AMD FX OC'ers Club

[Johan45]

Johan45 - what liquid other than default liquid do I need from AX360's FrozenCPU page? None? Any? I think i'm not gonna wait til i get email from SideWinderComputers & just get the kit from FrozenCPU. XSPC EC6 Coolant - 1L Blood Red & Free Dead-Water Biocidal Drops (default distilled additive) or just plain Dead-Water?

Sorry I missedthe dit Yutja. My opinion is nothing but distilled water and a kill coil or biocide. Dyes typically will have some sort of solid particulate in them and cause you to empty your loop more often. Keep in mind when building that you will need to drain, flush and refill that loop twice a year. If you really want some colour get coloured tubing.

@URBAN303 If you ambient temp is 30c there's no way your load temp can be the same, just not possible. You should use something like HWMonitor free version and check package temp ( keep to 60c or lower) and socket ( 70c or lower) while your system is under load. That temp of 70c at radiator makes me wonder if you're seeing the right temps.

 

[YautjaLord]

Johan45 & the rest, thanx a lot guys, but it'll have to wait: I didn't had time, nor moneys to invest into anything I mentioned, but I still wanted liquid cooling kit; resorted for closed loop, in this case Corsair's Hydro series H110. Hey, it's still counts as water cooling, right? lol Will just have to take care of ambient room temp & temp inside the case, but still got that covered, no sweat. According to the forums I visited, max [stable] OC people could reach with that FX-8350+H110 combo was ranging between 4.7/4.9GHz. Close enough to 5.0GHz. See what I could squeeze out of my 8350. Thanx for all the input people, will definitely know where to look for answers, once get myself some better liquid cooling & sh*t.

 

[URBAN303]

@URBAN303 If you ambient temp is 30c there's no way your load temp can be the same, just not possible. You should use something like HWMonitor free version and check package temp ( keep to 60c or lower) and socket ( 70c or lower) while your system is under load. That temp of 70c at radiator makes me wonder if you're seeing the right temps.

I have a material Rheobus and my sensors are arranged thank you. It does not do every day 30 ° C in the room lol but more summer approaches more the temperature approaching and even exceeding it. Late July and early August will be 35 ° C day and night and sometimes more I love the weather but not the heatwave so Air Conditioned in the room requires (but for me first)

edit : This winter idle cpu was 16/18°C and load was 27/30°C
70°C is the temperature at the inlet of the radiator. Output it drops to 30/32°C.

 

[Johan45]

70°C is the temperature at the inlet of the radiator. Output it drops to 30/32°C.

That's what I was picking up on yesterday, if the water is entering the rad at 70c then it's leaving the CPU at 70c. This tells me that the CPU is hot. Either that or there's some miscommunication going on here. If the water leaving the rad is 30c and the CPU is 30c where does the heat come from to get the water to 70c. ??

@YautjaLord Good luck with the new toy!!

 

[URBAN303]

That's what I was picking up on yesterday, if the water is entering the rad at 70c then it's leaving the CPU at 70c. This tells me that the CPU is hot. Either that or there's some miscommunication going on here. If the water leaving the rad is 30c and the CPU is 30c where does the heat come from to get the water to 70c. ??

@YautjaLord Good luck with the new toy!!

True! I think it's my English that fact that it was misunderstood

 

[URBAN303]

So! When my ^^ CPU heated to 36°C -> my radiator = 49/50 ° C.
But when my CPU is at 100% utilization on 8 cores, radiator ranges from 67/70°C to keep the CPU 35°C/37°C ...
Is it better? ^^

notes:If it was the CPU at 70 ° C. I will inevitably BSoD. But this is not the case ^^ pump is not hot

 

[d1nky]

I'm confused, I thought the conductivity of water wasn't efficient like that.

70c water is quite damn hot. Wouldn't there be heat transfer back into the CPU at those temps?!


Whenever I've seen water temps vs block/CPU temps the water is always slightly less, which gives the cooling effect!

Edit: what happens if you have a chip that has around 200 watt and a few GPUs the same, would the water be boiling then?!

 

[URBAN303]

okay it's verified The problematic = it's my english ^^ sorry ^^

 

[d1nky]

okay it's verified The problematic = it's my english ^^ sorry ^^

Dont apologise unless you live under a bridge..

Damn some of us use <0c water and still get 50c on these chips. When on my PC I'll find a chart and formula that shows the conductivity of water and heat source.

 

[URBAN303]

In France the buildings are not wood nor plywood lol I do not see the connection with the bridge but my building is stone effect (no brick construction) ^^ There'm relatively fresh even in summer.

 

[Johan45]

@URBAN303 Something just doesn't add up, like D1nky says it just doesn't work that way.
Could you do us all a favour and download HWMonitor free version. Then take a pic of it open while the PC is loaded with say P95 blend?

 

[AphexDreamer]

Finally got my loop in. Had a small leak at first but now after 4 hours of leak free pump operation I've decided to install everything and get my rig up and running.

I'll be running OC tests with it soon.

Simple OCCT Test to see how effective the cooler is and I went from 62C core to 46C. 16C Difference! Pretty sweet. And that is with the AC off, its like 80F in my room.

 

[d1nky]

here youll see that water has a thermal conductivity of 0.58, which is better than air but pretty crap compared to metals. This means that water could never be hotter than the cpu because of its inefficiency of conductivity, and if it was then heat would be transferred back to the metal of the cpu.

someone clever could calculate the heat output and show roughly water temperature, but i cant.

also martinsliquidlab does some really thorough testing, which shows this.

and i meant trolls live under bridges.....

 

[Johan45]

Finally got my loop in. Had a small leak at first but now after 4 hours of leak free pump operation I've decided to install everything and get my rig up and running.

