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[Official] Gigabyte GA-990FXA-Series Owners Thread/Club - Page 715

post #7141 of 12377
Quote:
Originally Posted by Recr3ational View Post

Well sir.
Thanks for that, temps not an issue really, you've saved me a lot of money. biggrin.gif
Now I feel safe going over 1.55!


YW man thumb.gif

Now you can push your 8350 even more biggrin.gif

I do want to note that i am in any way not responsible for if anything goes wrong this information comes from AMD themselves so if you fry your chip its on you LOL

Happy overclocking and post some benchmarks of your performance and settings if you will thumb.gif
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post #7142 of 12377
Quote:
Originally Posted by hurricane28 View Post

YW man thumb.gif

Now you can push your 8350 even more biggrin.gif

I do want to note that i am in any way not responsible for if anything goes wrong this information comes from AMD themselves so if you fry your chip its on you LOL

Happy overclocking and post some benchmarks of your performance and settings if you will thumb.gif


+REP
Seriously man, thanks alot. I was just about to buy a rev 3 UD5.
Saved me some money, now it can go towards the gpu blocks smile.gif

Thanks again. When i get everything stable, i'll post the results.
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post #7143 of 12377
Thnx man thumb.gif

I hope we can compare our results soon biggrin.gif

If you have any questions pls ask.
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post #7144 of 12377
Quote:
Originally Posted by Recr3ational View Post

Hey guys,
I have the UD5 and FX 8350.

Recently I added a custom loop in, and because there's no LLC on a rev 1.
My overclocks are well unstable.
How do I compensate vdroop without LLC?
This is the first time building a rig so I hope one of you veterans can help me.

Quote:
Originally Posted by Recr3ational View Post

That's the thing I was worried about, I don't really want to go higher than 1.55 as I got told it's the maximum the 8350 should do.

At 1.55 I think maximum i can go is around 4.6. So it's pointless me adding a loop.
it is not so much about exceeding 1.55v as hurr said it is about temps. however that would be 1.55 AT LOAD not idle

volts do not create heat. amps create heat. i can put 200k v through a wire @ .00001a and not get any heat @ 1+a that would be massively different, and amps are pulled from said device as it needs not pushed from the wall/power source. this is why when your system idles it consumes less amps then when @ load, your pc need more amps and pulls more.

if you need help ocing without llc i can easily point you to a few ppl.

basic thing to keep in mind. use occt ( monitoring ) or hwinfo or w.e. ( do not recommend using hwmonitor as it is known to be buggy on amds ) throw prime up and see what your volts goto that is your voltage after vdrop and what you need to worry about. i would not push 1.65+v though even if i had the head room for extended periods of time

several of us have taken our chips to thermal shutdown a few times and ours are not hurt in any way. that said dont stress your pc @~ 5.1+ghz ( without a golden chip ) and you will be fine
lastly be prepared there are voltage walls that increase exponentially @ 4.7,4.8,4.9....... ect ect

please let us know if you need ANY HELP !~
Quote:
Originally Posted by hurricane28 View Post

there are a lot of story's about the max voltage of the 8350 also about temps there are a lot of crazy story's and i want to make something clear.

1.55 is not the max voltage of that chip and those who say that has no clue on what they are talking about clean and clear thumb.gif

i called AMD some time ago and they said that it has nothing to do with voltage but the temperature of the chip.

the max threshold of these chips is 90c and at that temp it shuts down to prevent damage to the chip, the max 24/7 varies from chip to chip but AMD advised to stay under 65c for 24/7 usage thumb.gif

For short periods of time the chip can handle 70+ but that is only for benching or for short periods of time.
so your saying amd does not know what they are talking about?
http://sites.amd.com/us/Documents/AMD_FX_Performance_Tuning_Guide.pdf (second to last page )

however this very clearly states ON AIR
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post #7145 of 12377
Thanks friends, thumb.gif

for about yours recomendations. Now playing at games (crysis 2) the max temp is 50ºC. I leave so. Yes Crysis 2 , does not use 8 cores. When play BF3 or Crysis 3 I will check the temps.

