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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 629

post #6281 of 67356
This piece of crap wont run stable any higher then the stock clocks. Tried 4.5 with various voltages and either the computer shuts down, or it makes random errors.
I bought this crap because of the OC results on the net: 4.8-5.0 GHz with 8350s..

My "old" 1366 i7 920 ran at 4137 for 3 years without any errors, with a Hyper TX3 EVO.

Now i have an AMD which runs on 4100 stock, is worse in multitasking, and slower overall, especially in what i do, gaming.


I should've bought a 3770K with a decent board.
post #6282 of 67356
Is there something wrong with my thermal paste? fx-8320 @4.56 idle v .972 at 28c with V8 CM @1315 rmp and all CnQ and others are on, ambient temp around 20c. My case have 6 intake fans and 1 exhaust.

I was trying to OC to 4.9 and testing with CINEBENCH, my Core temps jumped to 89c turning off my pc, socket temp, the last read around 59c
post #6283 of 67356
Quote:
Originally Posted by Frozenstar View Post

This piece of crap wont run stable any higher then the stock clocks. Tried 4.5 with various voltages and either the computer shuts down, or it makes random errors.
I bought this crap because of the OC results on the net: 4.8-5.0 GHz with 8350s..
My "old" 1366 i7 920 ran at 4137 for 3 years without any errors, with a Hyper TX3 EVO.
Now i have an AMD which runs on 4100 stock, is worse in multitasking, and slower overall, especially in what i do, gaming.
I should've bought a 3770K with a decent board.

You are getting abnormal results, for sure. Did you ever lower your cpu nb voltage? I've read elsewhere that it is 1.3v MAX, and that at lower ram speeds and nb frequencies, stock is appropriate.

Found this on another forum:

Piledriver or Vishera, is not like other FX chips, or Phenom X6 or X4. NB speed cannot be set independently like those chips, and this time is directly related to memory speed.

The CPU-NB, up to 1.3 V is fine, sure, but you should not NEED to increase CPU-NB at all, all the way up to 2666 MHz memory(I am not sure on higher since my memory does not go higher).


They follow it with these tips from amd:



1. Set the CPU Water-cooler fan speed to “Extreme” (if not already) to maximize the cooling using your latest ASUS bios, try the following BIOS settings:

 Disable APM_Master_En (disables APM which may cause the CPU to throttle at full load) 

Disable Turbo Core  go to the ASUS VRM settings and adjust everything to the max (I.e: use “High” for CPU Load Line calibration and disable Overcurrent / Thermal protections) – NOTE: you might want to have an extra fan on top of the board to ensure the VRM heatsink doesn’t get too hot. 

2. try CPU voltage values between 1.40…1.55V and find the optimal setting – if the board just shuts down during full load it means it hit OCP limit (this seems to happen once the CPU pulls more than 26.5A from the 12V CPU rails (8pin and 4pin connectors). You’ve hit the OCP limit and should decrease the voltage a bit. When using the “High” setting for load line calibration the board should not reach the current protection limit that easily 

3. CPU NB Voltage can remain at default (or you could adjust it if it seems to improve things – we were able to hold it at default to run at 5.0GHz) 

4. Try a few more CPUs (if available) – you could see 100-300MHz delta going from one CPU to another 
Try disabling cores: o disable cores 1,3,5 and 7 for optimal performance (Cores 0,2,4 and 6 remain active => 4CU/4cores active) o disable cores 4,5,6 and 7 for optimal OC (Cores 0,1,2 and 3 remain active => 2CU/4cores active) 
5. Ensure that the thermal contact between the CPU and the watercooler is optimal – use high quality thermal paste

6. Use the ASUS Monitoring software to keep track of actual CPU Voltage and CPU Temperature


If you can't stabilize it at stock, rma it...
post #6284 of 67356
Thank you very much for the long response, appreciated!

It's stable on stock clocks, my problem is that it cant be overclocked with multiplier.. Not stable at all and makes me mad. Very mad, considering that ppl mention the easy overclockability in every review and forum post. I started this hobby in 1999, all of my computers had been OC'd to the possible max on air, so i have no clue about what's going on here.

But.. I'm not giving up yet, trying to do it the old-fashioned way,

20x multi, and raising the "fsb".
Everything else is kept close near stock clocks if possible (HT2600, NB freq 2200, ram 1333).

In this board, i can set every voltage to a specific value, EXCEPT cpu core, which can only be raised by giving +0.025, +0.050, etc. doh.gif
With +0.050, it gets 1.47V under load (actually its jumping from 1.455 to 1.485).

It's starting to smell like a long fight. boxing3.gif
post #6285 of 67356
Thanks for your input and links
XEON GAMER
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XEON GAMER
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post #6286 of 67356
A new record for me 5303.56 MHz with my FX-8320
http://valid.canardpc.com/show_oc.php?id=2632444
post #6287 of 67356
Quote:
Originally Posted by Bitemarks and bloodstains View Post

A new record for me 5303.56 MHz with my FX-8320
http://valid.canardpc.com/show_oc.php?id=2632444

Awesome biggrin.gif
Edited by ComputerRestore - 12/29/12 at 8:11am
post #6288 of 67356
Quote:
Originally Posted by Bitemarks and bloodstains View Post

A new record for me 5303.56 MHz with my FX-8320
http://valid.canardpc.com/show_oc.php?id=2632444
Nice! Btw your ranking for the superpi score on the bot was ironically weird (7666) lol
Ryzen Shine!
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Ryzen Shine!
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Hard DriveOptical DriveCoolingOS
Samsung 850 pro Hp 1260 I liquid unobtanium Koolance 480mm radiator, 39... Win 7 HP/Winspy 10 64bit 
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24" hp @ 1900x1200 Logitech G19 PC power and cooling 910 watt silencer Thermaltake P5 
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post #6289 of 67356
Quote:
Originally Posted by Bitemarks and bloodstains View Post

A new record for me 5303.56 MHz with my FX-8320
http://valid.canardpc.com/show_oc.php?id=2632444

Very nice! thumb.gif My best so far: http://valid.canardpc.com/2628969
Oxygène
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Oxygène
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post #6290 of 67356
Squeezed a little bit more out
http://valid.canardpc.com/show_oc.php?id=2632587
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