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Asus M4A88T-V EVO/USB3 880G Socket AM3

post #1 of 12
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has anyone got this board Asus M4A88T-V EVO/USB3 880G Socket AM3 as they are no reviews any where
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post #2 of 12
almost the same board as m4a88td-v-evo ( which i am using)........... but since the t-v-evo sports the SB710 southbridge rather than SB850, it doesnt have sata 6gbps ports. also the audio/lan chips are lower models (doesnt matter much) and the onboard video probably doesnt have the dedicated 128mb sideport memory.
    
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post #3 of 12
Quote:
Originally Posted by leopold1985 View Post
almost the same board as m4a88td-v-evo ( which i am using)........... but since the t-v-evo sports the SB710 southbridge rather than SB850, it doesnt have sata 6gbps ports. also the audio/lan chips are lower models (doesnt matter much) and the onboard video probably doesnt have the dedicated 128mb sideport memory.
Quick question... i just got same mobo as yours, and im now starting to oc my 1090t. However, cpu voltage spikes well beyond manually set 1.44v . sometimes it will get as high as 1.5v while stress testing (per cpu-z and siw monitoring).

c&q disabled, turbo core disabled, load line calibration enabled.

this has never happened with my previous oc's with other asus mobos. cpu voltage never went above manually set cpu vcore.

any problems like mine with your mobo or anyone else's?

settings:
fsb 200 x 20= 4ghz. cpu 1.44v and everything else auto. just oc'ing the cpu first, once thats stable, ill move on to cpu/nb and such.
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post #4 of 12
Have you selected the voltage input method as "manual" instead of "offset" ?
And also, when "load line calibration" is enabled, the vcore can and will rise above the manually set value, just to prevent voltage drop in case of high cpu load. Its quite natural and happens to me too. I have seen this board perform very well along with the 1090 or 1100 cpus. I must also add that a vcore of 1.5v (while cpu is under heavy load) on a 4+GHz OC is not that bad.
    
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post #5 of 12
Quote:
Originally Posted by leopold1985 View Post
Have you selected the voltage input method as "manual" instead of "offset" ?
And also, when "load line calibration" is enabled, the vcore can and will rise above the manually set value, just to prevent voltage drop in case of high cpu load. Its quite natural and happens to me too. I have seen this board perform very well along with the 1090 or 1100 cpus. I must also add that a vcore of 1.5v (while cpu is under heavy load) on a 4+GHz OC is not that bad.
as i stated above, vcore is manually set. ive also tried disabling load line calibration, and manually set vcore never climbed above set value, but quit a bit of vdroop.

just concerned about vcore being manually set to 1.44v and with c&q and turbo core disabled, all monitoring guages are showing vcore idling at 1.46v??

like i said before, with all other asus boards i've never had this problem with. vcore never climbed above manually set parameters with the same settings i am using with the m4a88td-v evo.

so it's not just me with this board anyone have a fix for this problem??

thanks for the reply, btw.....
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post #6 of 12
Thats the effect of the LLC... to compensate for vdroop, it always keeps the vcore a bit high, so the 1.46v is quite fine. It is meant to be this way, so the vcore read will always be a tiny bit above the set value. Trust me, it is fine. This board/chipset has all the OC potentials of a 890FX based board.
Since the phenomenon that you have pointed out is actually not a problem, there is no fix for it.
    
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post #7 of 12
Quote:
Originally Posted by leopold1985 View Post
Thats the effect of the LLC... to compensate for vdroop, it always keeps the vcore a bit high, so the 1.46v is quite fine. It is meant to be this way, so the vcore read will always be a tiny bit above the set value. Trust me, it is fine. This board/chipset has all the OC potentials of a 890FX based board.
Since the phenomenon that you have pointed out is actually not a problem, there is no fix for it.
thanks for the reply, but ive read some posts of others with the same mobo and nobody seems to have an answer to this. you say its normal, but this type of occurrence affects temps for sure. im currently priming, default blend, and multiplier goes up and down when it should stay at a constant x20 (cpu throttling. not good)

this leads me to believe that mosfets are overheating and voltages drop to compensate for the heat. dont know why this is happening because mofsets are heatsinked, plus i have a scythe gt ap-31 5400rpm/150cfm fan on the hyper 212+, which blows a great amount of transient air over the mofset heatsink.

ive oc'ed my 1090t on my old asus m4a785m, which didnt have a heatsink on the mofsets, and is a 4+1 phase board. manually set vcore NEVER climbed above set values, resulting in a stable 3.8ghz @ 1.41vcore OC, with max temps of 49c 12hours prime95 default blend.

im 2 hours into default blend on the m4a88td-v evo set on 200fsb x 20= 4ghz with vcore manually set @ 1.44 and LLC enabled. max core temp 64c so far and max vcore 1.54v. although none of the cores have failed so far, im not confident that it will finish all the iterations (which will take approx 11 hours) with these values and cpu throttling.

im starting to think that my 1090t has a better chance of reaching 4ghz stable on my old mobo with my current cpu fan and heatsink
Edited by piranhamoose - 2/16/11 at 7:40pm
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post #8 of 12
i have the m4a88t-v with a 955. i'm in the process of ocing too, currently at 3.7ghz (200 x 18.5). once i passed 1.4vcore, i had to disable LLC. voltage spikes on load were around 1.47v, obviously heating my chip up. after disabling, everything is good. i'm at ~1.416 vcore in bios. in windows idle is 1.404v and under load ~1.356v. load temp is ~50C (52C in linx). from searching on OCN, many people will either say LLC is not needed or that it helps a lot. but once you get to higher voltages, LLC should usually be turned off (from what i read and from my experience)
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post #9 of 12
t-v evo also has an 8+1 phase, not a necessarily huge downgrade.
lnewey6 have you experimented with either adding 1 DIMM or removing 1 DIMM, to run 2 or 4 DIMMs in proper dual channel? This doubles your bandwidth and even in most real world apps you see big gains
post #10 of 12
Quote:
Originally Posted by lnewey6 View Post
has anyone got this board Asus M4A88T-V EVO/USB3 880G Socket AM3 as they are no reviews any where
i have one like yours... however... im having a problem with the v-core...

cpu-z tells me that my vcore is 1.416... then 1.515 and so on... it goes from one voltage to the other...

how can i avoid that?? i dont want my cpu exploding right in front of me
     
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