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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 448

post #4471 of 67355
Quote:
Originally Posted by Lordred View Post

looking good it is looking like 1.475-1.488v is required for my 8320 to hit 4500mhz. i have soundly lost the chip lotto with this one.

Maybe not LR, remember it takes three solid foundations for OC'ing and getting the most from your particular piece of 'silicon' . 1) good power delivery
2) Good chipset/motherboard
3) the ability to cool it. ***** 3b) the right settings

I can't tell from your sig obviously, but do you have all three of those?
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post #4472 of 67355
I do have all three, and it is in my rig sig smile.gif You just nee to look over one rig, I keep my old K8 3400+ as the primary displayed for the lawls.

I am declaring 4500mhz the cap for my CPU with out exceeding 1.5v 1.488v under load, has passed 3 loops of Linx @ 4gb and a handful of benchmarks so far, will go back in deeper for more stability testing a little later, such as 6gb @ 5 loops and so on, as well as day to day activities

I am using the following though.

1) Rosewill Capstone 750w E-80 Gold (OEM Superflower unit)
2) ASRock 990FX Professional
3)H-100 In pull only with high static pressure fans and at the moment 17c ambient
3b) Fine tuning will be done but I am only making course adjustments to get a rough idea of what I should reasonably consider to be the cap for this unit.

3dm11 of P7131
Graphics Score
7117
Physics Score
8250
Combined Score
6002



So at least from what I can tell at 4500mhz my Physics score is slightly better clock for clock then alot of others.


Edited by Lordred - 11/29/12 at 11:38am
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post #4473 of 67355
I would highly recommend a Kingwin Lazer series psu. If you are not running sli or Crossfire a 650 watt unit like I have will be fine. This unit is platinum certified and will save you money every time you turn it on. They sell them on Newegg and Amazon. They have the best user ratings of all the power supplies I have researched on the net. Much higher user ratings than Corsair,
post #4474 of 67355
Thread Starter 
Quote:
Originally Posted by Lordred View Post

I do have all three, and it is in my rig sig smile.gif You just nee to look over one rig, I keep my old K8 3400+ as the primary displayed for the lawls.

I am declaring 4500mhz the cap for my CPU with out exceeding 1.5v 1.488v under load, has passed 3 loops of Linx @ 4gb and a handful of benchmarks so far, will go back in deeper for more stability testing a little later, such as 6gb @ 5 loops and so on, as well as day to day activities

I am using the following though.

1) Rosewill Capstone 750w E-80 Gold (OEM Superflower unit)
2) ASRock 990FX Professional
3)H-100 In pull only with high static pressure fans and at the moment 17c ambient
3b) Fine tuning will be done but I am only making course adjustments to get a rough idea of what I should reasonably consider to be the cap for this unit.
Warning: Spoiler! (Click to show) Graphics Score
7117
Physics Score
8250
Combined Score
6002
Warning: Spoiler! (Click to show)

So at least from what I can tell at 4500mhz my Physics score is slightly better clock for clock then alot of others.
Warning: Spoiler! (Click to show)

This is a prime example of what I was talking about in terms of RAM relating to physics in 3DMark.

You'll notice that the Cinebench score is significantly lower then those who have 5.0, however his Physics score comes close. His ram is running at 1866 9-10-9.
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post #4475 of 67355
Quote:
Originally Posted by os2wiz View Post

I would highly recommend a Kingwin Lazer series psu. If you are not running sli or Crossfire a 650 watt unit like I have will be fine. This unit is platinum certified and will save you money every time you turn it on. They sell them on Newegg and Amazon. They have the best user ratings of all the power supplies I have researched on the net. Much higher user ratings than Corsair,

Were I in the market for a new PSU, I would look into it, but I really do have a very good PSU and it is no where near time for it to be replaced yet.
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post #4476 of 67355
So, I was looking at this. The guy says he could only reach 4.8Ghz stably @ 10% more vcore (So, 1.4 x 1.1 = 1.54v).
However, at 1.54v power consumption jumped by 100W !! From 200W to 300W. Dang...
He used liquid cooling and crosshair V.

http://www.anandtech.com/show/6396/the-vishera-review-amd-fx8350-fx8320-fx6300-and-fx4300-tested/8
Edited by bios0110 - 11/29/12 at 12:16pm
post #4477 of 67355
Quote:
Originally Posted by KyadCK View Post

This is a prime example of what I was talking about in terms of RAM relating to physics in 3DMark.
You'll notice that the Cinebench score is significantly lower then those who have 5.0, however his Physics score comes close. His ram is running at 1866 9-10-9.

2133 10-11-10 nets me a few more points, I am not a fan of running my ram at 1.6v though.
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post #4478 of 67355
Thread Starter 
Quote:
Originally Posted by bios0110 View Post

So, I was looking at this. The guy says he could only reach 4.8Ghz stably @ 10% more vcore (So, 1.4 x 1.1 = 1.54v).
However, at 1.54v power consumption jumped by 100W !! From 200W to 300W. Dang...
He used liquid cooling and crosshair V.

http://www.anandtech.com/show/6396/the-vishera-review-amd-fx8350-fx8320-fx6300-and-fx4300-tested/8

Then he is having a very very bad day. Even 8320s do not require 1.55v for 4.8Ghz.

Also, I said 1.4v was the max stock VID, I did not say all CPUs start at that number. It is more likely he started with 1.325-1.35v, in which case he would only be using about 1.475v, which is a much more reasonable number.
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post #4479 of 67355
Quote:
Originally Posted by KyadCK View Post

Then he is having a very very bad day. Even 8320s do not require 1.55v for 4.8Ghz.
Also, I said 1.4v was the max stock VID, I did not say all CPUs start at that number. It is more likely he started with 1.325-1.35v, in which case he would only be using about 1.475v, which is a much more reasonable number.


I suspect that there are a handful of 8320's that will not get up to 4800 with reasonable voltage.

I cannot land 4600+ with any real level of stability sub 1.5v, I got a really poor chip this time smile.gif
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post #4480 of 67355
I can't even run at 200x20 with normal volts (due to vdroop). I doubt he was having a bad day. Those anandtech guys are professionals. That's what they do all day and get paid for it. However, he only said 10%... 10% of what is the question (as you point out).

I'm still confused as to what stock means for this FX8320 cpu. AMD keeps this a secret and there is no way to know. I'd like to hear how you figured out what stock is... If I let BIOS auto choose, then it is 1.4v at 200x17.5=3500Mhz. As such, would you claim then that 1.4v is "stock" for the FX8320? In Win7 according to CPUz 1.62 when BIOS AUTO VCORE (1.4v) then vcore fluctuates between 1.4 and 1.44v.

So I really don't see where you are getiing these low 1.3x volts from as "stock" vcore. Not saying you are wrong, just that I am not following your logic.
Edited by bios0110 - 11/29/12 at 1:08pm
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