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AMD FX Overclocking

pandem0nium said:
I've rebuilt my water loop and I'm giving the 8350 a good thrashing to see what it can do :)

So far, I've got 5.2 ghz @ 1.644v.

10 mins prime stable, max core temp of 55*C
Click to expand...

Impressive, What's your loop consist of?

I find once the voltage gets much past 1.45 that the VRM temps go through the roof - 100 degrees + on that board.

Rich
 
Dog said:
Impressive, What's your loop consist of?

I find once the voltage gets much past 1.45 that the VRM temps go through the roof - 100 degrees + on that board.

Rich
Click to expand...

Thanks :)

YOUR BASKET
1 x XSPC X2O 420 Single Bayres/Pump £49.99
2 x Hardware Labs Black Ice Nemesis Radiator GTX 240 - Black £41.99 (£83.98)
Total : £143.57 (includes shipping : £8.00).



Pump/res => rad with two fans in pull => cpu block => 7990 with full cover block => rad with 4 fans in push/pull => back to the res.

I've got one 120 mm spectre pro aimed at the vrm. Yeah, it's a limiting factor and sends the cpu temp way up. A crosshair formula / Z with the vrm block would be much better.
 
pandem0nium said:
Thanks :)

YOUR BASKET
1 x XSPC X2O 420 Single Bayres/Pump £49.99
2 x Hardware Labs Black Ice Nemesis Radiator GTX 240 - Black £41.99 (£83.98)
Total : £143.57 (includes shipping : £8.00).



Pump/res => rad with two fans in pull => cpu block => 7990 with full cover block => rad with 4 fans in push/pull => back to the res.

I've got one 120 mm spectre pro aimed at the vrm. Yeah, it's a limiting factor and sends the cpu temp way up. A crosshair formula / Z with the vrm block would be much better.
Click to expand...

I'm thinking I may need to reseat my CPU block, I have same pump res to triple rad with 3 fans in pull to cpu block and back to pump res.

Thats in a 750D with 3 x 140 mm intakes in front / bottom and one 140mm exhaust top rear.

Half an hour of prime (blend) I'm up to 65 degrees core temp. That's on an 8350 @4.7 on offset volts that reach 1.44.

I've considered a small floating fan above the VRM's blowing onto them.

Rich
 
Dog said:
I'm thinking I may need to reseat my CPU block, I have same pump res to triple rad with 3 fans in pull to cpu block and back to pump res.

Thats in a 750D with 3 x 140 mm intakes in front / bottom and one 140mm exhaust top rear.

Half an hour of prime (blend) I'm up to 65 degrees core temp. That's on an 8350 @4.7 on offset volts that reach 1.44.

I've considered a small floating fan above the VRM's blowing onto them.

Rich
Click to expand...

Great stuff. I think you'll struggle to get any higher without active cooling on the vrm.

It won't go above 5.2 for all the volts in the world, so I've settled on that for a benching clock.

Just got to tweak the ram now.

a817 points on cinebench R15 so far. 5 points away from that 4770k @ 4.4.
 
Apem said:
Ok thanks dog for the help
Click to expand...

I've just had a closer look / listen and the noise appears to be vibration from the case (plastic surround for the 5.25" bays), pump is much quieter when unfastened.

I'll have to work out some way of dampening it when I have a bit of spare time.

Rich
 
I need some help from you marvelous overclockers!

I would like to overclock a fx4130 i have got to give it the best possible chance!

I believe it currently sits at 3.5ghz. What are the safe voltages, temps and that kind of stuff? It will have a Fenrir Titan cooler so i don't know how good they are? I've never used one. But it seems like quite a beast!

Any help would be much appreciated :)
 
I've read through this thread and getting a little confused as there are so many debates, answers and views... I have some questions and hope that I can get them all cleared in one as there was a lot of reading through 12 pages and now I am baffled...

If I can get my 8370e to a stable overclock by just multiplier and voltage, what benefit will I see from using a higher bus and lower multiplier?
At what point do I enable LCC and to what level?
If my computer just shuts off as I try to stress test, does that mean I don't have enough voltage configured?
 
LLC is designed to compensate for vdroop. To get the correct/best setting, first set your vcore to your chosen level, set llc to very high, load cpuz, run prime95 (you dont need to run it for long, like less than a min to get the reading) and look at the vcore reading in cpuz, if it drops below the vcore you set, change llc to extreme and try again. Ideally you want the vcore to remain as close to the level you set even under load.

Setting llc too high will result in the vcore raising above the level you set underload, which is probably not desirable. Drop llc a level in this case.

Highest recommended vcore on good air cooling is 1.5v. HWmonitor is good for temp readings. The temps you need to keep an eye on are package temps and socket temps, I cant remember what they are called in hwmonitor though but if you post a screenshot I'm sure someone will be willing to help.
Max package temp - 62
Max socket - 72
I could be wrong about those though or wrong way round as I cant check atm.
Also get some small fans over the vrms to help keep things in check.
Try and stick with multi OCing until you have found a stablish setting and then you can experiment with fsb OCing to see if there is any improvement.

For stability testing its recommended to use realbench and not things like prime95 as they are unrealistic loads. If you machine reboots or locks up during stress tests, it could be that it needs more vcore, but it could be getting too hot. Thats where hwmonitor or equiv comes in.

Since my AMD system is in bits, its hard for me to help further.
 
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That reply is great and a massive help. Thanks for taking the time to write it too. I have a watercooled rig but my graphics card is in the same loop and I only have a dual rad so I think I can't go as high as I would like as it won't cool the best.

I will have a play around and come back with my results or possibly questions. Thanks again :)

I have hw monitor and asus ai suite running. I have a friend who is bringing me some fans into work tomorrow for vrms
 
Just my opinion but I found asus AI suite a pain in the ass and had a slight negative performance hit too. My advice would be to ditch it as it really doesnt offer that much usefulness for a program that has to be running all the time.
 
I found the built in-house software for motherboards to be flaky too although I have not given the last few years a chance. Your BIOS will give you accurate readings so note down what they are reporting there, then when your in Windows see what the software reports it as.

As Scurburg said - then set your offsets and start testing for stability.
 
My package temp rises close to 60 and CPU is going to 70+. I only have a dual rad but my GPU is also cooled in this loop. CPU is before GPU in the flow sequence and directly after the RAD. I am upgrading to a tripple rad but, I would have expected to get better temps. Currently I am running:
240 FSB, 2648HT Link, 1.32V, and 19 multiplier, why are my temps so high? This is just doing a prime 95 test no graphics etc are working.
 
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