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AMD Athlon x2 340/370 and Athlon x4 740/750K/760K/BE Owners Club

post #1 of 1850
Thread Starter 


Hello eveyone! I am starting a small, but all inclusive owners club for the gimped out A10 and A4 APU, otherwise known as the Athlon x2 340/370 and the Athlon x4 740/50k, and the new 760k/BE. Please know that as these are gimped APU's, they may have a good variance between overclocking chip to chip, as there are some reviewers running the same basic setups, and achieving much higher clocks. I was able to boot to 4.8Ghz, but it was not stable for very long.

==============================================================

Please include a link to your CPU Z Validation for admission! Also, please PM me with the same link, and I will post up an owners list once I receive them.

==============================================================

Most APU OC guides will help you achieve a good clock of up to 4.4Ghz fairly easily, and with the 760k, one should reach the 5+Ghz zone, as the comparable Richland A10 has breached the 5+ Ghz club.

==============================================================

Basic system information:

74c is the absolute maximum recommended temperature for the 740/750k. Expect the same for the 760k.

1.55v is the maximum recommended voltage for the CPU on 740/50k. Expect the same to be true for the 760k.

Stock CPU/NB speed is 1600Mhz. ***Must be raised to a minimum of 2200Mhz for ram over 1866Mhz!!*** Will update once more information is released for the 760k.

1.325v is the maximum recommended voltage for the CPU/NB on the 740/750k. Expect the same for the 760k.

Optimum stable OC for CPU/NB is 2200Mhz. It has been reported to be stable at 2500Mhz, but this will affect overall system clocks/stability.

==============================================================

When you're ready to post information on your CPU, please include the following to help others with settings:

- Motherboard brand, model, BIOS Version and Revision #.

- Multiplier, Bus Speed, Northbridge Clock.

- CPU VCore, CPU/NB Vcore, Vdroop settings, power saving features, and any other applicable settings you used to obtain max stable OC.

- Memory brand, model, OC speed, timings, and voltage.

- Cooling Solution.

- Power Solution.

==============================================================

For optimal Overclocking, it is recommended that you purchase an A85X series motherboard, with good VRM cooling options, as these chips can be punishing on the motherboard!

==============================================================

Please remember to update you're Bios with the most current revision for optimal support.

Time to get the word out and show this sub $90.00 CPU some love!

==============================================================

Wanna show you're love for this CPU? Post this handy dandy code in you're sig!!! thumb.gif
Code:
:devil-smi [B] [URL=http://www.overclock.net/t/1404334/amd-athlon-x2-340-370-and-athlon-x4-740-750k-760k-be-owners-club]| AMD Athlon x2 3XX and Athlon x4 7XX/K Trinity Owners Club |[/URL] [/B] :devil-smi

Edited by agrims - 6/30/13 at 11:00pm
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post #2 of 1850
Thread Starter 
So here are my Specs:

Athlon x4 750K

MSI FM2-A85XA-G65 motherboard, Rev. 1.1, Bios version 7793v23

Cooler Master Hyper 212 Evo

Silverstone Strider 500w PSU

Corsair Vengeance 8GB 4*2 kit; 1600Mhz CL9.


Full system specs:

Bclk - 105

Multi - 42

CPU Freq - 4410.08 MHz

CPUv - 1.500v

CPU/NB - 21

CPU/NB Freq - 2210 MHz

CPU/NB v - 1.275v

CPU Vdroop Offset - 100%

CPU NB Vdroop Offset - 100%

C6 State - Disabled

SVM - Disabled

Cool n Quiet - Disabled

Spread Spectrum - Disabled

Turbo Core - Disabled

Bios CPU temp - 35c Idle / 52c IBT loading

DRAM OC'd to - 980 Mhz *2 (1960Mhz) @ 9-10-9-27-2T

Ram v - 1.65v


Current CPU Z validation:

http://valid.canardpc.com/2841097


System running stable with IBT, extreme test, 20 passes.
Edited by agrims - 6/29/13 at 11:13pm
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post #3 of 1850
Reserved For Me!!

