Using 4 pin EATX Power connector MB to overclock?

dwykes23

dwykes23

dwykes23

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Hi All,

Looking to overclock my CPU but have had troubles with CPU Socket reaching temps of 70c within a minute of Prime95.

I am novice at overclocking but decided to follow someones beginners tutorial and try to understand it / threads.

My specs:

MB: M5A99X Evo R1 (4 pin EATX Power Connector)
CPU: AMD FX 8350 4 GHz
After Market Cooler: Noctua HN-14D (Dual Fan Cooler)
Corsair 600w Power Supply (CAIR 600W CMPSU-600CXV2 PSU)

The MB has it's own TPU / Auto Overclock feature as I had problems with the above I decided to Prime95 to this setting and test it on Prime95; to my surprise 2 cores failed within 30 seconds! - this led me believe it was either an error with my fans/air flow or it was a problem with the MB/Power Supply.

Could using a 4 pin EATX to overclock on this CPU cause problems :confused:

Please could someone shed some light on this for me? I may need to purchase a new Motherboard but as I'm in the market for a new GPU/RAM I'll probably purchase all three today (hopefully).

Thanks for any help given! ;)
 
Whats the rest of the cooling in your case like?

I wouldn't worry too much about what prime has to say, it'll push your system far beyond what any game / real world application will do. Although were you running stock settings when you primed?
 
Hi James,

I have one 120mm fan at the front blowing air into the Computer (in front of the Hardrives to keep them cool), another 120mm fan blowing air into the Computer from the back, a 140mm fan blowing air out of the back of the Computer located at the top of the case and also the PSU which exhausts air from the bottom of the case.

I'm not 100% sure if the cooling in my PC is adequate? Here's a shot of my Temps etc.

b5nsi0.jpg

(the Tmping2 reading relates to my SSD I believe)

I believe I also ran Prime95 on the Small FFTs to check the cores/temps etc. I was a bit worried because the PC actual heats up to 51c on the CPU's most basic / stock setting of 4000Mhz
 
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You might want to do a BIOS update, the R1 version of your board does not support Piledriver properly out of the box and may be causing issues.

Also if you're using the stock heat sink, it really isn't sufficient to overclock an 8350.
 
Hi Jon,

I'm using an after market cooler (Noctua) to cool the CPU, and my MB has the most recent bios update, I had to update the bios as the board did not recognize the CPU without it unfortunately.
 
Hi James,

Thank you! I will give this a try! I may even look up on google to see if anyone has this case and see how they configured the fans etc.
 
Try having top/back fans always blowing out, front/floor in. If you can only mount you PSU one way (Fan up), just leave it like that. That will make your case a "Negative pressure" case, but that's alright. You just need to clean it regularly out of dust.

If that does not fix your temps, your CPU cooler might not be seated properly, or you have too much thermal paste. That chip does run relatively hot, by the way.
 
I successfully reached 5GHz on your board for cinebench etc. and 4.6GHz prime stable. I use a Phanteks 140 cooler.

Typical vcore (CPU) voltages would be 1.45V for 4.6Ghz and 1.51V for 5Ghz, there is a lot on info in the CPU section on 8350 overclocking.
 
archerz, the case is a define xl first edition I believe..

Make, I'll try altering the fans tomorrow and see if it improves the airflow inside the case.

Thanks for the information nkata :)
 
Make said:
Try having top/back fans always blowing out, front/floor in. If you can only mount you PSU one way (Fan up), just leave it like that. That will make your case a "Negative pressure" case, but that's alright. You just need to clean it regularly out of dust.

If that does not fix your temps, your CPU cooler might not be seated properly, or you have too much thermal paste. That chip does run relatively hot, by the way.
Click to expand...
Should I buy a few more fans for the front of the PC to blow more cold air into the PC? I'm looking to purchase a new Sapphire 290 pro today, newer ram and a better PSU.. just wondered about getting additional fans why I have the chance :)

Also, nkata, please could you reference me a guide to follow, I am happy to check the threads for advice (I've looked a little) I believe I used the multiplier setting of 20 and a default NB of 2200Mhz, HT was 2400Mzh I believe.. I disabled most of the power saving features.. I did not unclock the core using the motherboard though? Sorry for the novice questions, I'm new to overclocking I dont quite understand the basics just yet.
 
