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AMD Kaveri A10-7850K Overclock Guide - Page 41

post #401 of 1332
Quote:
So, the VRMs are too small? Hmm....

No, The VRM's on that board are excellent,

http://www.hardwaresecrets.com/article/ASRock-FM2A88X-EXTREME6+/1823/6

The heatsink attached to them is tiny. They simply are not well cooled, and they do get hot, to hot infact when overclocking/overvolting.
post #402 of 1332
Quote:
Originally Posted by yraith View Post

http://1drv.ms/1dGssPj

This is my new rig... I painted the screens on my Rosewill Blackhawk copper.

So, the VRMs are too small? Hmm....

I have tried from the BIOS, but the unstableness when it doesn't work, which is very often, is very frustrating.

If you have the time, I'd try to test each individual OC for stability while leaving the others alone...cool looking rig, btw.

What is your exact ram? I'm sorry if you posted it before at any point, multitasking here... rolleyes.gif
post #403 of 1332
Quote:
Originally Posted by drnilly007 View Post

Quote:
Originally Posted by FunkZ View Post

Thought you'd find these results interesting. All Fire Strike runs used the same system settings other than specified memory changes.

1Gb UMA DDR3-1600 9 - 9 - 9 | 1394
1Gb UMA DDR3-2400 11-13-13 | 1631
2Gb UMA DDR3-2400 11-13-13 | 1621

Heres mine: 1759 cpu 4.2 1.35125 +.0175 offset actual full load 1.344 vcore normal LLC, iGPU 960 2gb UMA, NB 2000 1.2125 +.0575 offset normal LLC actual UNKNOWN , ddr3 2400 9-11-11-31 1T, 14.2 beta driver

Need a way to measure actual load NB core!

http://www.3dmark.com/fs/1835612 For whatever reason the GPU clock does not stay at a constant during the 3 gpu tests but dips throughout. On stock it stays at a constant 720 so this also may be driver related. Even tried higher NB core

I thought everyone did benches on extreme. I know for Valley everyone compares extreme

CPU-Z http://valid.canardpc.com/f1adlq

So with same settings as above except

1900 NB and 1gb UMA I got 1754 http://www.3dmark.com/3dm/2630540
1900 NB 2gb UMA I got 1744 http://www.3dmark.com/fs/1840404

Funny how Funkz got 10 point difference between 1gb and 2gb too

2000 NB and 1gb UMA 1754 http://www.3dmark.com/3dm/2630600
Weird how the 100mhz difference didn't account for any points.
Edited by drnilly007 - 3/9/14 at 8:25pm
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post #404 of 1332
Quote:
Originally Posted by MrMamba View Post

If you have the time, I'd try to test each individual OC for stability while leaving the others alone...cool looking rig, btw.

What is your exact ram? I'm sorry if you posted it before at any point, multitasking here... rolleyes.gif

1 x ($184.99) AMD A10-7850K Kaveri 3.7GHz Socket FM2+ 95W Quad-C $184.99
1 x ($154.99) ADATA XPG V2 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR $154.99
1 x ($104.99) ASRock FM2A88X Extreme6+ FM2+ / FM2 AMD A88X $104.99
post #405 of 1332
Quote:
Originally Posted by RabbitRu View Post

Offtopic,question to drnilly007 (Click to show)
Quote:
Originally Posted by drnilly007 View Post

I wonder if the NB frequency correlates with uma size like gpu bit sizes.

Like the 660ti which is 192 bit and works well with 2gb ram but the 3gb variants don't because of incorrect division of the 192 bit bus x ram.

I run some more tests tonite with 1gb uma and various uma sizes on 1900 nb
For me, as a student studying computer science, it sounds really strange,can I get a proof?
3gb\192b=3*1024*1024*1024*8b\192bits =134217708
2gb\192b=89478472
Both divisible without remainder

I cant find the exact source I read it from but it has to do with the size of each memory chip itself and how many chips used. It was when I was researching 660ti's they have 2gb and 3gb.
Not many cards if any use 1gb chips but 128, 256, and 512mb. GPUs typically run in dual channel with interleaving.
Well if there was correlation then it must be between 128bit memory bus and the size of UMA, or between memory\nb clocks.
I keep my CPU 4ghz,NB 2ghz,memory 2400mhz and iGPU 800mhz,everything divides by 400,cant see some magic boost throught

I tested my memory BW with aida 64,best score was with 2100mhz nb & 2520mhz DDR3 11-13-12 ,about 23500mb\sec read
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post #406 of 1332
validation I was able to accomplish this ... after 6 or 7 bad starts..
The UEFI on this AsRock can only go up to 4.5 ... However the A-Tuning has headroom for 5.8 -- but, I don't want to try that just yet. rolleyes.gif
post #407 of 1332
In as a proud owner of a A10 7850K. Waiting on the rest of my build...
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post #408 of 1332
I will be ordering the my 7850k Thursday, still split on which motherboard to get, up4, extreme 6 or msi.

I will be getting memory as well, 16gig of 2400 or 2600 depending on the board i choose.

Have a corsair 300r case and a h100i cooler ready to go for it already, and the rest of the parts will come from my phenom II 1090t box.

I have heard the MSI g45 board is only 4+2 vrm but am waiting to see how it performs in overclocks before i pass judgement.
post #409 of 1332
I was dead set on the G45, especially when at CES it was clearly an 8+2 VRM, and was stated also as 8+2. Then the kind Goat Eater got an advance loaner to test, and it was curtains on my dreams. I kinda felt like the victim of a bad troll when that happened, or like a kid who just dropped his ice cream cone! But maybe, just maybe the Mosfets will be of high quality, and will allow for high OC's.
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post #410 of 1332
Quote:
Originally Posted by agrims View Post

I was dead set on the G45, especially when at CES it was clearly an 8+2 VRM, and was stated also as 8+2. Then the kind Goat Eater got an advance loaner to test, and it was curtains on my dreams. I kinda felt like the victim of a bad troll when that happened, or like a kid who just dropped his ice cream cone! But maybe, just maybe the Mosfets will be of high quality, and will allow for high OC's.

what happened to this board?
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