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[KAVERI APU] AMD Socket FM2+ - Guide and discussion - Page 111

Poll Results: Which motherboard manufacturer will you be choosing for Socket FM2+?

 
  • 38% (107)
    GIGABYTE
  • 24% (68)
    ASUS
  • 25% (72)
    ASRock
  • 8% (23)
    MSI
  • 2% (8)
    Biostar
  • 0% (1)
    ECS
  • 0% (2)
    Other
281 Total Votes  
post #1101 of 1158
Does anyone have a setting in the bios called PLL voltage? I have it in my FM2 bios, and it helps get a higher OC with less Vcore. Maybe something to look into?
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post #1102 of 1158
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by AJSB View Post

You do that biggrin.gif

I always was curious about how a Kaveri A10 would behave in those circumstances....my goal is to replace the A6-5400K placeholder in my build for a quad core but still using the 72W external PSU...right now i'm very please with i got with the A6-5400K @ 3600Mhz turbo/apm/c'n'q off, iGPU @ 800MHz , RAM @ 2133Mhz and all 3 undervolted....

The A8-7600 could be a good option because i compared both power drains graphics at Tom's Hardware with A8-7600 @ 65W and they are almost the same....
Cutting the A8-7600 to 45W TDP and undervolting it (assuming that it can be done) would be awesome.

...but still, i wanted something with a bit more "punch"....this is why i'm interested in Kaveri A10 cTDP and to know if we can undervolt them if we set a lower TDP...

As I promised to @ AJSB...

There are advanced options in BIOS, my motherboard can reduce the TDP to 45W or 65W.

Kaveri A10 cTDP exist thumb.gif but I have not tried so far, I had some small problems with installing Win8 on SSD ...

In the BIOS there is no advanced voltage settings as it has the Intel platform...in some way !

The problem is that the reference values ​​are not displayed, so when you press + or -, you can reduce or increase the "target" voltage value.

Edit.
currently using 45W option. I have not tested the system, but I noticed that the processor uses x30 multiplier a lot more than x40. Also, the CPU Vcore is reduced from 1.4xx to max 1.128V.
BIOS OPTIONS :
1. CPU Vcore ; Auto, (+), Normal, +0.006V ...,
(-) Not offered and can not be reduced,
2. NB CORE ; Auto, (+), Normal, +0.006V ...,
3. DRAM ; its OK, from 1.500 - 1.650V etc...
4. VCore Loadline Calibration ; Auto, Low, Standard, Medium and Extreme,
5. NBVID Loadline Calibration : Auto, Low, Standard, Medium and Extreme.

I did not found the PLL voltage option.
Edited by Pionir - 4/20/14 at 4:10pm
post #1103 of 1158
Hello folks,

Disappointment. But firstly, what is my rig:

MSI A88XM Gaming
A10-7850k
2x8 GB AMD Radeon Memory 2400 Mhz
Seasonic SSR-550RM 550W
Samsung 840 EVO 250GB
WD 1TB
(everything above packed inside Bitfenix Phenom mATX)

Today I got my new monitor, so I was happy to get it home, install it and... end with unfunctional rig mad.gif
Mobo is just not sending any video-signal to monitor, not via DP, not even via D-Sub...

I tried to pull out one of RAM, to boot only with one module, I tried to reset CMOS using something metal, since jumper was not packed with mobo, I tried only simple boot without even keyboard, and I am still not successful.

I hate how marketing is hyping around "everything is going to work out-of-box", while I am forced to face such problems.
This is my first rig after a long time, and I am really angry, what could go wrong.

Did somebody faced same problems (counting A88X-G45 users as well) ?
Is anybody able to suggest something else ?
Should I pull out the CMOS battery till let's say tomorrow ?
Is it a BIOS problem ? How should I reflash it without working video output ? mad.gif


BobiBoliva
post #1104 of 1158
Quote:
Originally Posted by BobiBolivia View Post

Hello folks,

Disappointment. But firstly, what is my rig:

MSI A88XM Gaming
A10-7850k
2x8 GB AMD Radeon Memory 2400 Mhz
Seasonic SSR-550RM 550W
Samsung 840 EVO 250GB
WD 1TB
(everything above packed inside Bitfenix Phenom mATX)

Today I got my new monitor, so I was happy to get it home, install it and... end with unfunctional rig mad.gif
Mobo is just not sending any video-signal to monitor, not via DP, not even via D-Sub...

I tried to pull out one of RAM, to boot only with one module, I tried to reset CMOS using something metal, since jumper was not packed with mobo, I tried only simple boot without even keyboard, and I am still not successful.

I hate how marketing is hyping around "everything is going to work out-of-box", while I am forced to face such problems.
This is my first rig after a long time, and I am really angry, what could go wrong.

Did somebody faced same problems (counting A88X-G45 users as well) ?
Is anybody able to suggest something else ?
Should I pull out the CMOS battery till let's say tomorrow ?
Is it a BIOS problem ? How should I reflash it without working video output ? mad.gif


BobiBoliva
Remove cmos and turn the power of then place it back after a minute.
Place the motherboard outside the case with only psu cpu ram and power button hooked up.

