to HT......gigagbyte needs to seperate this in future boards as the SB in most cases cases can not handle 1.5v for extended periods......we have one board out of many so far that can.....

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Wow now i know why my HT was acting up @ 5200mhz when only using 1.2v lol.

Ill have to play with that now lol. HT @ 2600 13x runs smooth when having higher than 2600Nb ive noticed. I just was never giving it enuff volts .

Im usually the One to go volt crazy too:rofl:

Also for the 790X UD4P DDR2 version ,, the New F5 Bios seems more stable than the old F5A(Beta) from last week.

All options seem the same between both Bioses ,, Just the F5 is more stable it seems to run 5-5-5 timing better in 1066 mode.

Try running a variety of benchmark tests with HT up and down ;) you will find that for the most part 2100 - 2200 performs best.......higher hinders performance even in 3d........and seems to only benefit us extreme cold guys in crossfire or IGP 3d benching....

1.5 is required for 2800 btw......and we have damged a few Sb's that way benching 3d...

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Originally Posted by chew*

Try running a variety of benchmark tests with HT up and down ;) you will find that for the most part 2100 - 2200 performs best.......higher hinders performance even in 3d........and seems to only benefit us extreme cold guys in crossfire or IGP 3d benching....

1.5 is required for 2800 btw......and we have damged a few Sb's that way benching 3d...

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Thank you Sir,, ive noticed that stability is usually best @ about 2000/2200HT when my Clocks are high too. This probally goes hand in hand.


Also when ive had Ht @ 2600+ ive ran into the ( It wont boot all the time syndrome) I usually only ran it when Pushing a High Bench. Ive noticed like you said ,, Better Benching with little over 2000mhz HT up to 2300HT and then it started falling off pace.

HT is kinda Like if you Overclock a Videocard,,,If its too much it starts performing worse.

So ill be playing around with keeping the HT close to stock anyway for 24/7,, Ive noticed that bench runs actually went up in #dmark with 2200HT vs 2600HT.

This is a very fun Mobo to tweak 720/550's on . Once you get used to how Much Volts to use in Bios , its fairly easy to tweak a Cpu as long as you keep the Temps under control.

Phenom II is night and day Heat/volt wise compared to B3.

So Chew are all those results in the last page on air??

with this board if u put a 1x slot in the bottom slot will it change the whole thing to 8x or will it just run 1x and leave the top slot on 16x

and dose the realtec nic do hyperV properly

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Originally Posted by zanzabar

with this board if u put a 1x slot in the bottom slot will it change the whole thing to 8x or will it just run 1x and leave the top slot on 16x

and dose the realtec nic do hyperV properly

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it will run 16x top 1x bottom if a 1x card is run with 16x card


if you use 8x on bottom and 16x on top you will run 8x 8x


Note:
My 3870x2 enables in PCI-E 16x 2.0 on this mobo..

On the M3A79-T i only could only run PCI-E 16x 1.0 .

Gigabyte did a goodjob at tweaking the PCI-E/2.0/1.0 lane switch on the UD4P.


http://i168.photobucket.com/albums/u...I_E2_0bios.jpg

The only way a 3870x2 can run in PCI-E 2.0 is if the Mobo set the correct code for it. Gigabyte is the only Mobo i have seen @ 2.0 spec while running a 3870x2.

All my other Mobos set PCI-E 1.0 16x...and would keep the card locked in ANOLOG switch mode.This was a big problem with the PLX 1.1 bridge chip and running DVI with Bioses when 3870x2 first came out.

The 4870x2 dose not have this problem, since it uses a different Revesion PLX chip for its bridge.

This UD4P has given me more than i could ask for with the hardware im using ATM.

I havnt even messed with HyperV so i cant comment.....

Im shure someone will know.

i had acctualy posted int he wrong thread i thought that i was in the MSI one, that question makes no sense when its a 16x16 MB with only 2 16x slots

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Originally Posted by mav2000

So Chew are all those results in the last page on air??

