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Athlon 860K, any one picking it up? - Page 311

post #3101 of 3195

Have you tried using AmdMsrTweaker to spot the default voltage in the PStates? It should be the next State after the last Turbo PState. In Godavari the 7870K defaults to 1.4875V and the 7890K defaults to 1.5V, which are the P1 States when only P0 is a Turbo State. In Kaveri the A10-7850K has 3 Turbo States, P0..2, and defaults to 1.3375V which is P3 State.

 

post #3102 of 3195
Here is my 860K :

Athlon 860K PStates
post #3103 of 3195
Wow, that's a high default vcore for an 860k. My 7700k defaults to like 1.3125v, and that's a jump from the 1.2125v that detected with the shipping BIOS on my a88x-pro. Your high default vcore may be affected by running a newer BIOS aimed at GV-A1 chips . . .
post #3104 of 3195
Well, I do think all 860K have different ref. Voltage. AMD only guaranties it can keep the 4ghz.
post #3105 of 3195
Is there anything I can do to fix my throttling issue on my motherboard? My motherboard is Gigabyte F2A68HM-HD2. I find I'm unable to go over 4GHz (even this clock speed is stretching it) without throttling issues occurring (cores occasionally drop down to 1.7GHz). Throttling usually occurs when thermal margins hit around 15-20c. This leads me to believe it's the VRMs on my board that are causing issues for my CPU. I'm not expecting crazy OC results, but getting over 4ghz would be nice.

I currently use AMD Overdrive to undervolt as the default values set (1.368v is default according to CPUID HWMonitor) increase the chance of getting throttling issues even doing light gaming @ 4Ghz, so I have to undervolt to prevent that. My BIOs does not allow for undervolting, so I'm forced to use this software. I've currently had to lower my clock speed to 3.9 because since it's summer, my room is much hotter than normal, and this appears to be making my PC hot as a result. Unfortunately, I can't seem to get higher clock speeds (higher than 4) at lower voltages - stress testing freezes the entire PC at higher clock speeds and lower volts, so that method is out of the question.

My Case is CiT1017 if that helps.
post #3106 of 3195
Hello,

IF throttling is due to VRMs getting too hot ; you may try to add small heatsinks on the VRMs.
It is also generally recommended to use top flow CPU cooler (maybe a scythe shuriken ?) instead of tower cpu cooler.
post #3107 of 3195
How do I know what type of heatsink to buy? Don't want to just buy any only to have them not fit or something.

And I'm not 100% sure it's the VRM's overheating. I'm only assuming since the throttling occurs even if thermal margins are still in double-digits (15-20c when stress testing with OCCT). It takes about 3mins for the throttling to begin after OCCT stress test. Margins are around 15-20c during this.

It has to be VRMs causing it if not the CPU itself I think.
post #3108 of 3195
Does the throttling happen during gaming, or only while stressing with OCCT ?

You can see what kind of socket support a CPU cooler has in specifications and on manufacturer website. I would also recommend small heatsinks for VRMs. If you are lucky you can find those in your local PC hardware store. If not, check Amazon or equivalent site. They can't "not fit". They are square shaped little pieces you just tape on your VRMs.
post #3109 of 3195
Throttling only occurs in a stress test after around 3mins if I undervolt

It did, however, start throttling while playing a game (the game isn't heavily taxing either - it only consumes around 25-35% CPU) and watching Twitch (but this on source quality was making chrome use up to 25-40% CPU) when clocked at 4GHz with 1.308V

I've had to downclock my CPU to 3.9GHz and lower voltages to 1.26V in order to lessen the heat because of summer times (my room tends to get very hot). But yeah, the VRMs appear to be limiting my OC potential since they get so hot they decide to throttle down the CPU, so I can't really go over 4GHz comfortably.

I have to use AOD as it is to keep my voltages low because the one assigned by the bios only increases the chances of throttling. At default voltages, it will start throttling at 4Ghz when even doing lighter gaming. 1.368V is the voltage it sets and something my motherboard cannot handle. Thank god for AOD or idk what I'd use to undervolt.
post #3110 of 3195
Get some airflow going over the VRMs, and if you can, get a cheap pack of RAM heatsinks to stink on the VRMs (copper or alluminum will do, make sure they come with thermal tape, most do). That is some very premature throttling, probably from the economy of the board. The less costlier boards seem to really skimp on the VRMs, so much so that not much more than basic surfing/media duties are possible without throttling. Though this one at 4+1 is generally considering beefier than a lot of the lower end boards, so it might just be heat. Make sure your case interior temp is under control, or else that extra air and heatsinks wont do that much.

My first FM2 board throttled pretty bad until i did that (i posted pictures from quite some time ago far earlier in the thread) and still performs very well overclocked in my friends hands. I obv dont have the same issue with my XBR.
Edited by HeadGear - 6/9/16 at 8:40pm
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Athlon x4 860k Crossblade Ranger Club3D R9 270 '14 Series Club3D R9 270 '14 Series 
RAMHard DriveHard DriveCooling
G.Skill RIpjaws 1600mhz CL9 1.5v Kingston V300 240GB SSD 2TB Seagate Barracuda 64MB cache Antec Kuhler 1250 2.0 
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(10 items)
 
  
CPUMotherboardGraphicsGraphics
Athlon x4 860k Crossblade Ranger Club3D R9 270 '14 Series Club3D R9 270 '14 Series 
RAMHard DriveHard DriveCooling
G.Skill RIpjaws 1600mhz CL9 1.5v Kingston V300 240GB SSD 2TB Seagate Barracuda 64MB cache Antec Kuhler 1250 2.0 
PowerCase
Silverstone Strider Fractal Define R4 
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