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fx-8320, problem with prime95, vcore and overclock

myself

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#26
i'm thinking about the VRMs... with stock multiplier the vcore range is ok, no initial boost and no vdrop.
 

Aquinus

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#27
I'm listening a strange sound from the motherboard when cpu is in full load, sounds like a "zzzzzzzzzzzzzzzz" and i see strange zig zag vcore values.
This sounds like his VRMs are crying for mercy. That board has no heat sync on the VRMs so they definitely need airflow. Could the VRMs themselves be overheating in addition to struggling to power the CPU.

How does the vcore behave when you're not overclocking and you drop the voltage? I got a Phenom II 965 (140-watt version,) and an ASUS board and at higher voltages the VRMs love to whine. More voltage tends to result in a louder whine (since the CPU is drawing more power) at least on the board I got. The difference is I have cooling on the VRMs and it's an 8+1 phase VRM and my voltages are stable. I suspect you're pushing that board a bit too hard and if you are you could damage the board or the CPU if you're not carful. Disable LLC and let the voltage droop. I suspect you'll run a higher chance of hurting your CPU if you enable it. It tends to keep the CPU voltage from spiking by keeping the Vdroop so fluctuations in current and voltage are less likely to cause voltage spikes in the VRM output. Enabling it could cause the voltage to overshoot its designed target and if your VRMs are struggling I wouldn't take the chance that enabling LLC will boost your voltage too much, stressing both the VRMs and the CPU.

All in all, I would run stock settings across the board then see how the voltages look. Also how does your +12v look? (Yes, I know. Measure with a multi-meter if you can, otherwise it's a guesstimate if you read it from software, but get whatever you can.)

i'm thinking about the VRMs... with stock multiplier the vcore range is ok, no initial boost and no vdrop.
Now it really sounds like your VRMs. Poor motherboard. :(
 

myself

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#28
i ve added a passive coolers on my vrms one month ago. this system, at that time, ran well without any problems.

However, should i re-buy my motherboard? :cry:
 
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#29
i ve added a passive coolers on my vrms one month ago. this system, at that time, ran well without any problems.

However, should i re-buy my motherboard? :cry:
get a sabertooth original version its reasonably priced and i can confirm it works with the 8350 and its well priced
the new r2 isnt worth the money
 

myself

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#30
get a sabertooth original version its reasonably priced and i can confirm it works with the 8350 and its well priced
the new r2 isnt worth the money
the sabertooth is too much expensive for me, university don't gave money to us eheh!

what do you think about this?:


Gigabyte GA-970A-UD3
AM3+ socket
Support for 32nm AMD FX-Series 4-core, 6-core and 8-core processors (Bulldozer and Piledriver core)
Support for existing AM3 Phenom II and Athlon II processors
8+2 phase power/VRM with heatsink cooling, and 140W CPU TDP support
4x 1.5V DDR3 DIMM sockets supporting up to 32GB of dual channel memory
Native support for DDR3 at 1066, 1333, 1600 and 1866 Mhz; can support higher mhz through overclocking
AMD 970 northbridge chipset and AMD SB950 southbridge chipset
Support for AMD CrossfireX at 16X and 4X using PCIEX16 and PCIEX4 slots**
Support for 6 SATA6GB/s devices, as well as RAID0, RAID1, RAID5, RAID10 and JBOD
Up to 14 USB 2.0/1.1 ports (8 ports on back panel, and up to 6 through internal USB)
Up to 4 USB 3.0/2.0 ports (2 on back panel, 2 through internal header)
Please note that a 4x PCI-E link will bottleneck graphics cards more powerful than an HD 5770/6770
Integrated Realtek RTL8111E LAN
Integrated Realtek ALC889 HD audio
Up to 7.1 channels
Support for S/PDIF out
Support for Dolby Home Theatre
Expansion slots:
All PCI-E Express slots conform to the PCI-E 2.0 standard
1x PCI-E x16 slot running at x16
1x PCI-E x16 slot running at x4
2x PCI-E x1 slots
2x PCI slots
ATX Form Factor; 30.5CM x 24.4CM
Rev 3.0 boards have UEFI support with dual UEFI BIOS
 
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#31
the sabertooth is too much expensive for me, university don't gave money to us eheh!

what do you think about this?:


Gigabyte GA-970A-UD3

http://www.overclockers.co.uk/showproduct.php?prodid=MB-351-GI&groupid=701&catid=1903&subcat=2046

ASRock 990FX Extreme3

http://www.overclockers.co.uk/showproduct.php?prodid=MB-060-AK

for a few quids mo ithnk u'll be gettin a better board
i've only had 1 gigabyte board and that was a nitemare to deal with so i would not recomment them to any1
 

myself

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Video Card(s) Sapphire 7870 OC
Storage 500gb WD Caviar Black
Power Supply 600W OCZ Modxstream
#32
thank you guys! i ll buy a new motherboard soon!
 

myself

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Processor FX-8320
Motherboard Sabertooth 990FX rev2.0
Cooling CM Hyper 212 EVO
Memory 2x4 Corsair XMS3
Video Card(s) Sapphire 7870 OC
Storage 500gb WD Caviar Black
Power Supply 600W OCZ Modxstream
#33
finally got Sabertooth 990FX rev2.0 :p