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yes, not my board so I risked no other cooling methods......ambients are room temps 72F.......via AC.

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Originally Posted by chew*

Nanohead do you mind if I swap out the pushpins for the hardmount bolts/springs for NB and SB off my dead 790FX-UD5P? Not to fond of these pushpins....

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Hey, sorry, just saw this. Been busy the past week. Nope, don't mind. Have at it!

Also PMd you

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Originally Posted by gOtVoltage

it will run 16x top 1x bottom if a 1x card is run with 16x card


if you use 8x on bottom and 16x on top you will run 8x 8x


Note:
My 3870x2 enables in PCI-E 16x 2.0 on this mobo..

On the M3A79-T i only could only run PCI-E 16x 1.0 .

Gigabyte did a goodjob at tweaking the PCI-E/2.0/1.0 lane switch on the UD4P.


The only way a 3870x2 can run in PCI-E 2.0 is if the Mobo set the correct code for it. Gigabyte is the only Mobo i have seen @ 2.0 spec while running a 3870x2.

All my other Mobos set PCI-E 1.0 16x...and would keep the card locked in ANOLOG switch mode.This was a big problem with the PLX 1.1 bridge chip and running DVI with Bioses when 3870x2 first came out.

The 4870x2 dose not have this problem, since it uses a different Revesion PLX chip for its bridge.

This UD4P has given me more than i could ask for with the hardware im using ATM.

I havnt even messed with HyperV so i cant comment.....

Im shure someone will know.

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gOtVoltage, I'm pretty sure the PCIe switch in the 3870X2 is 1.0 and Everest only detects if the host (mainboard) supports 2.0, but not if the gen2 mode is actually enabled.

http://img26.imageshack.us/img26/8455/pciegen2.th.gif
GPU-Z detects both sides of the bus ;)

ps. this dumb Jetway HA03 (also 790X) doesn't enable 16x on the first slot with the 4890, even with the switch card placed on the secound one... :(

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Originally Posted by nanohead

Hey, sorry, just saw this. Been busy the past week. Nope, don't mind. Have at it!

Also PMd you

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Cool consider it a free upgrade :)

I just got this board, flashed it to F5a BIOS version, paired it with Phenom II X2 550 and tried unlocking to X4. 550 is 0921 APMW

Tried with EC Firmware Hybrid, ACC Auto, tried ACC all cores +2, -2, +8, -8 but no go. It is being recognized as B50, but I cant boot into windows, it shuts down as soon as I get to the start of the windows boot screen.

All other options were default. Is there any other option that I should try changing to get all 4 cores working?
Or my other 2 cores are just not working?

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Originally Posted by Jerry Rob

I just got this board, flashed it to F5a BIOS version, paired it with Phenom II X2 550 and tried unlocking to X4. 550 is 0921 APMW

Tried with EC Firmware Hybrid, ACC Auto, tried ACC all cores +2, -2, +8, -8 but no go. It is being recognized as B50, but I cant boot into windows, it shuts down as soon as I get to the start of the windows boot screen.

All other options were default. Is there any other option that I should try changing to get all 4 cores working?
Or my other 2 cores are just not working?

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Means that chip wont unlock. you can try tossing volts at it but my guess is those are bad cores......I had the same thing happen with a chip I tried recently.

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Originally Posted by chew*

Means that chip wont unlock. you can try tossing volts at it but my guess is those are bad cores......I had the same thing happen with a chip I tried recently.

