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Preview - Asrock 990FX Fatal1ty 990FX Professional - Page 15

post #141 of 416
Valnjes-

If you actually have an English speaking engineering contact at Asrock that will answer my questions, please PM me their e-mail as you advised you would.

Thanks.
post #142 of 416
Yes I do.
post #143 of 416
Thread Starter 
Readying the Asrock Fatal1ty 990FX Pro for Vishera


UEFI P1.80
dated July 2012 which is AM3+ BD savvy and possibly PD savvy as well

121027200622Copy_zps8c96e15a.png



UEFI P1.90
- released Oct 2012 specifically for PD

121027153113Copy_zpse6c7dfd3.jpg



Mounted!

IMG_4493Copy_zpsd651cdc4.jpg

IMG_4494Copy_zps118441d0.jpg



Tested!
- 300HTT is no problem, all ready!

990FX_Fat_1055T300HTT39GHz_10xLinX_73GFlopsCopy_zps7c023580.png



Notes
- P1.90 and latest beta L1.91A are the official PD BIOS but they are clearly early versions with quirky mobo/RAM initialization issues on my 1055T, Asrock BIOS guys just got to work much harder on them!
- for now, suggest sticking to P1.80 which officially supports AM3+ and BD and is a lot more stable in comparison
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post #144 of 416
I love my 1.90, use it since day 1. Works fine with all of my RAM modules (Kingston HiperX Blu 2x 8GB 1600MHz and Patriot Viper 2133MHz).

The L1.91A i must mod first (with the SLIC2.1 for my DELL). tongue.gif
post #145 of 416
Thread Starter 
That's great to hear cos the new PDs are much more similar to your BD than my Thuban so hopefully, P1.90 will fly with the incoming PDs.

No biggie, will probably flash to P1.90 or the newer BIOS when the new Vishera chips are here. Anyway, flashing the BIOS back and forth on the AMD side is much less painless than Intel (where the Intel ME version must also match the BIOS).
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post #146 of 416
Well, with Instant flash, You could flash ANY EFI that supports Your CPU.

You don't have a BD/PD CPU, so You can flash all EFI's since 1.00.

You can download them from my Box acc.
https://www.box.com/s/1jpu0i86nmjohhnsge6z
post #147 of 416
Hey guys. I have had my fatal1ty board since August of last year and its had a Phenom II x4 840 @ 4.3ghz and a FX8120 @ 4.5ghz. Now sits in its precious socket is an FX 8320 @ 4.6ghz (can benchmark all the way to 4.8 stable) I have always had bios 1.90 with Vishera and wondered if you guys think that maybe 1.80 is better for now? Also LLC question. On my board disabled causes voltage to rise considerably almost too much (say 1.4875vcore in bios and goes up to 1.52ish vcore under load) When I set mine to 25% that keep the loaded voltages almost exactly what i have set in bios and the other settings give me bad vdroop. This seems different from what I have seen with other fatal1ty owners. Is there a fatal1ty owners thread? sorry 4 all the ????'s
    
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49" Sceptre 4k 3820x2160p Samsung 23" 1080p 120hz  Thermaltake tt e-sports Mechanical Cooler Master Silent Pro 700 Watt Modular 
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post #148 of 416
Asrock advises that on the Fatal1ty 990FX mobo Vishera/Piledrive is supported from BIOS v1.7 though it looks like v1.80 and v1.90 may have more complete Vishera/PD CPU identification? These last two versions are suppose to have more Win 8 fixes also.

As far as LLC is concerned - and this can change with BIOS version, folks on other forums report that with the Fatal1ty 990FX mobo, 50% LLC works the best. This may have been changed with the different BIOS versions. I think that the LLC design being implemented by different mobo makers on different model mobos, varies so you may need to literally test with each BIOS update to see what works best for your particular mobo.
post #149 of 416
I'm just getting started testing this mobo with the FX-8350 but I have discovered that the LLC function is completely FUBAR. To be more specific, on my mobo using BIOS v1.8 I get the follwoing results:

When manually overclocking using the following BIOS CPU vcore options:

"Disabled" - uncontrolled increase in vcore under 100% load stress testing

"Auto" - results in the vcore voltage climbing WAY higher than set or needed under 100% load stress testing, resulting in excessive CPU temps

25% LLC - this is the best vcore regulation of all the choices. It increases the set vcore voltage ~ .010-.02V

50% LLC - this LOWERS the vcore voltage about .04V under 100% load, stress testing

75% LLC - this Lowers the vcore even further, with ~.06V droop the CPU will error out unless you set it at a ridiculously excess base vcore voltage

100% LLC - not even usable from my testing as the vcore drops .08V under 100% load, stress testing

Whatever they are trying to do it ain't working the way it should. I also noticed that even with all energy saving options disabled, the VRM would drop down to 4 or 8 phases when the voltage spiked up with the inappropriate LLC regulation. There was no issue with a steady 12.17V supply to the mobo so this is purely a VRM / BIOS issue.

By far the best and only vcore option on my mobo with V1.80 BIOS, is the 25% LLC which does a pretty good job of holding the vcore slightly above the set voltage.

It's worth noting that Asrock recommends in the BIOS that AM3 CPUs use 50% LLC and AM3+ CPUs use 100% LLC when using "auto" mode to OC. DO NOT DO THIS or your system will crash way before you reach the real capabilities of the CPU. They also recommend to use "disabled" when manually OC'ing. This I agree with and may be better than "auto" even without overclocking. Be advised that if you select the "disabled" option in manual mode, the vcore will skyrocket and can fry your CPU in a matter of minutes when stress testing. Their LLC is not working properly IMO.

It was also disheartening to see that in spite of the large Fatal1ty heat sink on the VRM, it still Throttle's the CPU frequency when it is under 100% load and the VRM circuit gets hot. This is unaccpetable IMO and not what should be expected of a "...12-2 phase VRM circuit designed for Overclockers..."

This is just the beginning so I will likely find many other nuances before I'm thru over the next few weeks, as time permits.

Hope this info. helps other Fatal1ty 990FX users.
Edited by AMD4ME - 11/2/12 at 7:38am
post #150 of 416
Still testing. I can report BIOS v1.90 finally does away with John Fatal1ty's face in the BIOS area. In v1.80 you can disable his face on boot, but not in the actual BIOS screens. I guess Asrock must have gotten enough hate mail to finally delete his face in v1.90.

I've been running 4.8 GHz. in P95 and OCCT without errors. The VRM circuit does overheat however after 20 minutes or so of P95 and then it drops the vcore, CPU frequency and number of VRM active phases, which is not good at all. You can run 3DVantage, PCMark 7, etc. without even putting a real strain on this CPU however.

It's worth noting that in actual use, no software uses 100% of all eight cores for any length of time, so the VRM circuit is unlikely to overheat even in heavy video gameing/editing, etc. Stress testing is just that. It's intended to push the hardware to 100% of it's capabilities.

With a highly over-clocked FX-8350 it's no surprise the VRM on this mobo is pushed to the thermal limit as are many other mobos. Nothing bad happens when it hits the thermal interrupt, other than the CPU frequency drops for a few seconds so the VRM circuit can cool a bit, then everything resumes as normal until it hits the thermal limit again. On some brands/models of mobos the VRM circuit just frys itself and you're SOL and need to buy a new mobo.
Edited by AMD4ME - 11/6/12 at 7:06pm
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