The AMD Vishera Owners Klub - the new FX CPUs on old AM3+ mobos!

[MacClipper]

Core Unparking - Reminder
Coder Bag: Disable CPU Core Parking Utility

To all new owners of multi-core CPUs, do consider giving this tweak a try cos it may make a difference in your crunching. One benchmark which shows dramatic gains is WinRAR, jumps up by almost 1000 points.

HTH

 

[bhtan83]

MacClipper, can share with me which cooler r u using when doing the loaded oc test?

Looks like ur FX8350 can attain 4.5ghz at lower temperature compared to my FX8320.

 

[MacClipper]

MacClipper, can share with me which cooler r u using when doing the loaded oc test?

Looks like ur FX8350 can attain 4.5ghz at lower temperature compared to my FX8320.

Already listed above, repeat here for you. See it?


★ FX-8350 1245PGN@4.5GHz no Turbo | 8GB KVR1333@1866 | Antec 920 | CHVF | HIS HD7850 IQ X Turbo | Corsair AX760i ★


8320 < 8350 binning is to be expected else everyone would just buy the 8320. Which batch is your 8320 (best if got photo of the chip) and what are the VIDs of your chip?

Besides binning playing a part, perhaps this new chip sports a flatter IHS (= better heat transfer) compared to my older sample, the load temps seem indeed lower.

 

[bhtan83]

Already listed above, repeat here for you. See it?


★ FX-8350 1245PGN@4.5GHz no Turbo | 8GB KVR1333@1866 | Antec 920 | CHVF | HIS HD7850 IQ X Turbo | Corsair AX760i ★


8320 < 8350 binning is to be expected else everyone would just buy the 8320. Which batch is your 8320 (best if got photo of the chip) and what are the VIDs of your chip?

Besides binning playing a part, perhaps this new chip sports a flatter IHS (= better heat transfer) compared to my older sample, the load temps seem indeed lower.

Thanks for sharing. I must have missed the list of specs.
I don't remember which batch.
I clock to 4.4ghz @ 1.385V, 71ºC at max load. Using Arctic MX5.

 

[morgankell]

71 is a bit high. Is it socket or core temp. Amd recommends < 62 for core temp.

 

[MacClipper]

...
I clock to 4.4ghz @ 1.385V, 71ºC at max load. Using Arctic MX5.

Pretty good job but 71C is a bit high for such clock/volt if talking about core temps.

71 is a bit high. Is it socket or core temp. Amd recommends < 62 for core temp.

Yeah, impt distinction to be made as stated.

 

[bhtan83]

Pretty good job but 71C is a bit high for such clock/volt if talking about core temps.


Yeah, impt distinction to be made as stated.

71ºC is socket and core temperature is around 63ºC.

Looks like overall still pretty high compared to 8350.
I shall get the next 8550 and give it a try. Hehe..

Edit: Dear MacClipper, how do u lower the Vcore when the cpu is on idle?

 

[MacClipper]

Your rig looks OK actually though the load temp is on the borderline side of high. What kind of CPU cooling are you using?

You have to use Offset Vcore setting (vs Fxied) to achieve the idle voltage drop.

And the maths behind sweetspot o'cing as explained by those with a lot of experience with AMD o'c
The Stilt
RGone

 

[bhtan83]

Your rig looks OK actually though the load temp is on the borderline side of high. What kind of CPU cooling are you using?

You have to use Offset Vcore setting (vs Fxied) to achieve the idle voltage drop.

And the maths behind sweetspot o'cing as explained by someone with a lot of experience with AMD o'c
The Stilt

I'm using Thermaltake water 2.0 extreme.

How do I determine what is the minimum vcore I need or how much can I offset?

Thanks for sharing that link.

 

[MacClipper]

How do I determine what is the minimum vcore I need or how much can I offset?

To do proper Offset Vcore settings, you will need to determine the stock VID values of your specific CPU so you have to set your CPU to stock clocks 1st.

