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T1090 3.9 - 4.0Ghz Unstable =( 890FXA-GD65

post #1 of 18
Thread Starter 
CPU V Core- 1.45 tryed 1.46
CPU NB VV- 1.26 tryed 1.3
CPU NB - Atuo

Motherbord: MSI 890FXA-GD65

Ram V. 1.65
Timeing 9-9-9-24

Cant seem to get the system stable any help would be grate.
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post #2 of 18
I too had issues getting this overclock stable - on what looks like an almost identical system setup! (Check my rig in sig).
There are two ways to get that processor to 4Ghz. 1 is through a pure multiplier change. Keep raising the multiplier up and up and up till you get to 4Ghz. You will most likely need to go to 1.5 and I hope you got good cooling in your case. If you have not already installed a second fan on your Kuhler (to make a push/pull setup) then that's also a good place to go.

You can also LOWER you multiplier and raise the front side bus. If you use the search and look for 1090T or 1055T Overclock, there is a post with a nice video of a guy from some tech blog or something (NCIX I think - Im not familiar with them, maybe they are a component seller AND blog?) - and in the video the dude shows you exact settings he used. Obviously each chip is (somewhat) unique -and I had to go all the way up to like 1.515 or something to get a good stable 4.1Ghz -- I was able to lower it to 1.5 Volts to stick at 4.0Ghz though... But I notice on the MSI boards, in CPUID HWMonitor - it often says my voltage is at 1.54-1.58 no matter what I set the bios to. We both have good coolers, so just keep an eye on the temp, and the voltage hike shouldn't destroy your CPU.

To give you absolute specifics. I have my CPU voltage at 1.5000 in the motherboard, my RAM at 1.5 (its default) - all other voltages at default - and my multiplier is at 17, my "FSB" at 236. I made sure to set the multiplier on the "HT Link" lower than auto so that it stays around 2000 (I think mine is at 19xx). Give that a try. Its stable for everything EXCEPT prime over an hour. If you up the voltage by .0125 it gets Prime stable, but I was having NO issues in any game or in OCCT so I dont mind Prime not being stable. Prime is way more demanding than anything I do, and if I ever get a crash in a game or while doing anything else, I can always go up on the voltage a tiny bit and fix that.

Good luck and let me / us know how it turns out. It might take a while and you will probably spend a lot more time running stress tests than you will ever ACTUALLY stress the system, but that's part of the fun right? ^_^
Edited by Ayekalooter - 6/18/11 at 3:12am
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post #3 of 18
Thread Starter 
im like 1.46 and my Core V is 1.520V in CPU-Z. If i bump it to 1.5 will it be safe? I have a secound fan on my Cooler =) im 26C idle. what about the CPU NB and CPU VV NP ? what should that be set at? Thanks for the reply.redface.gif
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post #4 of 18
I left everything in my setup EXCEPT CPU Voltage (first setting in Motherboard BIOS) on auto. I notice on our board (MSI 890FXA-G65) the voltage always seems to jump around on HWMon, but other programs show it at a consistent voltage. HWMon always shows me more voltage then I set in the motherboard. Frankly, going at or above 1.5 volts WILL decrease CPU lifespan, but the best I can discover from readings of paranoid overclockers is that it takes it from something like 5-10 years average lifespan (not 100% sure but based on previous processors - Phenom 2 x6 hasn't been out long enough to know natural lifespan for certain) to 3-7 years, average estimate.

And to make things even better (for us) we are on a cool water setup, so our temps don't get outside the "green / ok / good" range. What this means is we MAY not even see such a large decrease in life expectancy - but of course this is speculation based around solid logical information but no observations.