My configurations for to help to people:

CPU : 4.420 mhz
Vcore: 1.33-134 v
CPU-NB: X + 0.100v
HT Link: 2.600Mhz
NB Link:2.600Mhz
Memory: 1600Mhz (9-9-9-25 2T )

With this configuration my computer runs well thumb.gif
post #7146 of 12377
@ Mega Man

are you recommend cfv -z over ud7 ? or am ı use ud7 ?
post #7147 of 12377
really up to you

CVFz is easier to oc imo

u8d7 has quad fire built in. i made mine work with a riser on my CVFz though
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post #7148 of 12377
Quote:
Originally Posted by Mega Man View Post


it is not so much about exceeding 1.55v as hurr said it is about temps. however that would be 1.55 AT LOAD not idle

volts do not create heat. amps create heat. i can put 200k v through a wire @ .00001a and not get any heat @ 1+a that would be massively different, and amps are pulled from said device as it needs not pushed from the wall/power source. this is why when your system idles it consumes less amps then when @ load, your pc need more amps and pulls more.

if you need help ocing without llc i can easily point you to a few ppl.

basic thing to keep in mind. use occt ( monitoring ) or hwinfo or w.e. ( do not recommend using hwmonitor as it is known to be buggy on amds ) throw prime up and see what your volts goto that is your voltage after vdrop and what you need to worry about. i would not push 1.65+v though even if i had the head room for extended periods of time

several of us have taken our chips to thermal shutdown a few times and ours are not hurt in any way. that said dont stress your pc @~ 5.1+ghz ( without a golden chip ) and you will be fine
lastly be prepared there are voltage walls that increase exponentially @ 4.7,4.8,4.9....... ect ect

please let us know if you need ANY HELP !~
so your saying amd does not know what they are talking about?
http://sites.amd.com/us/Documents/AMD_FX_Performance_Tuning_Guide.pdf (second to last page )

however this very clearly states ON AIR


No but the most of us know that these chips can handle more voltage than 1.550 and can handle more than 62c, you know that Mega MAn thumb.gif
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post #7149 of 12377
Quote:
Originally Posted by hurricane28 View Post

No but the most of us know that these chips can handle more voltage than 1.550 and can handle more than 62c, you know that Mega MAn thumb.gif

You're both right I should say. I myself have hit more than your so called "temp limit of 62 degrees". To be honest, throttle never happens before the chip hit 80 for more than a few seconds with mine. I even run mine with temps hitting 90s. But like Mega Man said, it's okay if it's just for benching.

Thermal shut down happened on me once. That's when I hit 89 right after doing a Cinebench CPU test. System shut down halfway the test. If you've been doing Cinebench, you'll know for a fact that even if you have Primed your chip, You'll hit higher temps when doing some rendering. That man, should be your concern. Gaming can't push your temps to the wall. Even if you've hit past 65 just to get your chip stable at let's say 5 GHz, you don't have to worry as long as you have already set your goal on the things you will be doing with your chip.

If your rig is involved with serious rendering, It's advisable to stay below that 65 degress wall when stabilizing your chip. As we know for the fact that rendering will push your chips past any Stress softwares out there.

If gaming is just your thing, you will never hit the temps you'll get with prime or whatever.

One thing to note too, people have been preaching about that temp limit for the chip. And one man already said this, "you've been preaching about that number (62 degrees I believe) to everyone, yet you also have the nerve to run your chip with Prime for 24 hours? or even just 7 hours? and say you never hit 62?, but how many degrees far from 62 were you for all those times? 5 degrees less? Let's be realistic people.

62 for sustained operation, the way my head understands this is that, at extreme cases, you should not run your chip past that temps for operations that require hours to complete. Temp spikes will always happen for a short time. But if it's sustained for hours, truly your chip will die. (assuming no thermal shutdown or protection causing your chip to throttle down happens)

"Also, voltage never create heat. Amperes or current do"??

Man you should also point that current is directly proportional to voltage and power. Power, my friend, is what gives you heat. You should not point out one and neglect the other.

P=VI ; it only happened that your voltage do not wander far from the setting you made. +- 0.1 volt at the maximum while your current depends on your load. But it's wrong to point out that current is the one creating your hight temp.

You also made a very EXAGGERATED example on how current and voltage relate to heat. 0.00001 Amp and 200 kilovolts would give you a power of what? 2 WATTS? that 2 watts my friend will not really give you enough heat.

what about the other way at same power. 2watts with 1 ampere as you said, will need just 2 volts. Can you say that at exactly the same power, increasing your current 10000 times will put out more heat when voltage dropped from 200K volts to 2 volts? NO!