I am running both my CPUs at 4.5GHz 1.40V but they have different load VIDs (non-Turbo). Thus

CPU 1 - load VID is 1.35V, the Offset needed is +0.05V

CPU 2 - load VID is 1.375V, the Offset needed is +0.025V

The CHV has very good Vcore regulation and the UEFI reports the Vcore reading too so it is a very easy mobo to experiment with Offset setting. Just tinker around, the learning curve is not steep on this mobo.

HTH

 

[MacClipper]

Scorching hot day today probably 34C at 5pm, just did a back to back a 2 HD movie transcoding session to check core load temps - chey only 57C max, PASSED!

No way any Ivy or even Sandy chip can do a similar 4.5GHZ@1.40V o'c and ~100% transcode loading at such low max load temps with the same cooling.

 

[bhtan83]

That's because the surface area of our chip is much larger too.

 

[MacClipper]

Well, the Intel 3820 has only half the number of active cores with an even larger IHS but the load temps still aren't comparable...

Google

 

[MacClipper]

While stumbling around for some info for FX-8350 vs Intel i7 3820, found this page.
PassMark - AMD FX-8350 Eight-Core - Price performance comparison


Guess which processor tops the CPU Value (CPU Mark / $Price ) as of today according to this site?

 

[MacClipper]

[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club

For anyone who was curious about TIM placement for 8 Core PD's

Pea Size dot of TIM in the center works fine as you can see it will offer great coverage for the CPU Die.

Got this from another member. It's ok to delid a dead PD, but not a working PD.

 

[MacClipper]

How to get DRAM 2600 MHz+ at Vishera FX?

There is no real performance improvement above DDR-2133 on FX CPUs as there is no integrated GPU.
You'll probably get much better performance with NCLK(Hi) : DRAM(Lo) configuration instead of NCLK(Lo) : DRAM(Hi).

Increasing the NCLK frequency will speed up the L3-caches which will bring more usable performance than memory above DDR-2133 ever will.

 

[MacClipper]

Handbrake
Among the best real world stress loading apps out there, peaks at full 100% overall load while transcoding.

 

[morgankell]

My computers mid-life upgrade is finally done.
new specs

FX 8320 @ 4.25 ghz @ 1.3875 V
Asus M5A99X Evo R2
Crucial Ballistix Sport VLP DDR3 16 Gb @ 2000 mhz
Midgard II Casing with 5 x 120 mm fans
Deepcool Neptwin push-pull
Intel SSD 335 240 Gb
Samsung F3 1 Tb

Photos (pardon the poor camera shots):

Top view

Front view (casing closed)

Lateral view (casing closed)

Oblique view (casing open)

Lateral view (casing open)

Close shot of the neptwin

It is one huge heatsink (and very difficult to install too)

 

[morgankell]

Quick remarks

1) M5A99X Evo R2.
- overclocks much better than my old gigabyte, manages to oc my FX 8320 to 4250 at below stock VID (although I suspect with LLC the actual voltage is higher...)
- the bios is much nicer too
- I like the color scheme

Quick post of initial OC result

2) Neptwin
- heavy monster HS (1.1 kg with 2 fans)
- keeps my temp at 51 - 55 core at full load (prime64)

3) Midgard II
Pros:
- nice midrange ATX casing
- easy for cable management,
- has nice fan controller

Cons:
- a bit noisy with 5 fans
- only 1 USB3
- bottom casing intake has no filter (hence I dont use it)
- some sheathing of the cables or at least make them black to fit the casing

 

[bemylove]

No way any Ivy or even Sandy chip can do a similar 4.5GHZ@1.40V o'c and ~100% transcode loading at such low max load temps with the same cooling.

I believe AMD temps sensor is not as accurate as Intel...and it measures only one general spot.
Thats why you see those Phenom2 only 60 degree for all cores while Core shows 65-72 for four cores..something like that.
PD seems to be the same case..