Since it is AMD mem I sure hope it is on the qvl list you should check that.
post #1105 of 1158
Well, I gave it a chance, and I did everything you suggested. No success, I seriously wonder if APU or MB or RAM is wrong... I guess I will start with RMA of the board, unless you (or somebody else) have a better advice.
Did I caught that some other APUs might be able to work ? Maybe I can go to my store and buy another different APU just to check behaviour.
I don't see any damage on the board... why me frown.gif
post #1106 of 1158
Hey all, quick question(s):

What is the best ATX mobo at the moment for a 7850K?

What cards are capable of Xfire with the 7850K?

Looking at rebuilding my rig and using Kaveri again but want to go ATX this time.
post #1107 of 1158
Quote:
Originally Posted by BobiBolivia View Post

Well, I gave it a chance, and I did everything you suggested. No success, I seriously wonder if APU or MB or RAM is wrong... I guess I will start with RMA of the board, unless you (or somebody else) have a better advice.
Did I caught that some other APUs might be able to work ? Maybe I can go to my store and buy another different APU just to check behaviour.
I don't see any damage on the board... why me frown.gif
I have no idea what could be the problem then it may indeed just be a faulty board. All new boards are UEFI and jumpers for settings will become less and less common so I don't think you'll find anything but are there any jumpers for setting the video output?.
post #1108 of 1158
Quote:
Originally Posted by Bigm View Post

Hey all, quick question(s):

What is the best ATX mobo at the moment for a 7850K?

What cards are capable of Xfire with the 7850K?

Looking at rebuilding my rig and using Kaveri again but want to go ATX this time.


i'd recommend the Asus A88X-Pro

ive had great success with it, everything running smoothly, download the latest bios, even though the one it comes with works fine right out of the box
download the latest driver for the apu and you'll be set

pretty sure only hte 250x is capable of xfire with it
post #1109 of 1158
Quote:
Originally Posted by Bigm View Post

Hey all, quick question(s):

What is the best ATX mobo at the moment for a 7850K?

What cards are capable of Xfire with the 7850K?

Looking at rebuilding my rig and using Kaveri again but want to go ATX this time.

Depends on your use.

If it is for overclocking I would say the Gigabyte F2A88X-UP4, simply because the VRM on that board is in a league of its own and according to BIOS specs it have the widest range of voltages, BCLK etc. you can change in the BIOS.

For gaming I would go with the Gigabyte G1.Sniper A88X, as the features on this board are heavily pointed towards gaming and multimedia.

Personally I find the Asus A88X-Pro overpriced, looking at specs, but the board *DID* get good reviews.
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CPUMotherboardGraphicsRAM
A10-7850K Gigabyte F2A88X-UP4 XFX R7 250 G.SKILL TridentX 2400Mhz CL9 
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Windows 8.1 Corsair AX860i Lian Li PC-A51 
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4770K  ROG Maximus VI Impact HD 7990 Corsair Platinum 2666Mhz 
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Samsung 830 SSD 3 x Alphacool NexXxoS UT60 240 EK Supremacy Precise Mount Add-On Naked Ivy CPU... EK Supremacy - Clean full nickel 
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Alphacool Heatmaster II Gentle Typhoon 1850RPM Windows 7 X64 Silverstone Strider Evolution 750W 
Case
Caselabs S3 w. pedestal 
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Frozen Kaveri
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10-7850K Gigabyte F2A88X-UP4 XFX R7 250 G.SKILL TridentX 2400Mhz CL9 
Hard DriveHard DriveHard DriveCooling
Samsung EVO 120GB Samsung EVO 120GB Crucial M500 240GB Little Devil Phasechange 
OSPowerCase
Windows 8.1 Corsair AX860i Lian Li PC-A51 
CPUMotherboardGraphicsRAM
4770K  ROG Maximus VI Impact HD 7990 Corsair Platinum 2666Mhz 
Hard DriveCoolingCoolingCooling
Samsung 830 SSD 3 x Alphacool NexXxoS UT60 240 EK Supremacy Precise Mount Add-On Naked Ivy CPU... EK Supremacy - Clean full nickel 
CoolingCoolingOSPower
Alphacool Heatmaster II Gentle Typhoon 1850RPM Windows 7 X64 Silverstone Strider Evolution 750W 
Case
Caselabs S3 w. pedestal 
  hide details  
Reply
post #1110 of 1158
Quote:
Originally Posted by maarten12100 View Post

I have no idea what could be the problem then it may indeed just be a faulty board. All new boards are UEFI and jumpers for settings will become less and less common so I don't think you'll find anything but are there any jumpers for setting the video output?.

Well I tried again this morning and no success. Speaking about jumper, in manual I see it should be packed with mobo, but it's not there (jumper for resetting CMOS).
I looked on the internet if anybody else had a same problems and I decided to do a blind shot - I will buy dedicated GPU just to prove if board is wrong or APU is wrong. Some people reported success to get video from GPU, if it will be my case, I will try to completely setup my PC and see if APU will work after latest BIOS upgrade.

Maybe crazy idea - would be possible that RAM has to be in first slot ? Very first boot was done in dual channel population rule (DIMM 2 & DIMM 4).
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