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Thanks, I tried tossing some voltage all over but it didnt help :D

4 cores for 130$ would be great, but this CPU is good enough as it is :)

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Originally Posted by Jerry Rob

Thanks, I tried tossing some voltage all over but it didnt help :D

4 cores for 130$ would be great, but this CPU is good enough as it is :)

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try Clocking it to 3800 -4000ghz with stock NB on two cores ,, big differance even if you dont have two extra's

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Originally Posted by gOtVoltage

try Clocking it to 3800 -4000ghz with stock NB on two cores ,, big differance even if you dont have two extra's

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I did, it runs very smoothly on 3800 MHz, doing some testing right now :)

I was just kinda dissapointed, I didnt play much with hardware for past few years, so I was hoping for some unlocking action- Now that I OC'ed this chip I'm feeling much better :D

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Originally Posted by chew*

E-mail sent guys, bottom line I asked for ram tuning options.....there is not much room for error with the current options the board offers....

If the auto detected ODT and drive strengths are not optimal for your specific modules it will cause some instabilities.....

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I hope Gigabyte comes through on this soon! I'm pretty eager to do some better DDR3 tweaking.:confused:

hello everyone, i was wondering if someone can help me with what is probably a simple problem.

i picked up a 790XT-UD4P today with a 720BE, i put the F4G bios on, unlocked my 4th core, and things are going well.

my problem is that if i change the CPU voltage or CPU NB VID in the bios, i can't make it to windows.

if i leave the voltages to default and just boot windows, i can increase voltage with easytune.

any ideas why i can't add any vcore in my bios?

i have a 2nd board, and i have the exact same problem with it. so there must be some setting i'm missing.

any ideas on why i can't change voltage without it freezing at the beginning of windows startup.

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Originally Posted by mondena

hello everyone, i was wondering if someone can help me with what is probably a simple problem.

i picked up a 790XT-UD4P today with a 720BE, i put the F4G bios on, unlocked my 4th core, and things are going well.

my problem is that if i change the CPU voltage or CPU NB VID in the bios, i can't make it to windows.

if i leave the voltages to default and just boot windows, i can increase voltage with easytune.

any ideas why i can't add any vcore in my bios?

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Latest bios is F5/F5a (same), update to that; I haven't had any problems and am running it with my 720BE unlocked.

Hi,

Im new here but not a total noob to overclocking. I have been a member of another forum for about a 4 months now but would like to get a different perspective from time to time.

I have a 790x-ud4p like in my sig. I was wondering has anyone encountered any form of severe ram overvoltage with this board. My problem started when I bought a set of the OCZ low volt blade 1066's. See they call for 1.8v and are covered up to 1.85evp. My board for some unknown reason when bios was set to normal for ddr2 voltage would give the ram 2.05 volts (confirmed in bios and everest). If I upped it by +.1 (which is how my board works...in +.1 increments to 2.4 volts i believe) It gave me a 1.95 volts as confirmed in bios health status menu, after which scaled properly with each +.1 increment adding an additional .1 volt to memory. After a round with both OCZ support and Gigabyte support the finger pointing began. One part told me that in no way fashion or form could the memory affect what voltage was given to the sticks, that It was 100% the motherboards fault if it overvolted. The other said that It had to be the Jedec profile either not being correct or being misread. I could not for the life of me get this memory to run at 1066 1.8 nor 1.9 volt. I tried a set of patriot viper 1066 and guess what, this memory instead was at a 1.95v for normal. I afterwards installed a old set of crucial 533 ddr2 and It was the only set that defaulted at the proper 1.85 volts. I sent the blades back to tigerdirect and exchanged them for a set of 1150mhz ocz titanium, which after trying every timing (loose and tight) available in my motherboard, would not get past one run of memtest test 5, nor even get started with prime 95 blend. This is not the only set to have issue as I have also tried corsair dominator 1066 4gb kit and results were close to same as Titaniums except they would work at less than 900mhz stable.

So In you guys opinions, is my board whack, or is this some sort of incompatibility issue with this mb and ram.
Not trying to rob a thread but thought heck this is the place with people who have similar boards as mine and someone could confirm whether it is a issue or not.

Could you post a screen shot of where you're seeing this in everest and some cpu-z shots (cpu,mainboard,spd,memory)