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Preview - Asrock 990FX Fatal1ty 990FX Professional - Page 19

post #181 of 416
Quote:
Originally Posted by 033Y5 View Post

cool thanks will double check there are off

FWIW, I've tested with and without C&Q and C6 disabled and I get no squeal either way on my mobo.

I have also confirmed a V1.90 BIOS Bug that Asrock will be fixing in an updated BIOS. If you run the RAM @ 2133 MHz. or possibly higher using the BIOS fixed RAM frequency options, the BIOS changes to the CPU-NB above the default 2200 MHz. don't actually change the CPU-NB frequency. You can check this with CPU-Z or AMD Overdrive to confirm the actual CPU-NB frequency. RAM frequencies of 1600/1866 MHz. do allow you to set the proper 2400/2600 MHz. CPU-NB frequencies in the BIOS.
post #182 of 416
I have just replaced my faulty Sabertooth R2 with one of these. All seems good so far. Are there any particular idiosyncrasies I need to keep an eye out with this board?
post #183 of 416
what cpu are u using and try running prime or ibt and listen for squealing or hissing when under high loads
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post #184 of 416
Quote:
Originally Posted by laurie View Post

I have just replaced my faulty Sabertooth R2 with one of these. All seems good so far. Are there any particular idiosyncrasies I need to keep an eye out with this board?

If you plan to push the OC limits, you'll want to have the current V1.90 BIOS and the V1.80 BIOS on a flash drive so when the system hangs and the BIOS goes into a "stupid loop" you can install the other BIOS and then switch back to V1.90. Otherwise the system will not actually make the BIOS changes you set. If you're not pushing to find the highest CPU/RAM OC then you won't need this option.

If you are running RAM @2133 MHz. or higher then you'll need to contact Asrock about a modded if you desire to increase the CPU-NB above the default 2200 MHz. While the BIOS will allow you to change the settings, it doesn't actually make those changes with BIOS V1.90 (and possibly earlier BIOS versions) when the RAM is run @ 2133 MHz. and higher.

You will find when stress testing under P95 or similar with an overclocked, over volted 8-core FX processor that the VRM circuit will cut in and out if the VRM overheats. This is to protect the VRM circuit from burning up. This will only occur in stress testing when you run the test for longer than ~45 minutes with good CPU cooling. It will happen sooner with low CPU cooling.
Edited by AMD4ME - 3/6/13 at 12:01pm
post #185 of 416
Thanks very much for the info! It came with 1.90 and seems pretty stable so far. I'm only running my FX3850 at 4.6 so I'm not looking to push too hard. And my RAM gets upset over about 2000Mhz so I keep it around 1900Mhz.

Thanks again for the info. I appreciate it.
post #186 of 416
^^^ Glad to help. The Asrock 990FX Fatality Pro is a pretty good mobo. The BIOS doesn't have all of the superflous adjustments that Asus has, that don't actually improve performance or overclocking. Asrock support seems to be a little better than the other Asian mobo makers IME though there seems to always be a language barrier of sorts.

Have fun with your new system.
Edited by AMD4ME - 3/7/13 at 2:33pm
post #187 of 416
ive just purchased this mobo online, it has a 12+2 phase design and plenty of high end features. price comparison its pretty good, and far cheaper than the crosshair. ive been reading plenty of reviews and cant discover whether they got rid of fatalitys picture in the bios screen... so have they with the new bios?

im hoping to purchase an 8150 or 8350 next month sometime, but for now will be overclocking my 4100 to death. hoping to reach 5ghz
post #188 of 416
Well, they're kick him off I guess in latest BIOS...
I've same mobo, and as I have used Saber until last week, with setting of 18*250MHz and my RAM at 2000MHz sharp...now, there's no chance I could reach anything remotely alike...Saber gave me ability to use 250MHz FSB, with 2500HT and 2500MHz NB which run my RAM at 2000...Asrock have no hope to shift one single MHz on the FSB, doesn't even boot, it just turn itself off, fans are on, but no POST...
Now, I am using it at stock FSB of 200MHz and use only a multi to OC my CPU...RAM has no chance in the world to reach previous settings...
So, any aid would be appreciated...
post #189 of 416
Thread Starter 
Maybe try higher FSB instead, Asrock mobo BIOS has FSB holes. I previously did 300FSB on a 1055T if you read this whole thread.

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post #190 of 416
Huh...it's that frequency that fits purpose absolutely right where I want it...300 defeats the purpose..coz I just want it to run at 250 FSB...huh...any clues?
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