As for if or if not you should even trust HWMon's voltage read-outs -- that's iffy. What I can tell you though is under heavy load, I get to 1.6 in HWMon and I don't have an issue with that. Its a decision you gotta make on your own terms though. If I was at 1.6 and temp was above 62 C that would be a different story -- but honestly it never surpasses 56C even if its left running for hours at max load - and it peaks at 1.6 but it doesn't hang there forever. Why not give the 1.5 Volts a try, and if you notice something odd - less stability - way high temps - a slight burning smell (lol) then reboot and lower. Frankly, other users with less amazing coolers are taking it to BOIS 1.55V and doing okay - I think for us its not an issue~

Just my two cents though --- your mileage may vary --- etc etc~

PS: I HAD at one point upped the NB voltage (the second one in the BIOS list) and it increased temp a bit on the NB (I believe its TMPIN1 on our board) but after getting my overclock stable - I went and slowly lowered it one click at a time till it was back on auto and it was still stable --- I came to the conclusion our board does an okay job on auto with that specific setting~
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post #5 of 18
Thread Starter 
Ok im going to give it a try ill set it to 1.5 and CPU NB VV atuo. Im not worryed about temps only mobo temp our coolers seem to be over kill if anything its the motherbord NB im worryed about. Thanks for everything ill be testing for the next few days and everything gos well I will post =) +REP
Edited by Zackmustdie - 6/18/11 at 4:08am
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post #6 of 18
Quote:
Originally Posted by Zackmustdie;13916396 
Ok im going to give it a try ill set it to 1.5 and CPU NB VV atuo. Im not worryed about temps only mobo temp our coolers seem to be over kill if anything its the motherbord NB im worryed about. Thanks for everything ill be testing for the next few days and everything gos well I will post =) +REP

Thanks a LOT for the rep --- Im still new and every point helps! I would appreciate it if you would either subscribe or bookmark or remember this thread and come back and let me know how your overclocking adventures go. I think the best advice someone gave me a while back when I was first starting was to "try different things out" and "don't worry too much about breaking things". Everything you have is under a good warranty and as long as you never mention "overclocking" if you need to do an exchange, these companies (AMD and MSI) seem to be pretty good about doing exchanges. Not that you are likely to need to do an exchange, but if mentally you need that extra layer of protection (I'm not really risking anything other than shipping costs) then its there for your ease of mind.

Good Luck and Happy Overclocking!
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post #7 of 18
Back down your NB, memory and ht link. Keep them at stock setting or lower while trying to overclock the cpu. When you get the cpu stable than mess around with the other stuff . But overclock the cpu first and go from there. I would just change the multi for the cpu to show the 4.0 in the bios and set the volts to 1.45v. The 1090T should run 100% stable with that Voltage.
Gl hope this helps!
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post #8 of 18
have you tried in overclocked with just using the multiplier. For example in the bios set your multiplier to 20.5 and your front side bus to 201 MHz. Set your CPU voltage to 1.488 V keep your HT as close to 2000 megahertz as you can. Back your Northbridge frequency down a little bit in your Northbridge voltage should be right around 1.34 V 1.38 V. Also keep your memory timings stock. Try that and see if that works and it doesn't try some other options. As with any overclocking overclocking is completely trial and error you find yourself trying and trying more into you reach the ultimate goal of a stable overclock Patience is the key.
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post #9 of 18
:*( This makes me sad as I was planning to buy this board. . Might just get something else instead . . .
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post #10 of 18
Thread Starter 
I just carshed at 3.9 mad.gif . so I put it from 1.50 to 1.48 VCore. Ive crash with 1.45 to dont think its the CPU voltage

Ram is 9-9-9 24 T1 Ram V 1.65
CPU-NB atuo Tryed 1.3 still crash
NB-atuo

Maybe its the Ram im not sure but ive crashed at this OC with my lastbord.
Only stable at 3.8 =( ill go back to 3.8 run some test to rule out the ram i guess.

My screen freezes on Aion, could that be the video Card OC and not the CPU because it dosent BSOD Image just sticks and the computer dosent restart i have to use the kill switch.
Edited by Zackmustdie - 6/19/11 at 9:00am
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