Gigabyte GA-P67A-UD5 Discussion Thread

[FL00D]

Sorry guys been out of town for the weekend...

@Falkentyne

My RAM is right on the edge of being able to run 2222 @ 1.64 bios 1.654 ET6 but with the JZ BIOS GB adjusted the voltage so you needed to give 1.66 BIOS to get 1.654 ET6 & although it reads the same just isn’t longtime stable in prime!! if I bump to 1.68 ET6 reads 1.68 & its fine but as I cant find any more RAM performance with that BIOS I just as well use what I know F5x.

The B3 BIOS's are pretty much the same for me... no benefit to me, the new one with the 10 load ine levels is also no better for me vcore either droops to far or overshoots more than ever depending on level. In otherwords Its worse for me as the vcore is all over the place.... bear in mind this is not scoped or DMM measured just ET & CPU-Z but its enough for me to make a decision.

@ FL00D

I don’t think there's any literature that says 1 card = x voltage 2 cards = x voltage & I'm fairly sure I didn’t mean to preach to anyone that PCH should be x but I find it helped me to raise it. Bear in mind my rig is @ 5G DDR 2222 & my card is clocked over 900 x 1400 so maybe PCH voltage has more impact on my rig as its running quite high/edgy.

My advice would be to try sticking it to the PCH as it wont hurt especially on B3

Cheers for your help everyone.

C-N,
I know you did not mean to preach about raising PCH. Sorry if I was a bit ambiguous.

[AMD_Freak]

got a question, did some testing today to drop temps a little now summer is about here and noticed some cores are warmer then the others as much as 8c
weak core or bad mount, normal? the amb temp is 32c/79f- 4.53ghz@1.275v bios,/QPI/VTT@1.76

Running temps

Idle temps

[C-N]

noticed some cores are warmer then the others as much as 8c weak core or bad mount, normal? the amb temp is 32c/79f- 4.53ghz@1.275v bios,/QPI/VTT@1.76

The 4 chips I have had have all had some difference, my current 2500K is as much as 10oC on one core under load & I believe its sensor is not reading correctly as at idle in BIOS its temp is lower than ambient with EIST/C1E enabled.

P.S Your temps look great to me considering the ambient... hot hot

[simon747]

New ud5 build from old ud4...here are some pics

Kinda bummed out!

Just got my replacement b3 ud5 as my ud4 had cold boot issues with any setting and bios with pll override enabled. Well, exact same thing with ud5 b3, can only avoid cold boot problems if I disbale pll overide and that only gets me 4.5

Internal CPU PLL Overvoltage hates me. I can't get above 45x without it, but my computer intermittently cycles power on boot if the setting is enabled--which is more annoying than not having above 45x. I've tried all b3 bios, stock and betas. Doesn't matter what voltages or other settings I tweak, as long as CPU PLL Overvoltage is enabled my PC does the aforementioned power cycling every other cold boot or so.

I have followed the advice on these forums using f3c, making the base bios and back-up bios match, cleared cmos, but STILL the same cold boot issues as on my ud4. Stable as can be in windows at 4.7-4.8, all stress tests are fine, memtest is fine, tried cold boot with memory lower speeds 1066, 1366, still has the same cold boot issues. Board is fine in all other respects, just see no point in buying an unlocked cpu that is stable in windows, but can’t go past 4.5 due to boot problems due to bios issues! Vcore is 1.34 at 4.5 and 1.37-1.38 max to get to 4.7-4.8, which is all the oc I need for what I am using the PC for, which is the annoying game of FSX

Any help, this is pretty upsetting as this is my second gig board now with the same issues that have been happening since January! Is there nothing gigabyte can do to resolve the nasty cold boot problems that still exist on stable b3 overclocks?

[stasio]

got a question, did some testing today to drop temps a little now summer is about here and noticed some cores are warmer then the others as much as 8c
weak core or bad mount, normal? the amb temp is 32c/79f- 4.53ghz@1.275v bios,/QPI/VTT@1.76

QPI/VTT@1.76 ?!
Use HWiNFO32 instead of System Info and install CPU-Z 157.1.

[Falkentyne]

Ok first of all,
Please flash to the NEWEST beta (F3G) for the UD5
This will stop the boot loops when you enable PLL Override.

F1, possibly F2, and all the B2 version betas had weird bugs when PLL is enabled.

Those bootloops are fixed on F3G beta.

[simon747]

Ok first of all,
Please flash to the NEWEST beta (F3G) for the UD5
This will stop the boot loops when you enable PLL Override.

F1, possibly F2, and all the B2 version betas had weird bugs when PLL is enabled.

Those bootloops are fixed on F3G beta.

Ok, so there is an improvement from f3c? Thanks for this

I thought the only difference between f3c (which I have with cold boot issues) and f3g was:
'Fix: remove Floppy Support
Fix: BCLK 100'

Will there be any differnce between f3c and f3g in respect cold re-boots with pll enabled?

[Falkentyne]

Well for what it's worth, I didn't have any boot loops with F3C with pll override enabled. But I didn't do that many boots with it enabled. But at least I was able to SAVE bios settings to enable it. Back on F1, when I was, for example, at 4 ghz and I decided to set it to x50 and enable PLL override and "save and exit", it was like a 50/50 chance if the board would boot up at 5 ghz, or would turn on, turn off after about 10 seconds with no screen (no POST), turn on again, show 34x100, then turn off again, turn on and say "system has been reset due to overclocking or error in voltages", then TURN OFF AGAIN right after that screen, then turn on, and then finally allow me in the BIOS.

I never saw this with F3C.

I did several more more vcore settings with F3G and setting various voltages in BIOS around 1.45v to 1.55v with PLL Override enabled, than I did with f3c, and each time I set them, it accepted the settings, and just rebooted normally. I never saw it boot loop (well, not yet).

The only (three) boot loops I've gotten with f3g were when I pressed the RESET button on the case.

[acebmxer]

Ok, so there is an improvement from f3c? Thanks for this

I thought the only difference between f3c (which I have with cold boot issues) and f3g was:
'Fix: remove Floppy Support
Fix: BCLK 100'

Will there be any differnce between f3c and f3g in respect cold re-boots with pll enabled?

Gigabyte does not all ways list ALL changes made to a bios. Only ones they feel are a MAJOR change. What they think is a MAJOR change may not be MAJOR for all people. Always suggested you use the latest bios for Gigabyte boards.

[simon747]

Ok, guys, thanks for the help; testing f3g now. Hope it starts in the morning Working well in stress testing and warm boots thus far! Will let you know how it goes.

[AMD_Freak]

QPI/VTT@1.76 ?!
Use HWiNFO32 instead of System Info and install CPU-Z 157.1.

Sorry bout that Stasio I seems to have missed a 0 is 1.076 better

thanks C-N I was kinda bummed about having to remount my cooler