Parts Will Be Here Wed..

Specs

CPU - AMD FM2 750K

Mobo - Gigabyte GA-F2A85X-UP4

Memory - Crucial 16gb DDR3 1600 CAS-8 1.35v

HeatSink - Cooler Master Hyper 212 EVO

PSU - Rosewill 650w


Cpuz Validation

http://valid.canardpc.com/2884674
Edited by Justinbaileyman - 8/8/13 at 7:00pm
post #4 of 1850
Thread Starter 
Welcome to the family! And the wolfpack groweth! I will start making an owners list today, and I am pumped to see what you're setup will net you for overall OC-ability.

My new optimum setup, a bit faster all around, save the ram, but the funny thing is, is that it runs faster at it's rated specs, so I am going to try and tighten it up a bit, as running all stock speeds, and with ram set to 1600 but at 7-7-7-23, it screams, it is actually faster than 1866, and is closer to 2133 than running it at 1960 that it was!

http://valid.canardpc.com/show_oc.php?id=2848297

Enjoy the deliciousness! My overall goal is to see how stable I can get it, but with the MSI board, although ranks #3 on the ATX A85 offerings currently, and has the coolest VRM's due to the oversized heatsinks and heat pipe, the damned overvolt protection that they added is killing me! OC'ing on this board is taking a painful amount of time, as it fights you after 4.4Ghz. I am working around it and learning as I go, and I do highly recommend the board as it is high on the features, it just sucks being the first one to punish it, and sucks more that MSI decided that AMD couldn't provide the appropriate OV protection on the chips..

BTW, with the Vcore offset to 100%, the board reads 1.568, as this was taken with the CPU at 100% IBT extreme loading, and Bios Vcore was set to 1.500v. The Bios reads the voltage a bit higher than it actually is pulling, as with my multimeter hooked up, I am pulling 1.501v at that loading..
Edited by agrims - 6/29/13 at 11:28pm
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post #5 of 1850
Thread Starter 
http://valid.canardpc.com/2848872

4.5v 12hr stable Prime 95, Small FFT's... I has to go down to stock ram right now, but it is a work in progress! Happier by the minute. The CPUv is 1.55 set in Bios, and it has been checked with the multi at the rail, only 1/100th of a volt off! The trick I found out on this board, is to ENABLE CPU OCP, and CPU/NB OCP. Once the board reads 1.55, it throttles, but if you split hairs with the voltage, it throttles!

biggrin.gif
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post #6 of 1850
Thanks for making this thread thumb.gif

Anything above 4.2 on my 750k seems to require lots of voltage or maybe I'm doing something wrong? My temps are fine, never go above 50c.

http://valid.canardpc.com/2849115 Asrock Extreme4 A85X

And isn't 1.55 a bit much? redface.gif
post #7 of 1850
You should set your voltage to 1.5v and see if you cant squeeze out a few more Mhz I am sure you could get 4.4-4.5 with out any problems.
These are only 65w cpus so you should be good in volts all the way up to 1.65v.
Just make sure you have proper cooling...
Also you may want to bump up your NB +25 and set it to 2400Mhz that should help a bit.
Edited by Justinbaileyman - 6/30/13 at 11:27am
post #8 of 1850
Thanks for the response, will my board be able to handle it? I have a noctua nh c14 blowing on top of the vrm heatsink
post #9 of 1850
Thread Starter 
They claim it has a max safe voltage of 1.55v, but running what I'm running, it is at a temp of 59-61c with p-95 small FFTs. I am sure with solid air cooling, you could push up to 1.7v and be within thermals honestly! Post up all you're system specs and I can give you better help!
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post #10 of 1850
Thread Starter 
How hot does HWmonitor say the VRMs are getting? It'll be the second temp in the system temp section. At 1.55v CPU core, mine runs 63c under load.
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