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AMD Kaveri A10-7850K Overclock Guide - Page 128

post #1271 of 1334
I can hit over 2600 but only with 1 stick at a time on my 5800k, 2 just takes the CPU to higher power levels it can't handle if you underclock the CPU and over clock the RAM and gfx u can go higher but you can't have all 3
post #1272 of 1334
A few people on here have been saying that they can`t get their A10 7850k to clock past 1.7Ghz. If you are using the msi A88XM gaming motherboard I have a possible solution for you. this motherboard has a slowmode switch just under the reset button, with it enabled it will keep your cpu at 1.7, but it will let you overclock your ram and graphics higher than without it. turn it off and it will return your clock speed to normal. check the motherboard manual on page en-26. Hope this helps smile.gif
post #1273 of 1334
Hey everyone, I was building a mini itx system based around a x760k, gigabyte a88x motherboard and a 120mm Aio cooler, unfortunately I damaged the Aio installing it in the case and it has leaked and bricked at least the cpu. The system still powers on but I get nothing from it. Do you think it would be worth trying to replace the cpu and cooler?
post #1274 of 1334
Guys, i managed to stabilize 2400Mhz RAM on F2A88XM-D3H.
I bought some materials and cutted a heatsink and adapted on VRM. Now the 2400Mhz RAM works like a charm.

But now i have a problem. Since my last post i reinstalled my S.O and now if i overclock my IGP, the clock seems stuck in 720Mhz (default clock for my IGP) and the softwares seems to recognize the clock i set on the BIOS.



I wish i don't need to reinstall my S.O to resolve this problem ...

EDIT:
Seems this is a limitation from the BIOS. The F8 BIOS limits the GPU overclock at 960 Mhz... and the F9 limits at 720Mhz.
Edited by Katsutoshi - 4/27/16 at 4:35pm
post #1275 of 1334
Yeah some boards have GPU clockspeed limitations, though I have never heard of any of them walking back the max GPU OC with a newer UEFI revision.
post #1276 of 1334
Well, i thought to bring some results for who have the same motherboard (F2A88XM-D3H).

After some days testing i have some experience to share.

1 - Installing a heatsink solves the problem of the unstable of Kingston HyperX Savage running at 2400Mhz.
2 - GPU Overclock became stable, in my case, F8 BIOS, i only be able to overclock up to 960Mhz.
3 - NB overclock don't bring good results. Just overclock to 1900Mhz, and you don't see anything when the SO starts. Maybe too much heat?
4 - Installing a FAN helps a lot too. The VRM of this board runs hot as the hell.
5 - Overclocking the CPU to 4.3Ghz with the memory and igp OC don't work well. All you can see is some screen corruption when the VRM starts to "burn".

So in the end: In hot days, i put the CPU to run 4.0@1.250v, IGP 960 and RAM 2400Mhz. Until i swap the heatsink (very improbably i will do this) or put a better fan to bring some ventilation.
post #1277 of 1334
Sounds a lot like what people run into with 4+2 boards that have poor VRM cooling on FM2+. You will run into board restrictions before anything else. It's quite common, and your results are pretty normal. Plus the 960 mhz iGPU restriction is/was fairly common on Gigabyte FM2+ boards.
post #1278 of 1334
I think I've been overclocking these all wrong.

In HWmonitor I only had 2 cores at 4.5. The other 2 were like 1.7. I turned AMD COOL AND QUIET on and now all 4 are at 4.5Ghz.

I've built 2 personal APU machines and overclocked them all. I've built 20 APU office machines but never overclocked them so they should all be good.

What is going on here with that COOL AND QUIET? I thought it was supposed to be disabled.

I have confirmed in AIDA in some quick benches that with the option enable and disabled it really is making a difference.
Edited by THUMPer1 - 5/23/16 at 8:55am
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post #1279 of 1334
Quote:
Originally Posted by THUMPer1 View Post

I think I've been overclocking these all wrong.

In HWmonitor I only had 2 cores at 4.5. The other 2 were like 1.7. I turned AMD COOL AND QUIET on and now all 4 are at 4.5Ghz.

I've built 2 personal APU machines and overclocked them all. I've built 20 APU office machines but never overclocked them so they should all be good.

What is going on here with that COOL AND QUIET? I thought it was supposed to be disabled.

I have confirmed in AIDA in some quick benches that with the option enable and disabled it really is making a difference.

Here, when this happened was because of something about the voltages... Then i did a reboot and the CPU turned normal.

About CnQ, i use it even overclocking the CPU, because it keeps my CPU with low temps. If i put 4.5 Ghz (here this freq, only runs with 1.45v) all the time, the temps skyrocket in hot days.
Edited by Katsutoshi - 5/24/16 at 8:05pm
post #1280 of 1334
hey did you ever figure out what caused this im on the same boat
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