I'll be running OC tests with it soon.

Simple OCCT Test to see how effective the cooler is and I went from 62C core to 46C. 16C Difference! Pretty sweet. And that is with the AC off, its like 80F in my room.

That's some great results.

 

[AphexDreamer]

So it seems like I'm stable at 4.5Ghz with 1.4375 volts in bios jumping to 1.45 max on load. With temps between 44-47C. I tried to push 4.6Ghz but it seems like I need another .3 volts to make it stable and I'm not sure that is a fair trade. Going to enjoy 4.5 Ghz for a bit and the shoot for higher later on.

 

[TheoneandonlyMrK]

okay it's verified The problematic = it's my english ^^ sorry ^^

No its not your English and people on here have had this cpu at 5ghz with much better cooling and it doesn't work the way you are saying, it seems like your temp should be way way higher than the input at rad water temp.
Like KILL cpu higher.

 

[YautjaLord]

Same stuff as AphexDreamer, except at 1.4v CPU voltage, 1.2v CPU/NB voltage. Here's the CPU-Z validation pic:

CPU-Z definitely messing with stuff/misbehaves/etc..., cause each time i get into BIOS to check CPU's temps they in the 35 degrees C & that's idle, last time i checked them after some quick C:R session they ranged in 52-53 degrees C. lol I'll probably play with HAF 932's fans, guess i placed them all wrong after installing this H110; my ambient room temp is above 25 degrees C i bet as well, probably 30 & up even though it's ventilated. Will go for 4.6/4.7GHz, after i'll take care of all these issues.

 

[AphexDreamer]

So, as long as my core temp is < 62C and my Socket temp < 72C does it matter how much voltage I pump to the chip? I read somewhere that the volt limit is 1.55, is that for safety reasons, hardware limitation, or what?

Also does that mean that anything less than 1.55 is safe for 24/7 usage as long as my temps are good? I've never had cooling good enough where I had to worry about being able to reach the CPU's voltage limit.

 

[d1nky]

So, as long as my core temp is < 62C and my Socket temp < 72C does it matter how much voltage I pump to the chip? I read somewhere that the volt limit is 1.55, is that for safety reasons, hardware limitation, or what?

Also does that mean that anything less than 1.55 is safe for 24/7 usage as long as my temps are good? I've never had cooling good enough where I had to worry about being able to reach the CPU's voltage limit.

ive had three 8350s and kept them all below 60*c and been up to around 1.8v benching on water. for 24/7 usage i stayed around or below 1.55v.

didnt see any signs of degrading or anything. just keep it cool and it will do anything you want!

 

[tuunade98]

Does anyone here have a FX 8350 with a corsair H75? how much did you overclock the 8350 to, while keeping the cpu temperature under 60 degrees Celsius?

 

[YautjaLord]

Just did it, 4.6GHz, 1.4v CPU voltage, 23.0x multi, CPU-Z validated:

Gonna need better 140mm fans, 2000RPM each: only than will raise the clock to 4.8/4.9GHz, will live with this 4.6GHz OC for now. Let's see how C:R will benefit from this OC, plus will probably run Prime95 with this clock this week.

2tuunade:

FX-8350 with H110, you can see the OC in the pic above - hits 50+ degrees C under load, but it's due to H110's default fans speed.

 

[Johan45]

Just did it, 4.6GHz, 1.4v CPU voltage, 23.0x multi, CPU-Z validated:

Gonna need better 140mm fans, 2000RPM each: only than will raise the clock to 4.8/4.9GHz, will live with this 4.6GHz OC for now. Let's see how C:R will benefit from this OC, plus will probably run Prime95 with this clock this week.

2tuunade:

FX-8350 with H110, you can see the OC in the pic above - hits 50+ degrees C under load, but it's due to H110's default fans speed.

Looks good Yautja, I had to replace the fans on my TT EX 2.0 to get a bit more out of it as well.

 

[Pehla]

i am realy geting tired of trying to oc this platform!!i had no problems push cpu4.4ghz with memory runing at 1333mhz without touching voltage!
since i put this two sticks of corsair 1866mhz i realy have hard time making it stable!
im wondering if my psu is insuficient or not quality enough(xilence 550w) curently i have v.core at 1.45v and b.clock at 220 and multi at x19,5 making my chip run at 4289 mhz
i just made first stability test i ever made..,and on 50c temp pc shut down!! after only 20sec of testingi have termalright axp-200 muscle cooler with is nice and quiet,but is it enough??!?! i dont need crazy oc for testing ..,i want stable 24/7 oc around 4.2-4.4 ghz

edit:
http://valid.x86.fr/vkt6eg

 

[d1nky]

i am realy geting tired of trying to oc this platform!!i had no problems push cpu4.4ghz with memory runing at 1333mhz without touching voltage!
since i put this two sticks of corsair 1866mhz i realy have hard time making it stable!
im wondering if my psu is insuficient or not quality enough(xilence 550w) curently i have v.core at 1.45v and b.clock at 220 and multi at x19,5 making my chip run at 4289 mhz
i just made first stability test i ever made..,and on 50c temp pc shut down!! after only 20sec of testingi have termalright axp-200 muscle cooler with is nice and quiet,but is it enough??!?! i dont need crazy oc for testing ..,i want stable 24/7 oc around 4.2-4.4 ghz

edit:
http://valid.x86.fr/vkt6eg

it may be a bit short on amperage or power delivery, youd have to test another psu. also overclocking with temps in the upper limits causes problems. And maybe try loosen cas to ras delays on the ram! Or add a touch more cpunb volts.

 

[Durvelle27]

Has anybody ever used the

ASRock Fatal1ty 990FX Killer

Before