You don't need any more fans. If the CPU is still overheating after all this you really want to check how your cooler is seated. It is possible to put them on backwards and it won't fit so well.
 
dwykes23 said:
Also, nkata, please could you reference me a guide to follow, I am happy to check the threads for advice (I've looked a little) I believe I used the multiplier setting of 20 and a default NB of 2200Mhz, HT was 2400Mzh I believe.. I disabled most of the power saving features.. I did not unclock the core using the motherboard though? Sorry for the novice questions, I'm new to overclocking I dont quite understand the basics just yet.
Click to expand...

I would start off just by setting the AI overclock tuner to manual. Set the CPU ratio to 22x. Set HT link and NB frequency to 2400MHz.

Click on DIGI + VRM, set the CPU load line calibration (LLC) to ultra high set NB LLC to high, set CPU and CPU/NB current capability to 120%.

Leave ram settings alone for the moment. We will not change the base frequency so the ram frequency will not be changed.

Set CPU and NB voltage to offset mode, offset mode sign +, CPU offset voltage try 0.7V, CPU/NB offset leave at auto.

That is all, leave all other settings as auto or default.

You should have a stable 4.4GHz. altering the CPU ratio up or down will step in 0.5x 200MHz or 100Mhz steps.

Changing the CPU frequency will alter the overclock also, ie 210Mhz will change the 4400MHz above to 4620MHz. It will also change the memory, HT link and CPU/NB frequency, so needs a bit more thought.

Hope this helps, andy.
 
Thank you again guys.

I've corrected the fans inside the system now and it does seem a lot cooler!

I followed Make and James' advice and now have the fan at the back blowing air out of the case instead of into.. this has helped, I've also taken off the side window that is screwed onto the define XL case by default allowing more air out of the case? Feels like the Antartic sitting next to my PC now! :p

Following advice, I bought a new PSU today too! I needed at least 750w for the new GPU and I believe this will help with Overclocking as my current PSU tends to blow out a lot of warm air and as stated above gives negative pressure in the case.

Andy - thank you immensely for your help! I will give this a try today! If any cores fail on Prime95 (first FFTs test 10 mins) could you give advice? or should I use a different bench-marking application such as the one you use? Also by default should the power saving features also be disabled using your settings?

Thanks again!
 
Personally I use the power saving settings. It should run OK with Prime at 4.4GHz, I managed one hour at 4.6GHz, though you may need to tweak the offset volts a touch. Disable the spread spectrum if it is enabled.
 
nkata said:
I would start off just by setting the AI overclock tuner to manual. Set the CPU ratio to 22x. Set HT link and NB frequency to 2400MHz.

Click on DIGI + VRM, set the CPU load line calibration (LLC) to ultra high set NB LLC to high, set CPU and CPU/NB current capability to 120%.

Leave ram settings alone for the moment. We will not change the base frequency so the ram frequency will not be changed.

Set CPU and NB voltage to offset mode, offset mode sign +, CPU offset voltage try 0.7V, CPU/NB offset leave at auto.

That is all, leave all other settings as auto or default.

You should have a stable 4.4GHz. altering the CPU ratio up or down will step in 0.5x 200MHz or 100Mhz steps.

Changing the CPU frequency will alter the overclock also, ie 210Mhz will change the 4400MHz above to 4620MHz. It will also change the memory, HT link and CPU/NB frequency, so needs a bit more thought.

Hope this helps, andy.
Click to expand...

Hi again Andy, I used the above settings and also turned off the turbo core, the setting for the offset 0.7v isn't allowing the system to boot / overclock :confused: I'm unsure what this feature does something to do with the amount of voltage the cpu uses when idle/full load? :p
 
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