In your example, assuming the voltage was keep the same at 200Kvolts, and current jumped to 1 ampere, MY FRIEND, your current jumped 10000 times. Don't you expect a 10000 times jump in power too? And 10000 times more heat?

Again, the other way around, 0.00001 ampers with 10000 times more voltage, are you saying the heat at increased current will be higher than when voltage itself went up at the same factor? rolleyes.gif

So give a more meaningful example my friend. At 1.55 volts and (assuming the chip handles or can pulls out 200 watts like it's rated TDP) again, assuming TDP=Power Draw (they are way too different that explaining this exactly will be longer than your screen can display), current draw will be =129.03 AMPS!!!

What if you experience Vdroop, and your voltage dropped from 1.55 to 1.50 volts, your current will rise to 133.33 AMPS!!! That's a 4.3 amperes increase. how much more heat will that give you? too small my friend.

That again is a problem. You see, in any electronic system, current draw is always limited by other components. And once your voltage drops, don't expect your chip to pull out the same amount of power or more current. Since voltage will NOT ever drop when there is plenty of current.

In your MOBO and CPU for example, If enough current can be drawn at low voltages, your chip will still run since it is assured that voltage will not drop off its value even when your chip will run on full horses. But because that thing never happens, you need to increase your voltages. Since other components limit the current draw. That will put out heat since voltages like I said, like current, is directly proportional to POWER.

Bottom line, POWER, VOLTAGE, CURRENT are all in a circle. But in an electronic system, current is the one limiting factor. That is why voltage has been given an option to be increased when power is needed.
Edited by mus1mus - 9/27/13 at 5:18am
post #7150 of 12377
no your wrong. on a few things

1 i gave a simple idea not trying to get more involved in it for a reason

2 your chip EXCEEDS the tdp on ANY OVERCLOCK.

3 VOLTAGE does not, never has and never will creat heat. amperage is the ONLY THING that does.

the only reason wires or anything is rated for voltage is to ensure the insulation it self will allow it to now jump through it.


that is why the same wire can be used for 12v or 600v i would love to go farther but unfortunately i would be late to work i would love to continue the discussion though.

i will add the "correlation" between them is that the more volts you have the less amps are needed for the same work

IE 1v +1a = 1w
2v+.5a =1w
but 2000v +0a =???? that is right 0w so NO HEAT ( again not talking about cpus as again i am trying to keep things SIMPLE )

and also Vdrop happens NO MATTER what size source you have.
ever turn on a vacuum or microwave and see your light dim? how much of a source or how much greater of a source do you think you have from the power company? granted it is lessens with more availability but it still happens, and in a pc you could have what ever size power source you want.
the VRMS will still have voltage drop as they are what matter NOT the power source. ( guess what i have a 1250w psu and usually have 2 of my gpus hooked to a 750w as well, still get the same vdrop even when running only CPU intensive programs ) or are you going to say 1250w is not enough ?
Edited by Mega Man - 9/27/13 at 6:54am
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USS CLM8-1701
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AMD FX-8350 Gigabyte 990FXA-UD7 R7970-2PMD3GD5/OC  R7970-2PMD3GD5/OC  
GraphicsGraphicsRAMHard Drive
R7970-2PMD3GD5/OC  R7970-2PMD3GD5/OC  F3-2400C10D-16GTX  OCZ Agility 3 120GB  
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 120GB  Seagate Barracuda 1TB  Segate Barracuda 3TB Rosewill RCR-IM5001 USB2.0 75 in 1 internal Car... 
Optical DriveCoolingCoolingCooling
Pioneer BDR-208DBK Blu-ray Writer Swiftech H20-220 EDGE HD Liquid Cooling Kit Swiftech Komodo 7970 Swiftech MCP-35X2 
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Swiftech MCP35X2 Heat Sink Swiftech MCP35X Reservoir Swiftech Komodo 7970 Swiftech Komodo 7970 
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Alphacool 240mm XT45 Alphacool 120mm XT45 Alphacool 120mm UT60 FrozenQ PC Mods UV Meteor Light Limited Edition... 
CoolingCoolingOSOS
Koolance Radiator Mounting Bracket with Quick-R... Swiftech Komodo 7970 Windows 7 Windows 8  
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Swiftech Apogee HD Windows 7 Windows 8 LG E2242 
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