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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 439

post #4381 of 67227
Quote:
Originally Posted by Covert_Death View Post

wow you were able to lower temps that much just by opening the side?!!?? did you put a fan on it?
[...]
just out of curiousity too, it hasn't been brought up much but everyone did a clean install of windows right??????

Yes well, I have the Antec Three Hundred and the side fan is usually venting air out from the GPU. Now i've turned the side plate around and leaning it against the case so it's actually pushing air in on the VRM heat-sinks. My room is rather hot right now but I can't make it cooler because i'm down with a nasty cold and need the heat to keep me warm :-) so I'm improvising. In any case, from what I could tell the CPU will most likely never reach such load under day to day use.

As for Windows, yes, fresh install. Booted with the old Win just to do a BIOS update (used my old PhII) and then installed the 8320 with a clean windows install. I did change the mobo too so chipset drivers were different, I wouldn't risk not installing a fresh copy of win.
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post #4382 of 67227
I've got a question guys. Currently my 8320 is at 4.7 with 1.49vcore in bios. My problem is when I try to take the vcore one notch higher my computer will just turn off as soon as I start a stress test. Is it the psu? I don't think its heat related because it only takes about 10 seconds for this to happen.

Any ideas?? I really wanna hit 5 ghz.
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post #4383 of 67227
Quote:
Originally Posted by jared872 View Post

I've got a question guys. Currently my 8320 is at 4.7 with 1.49vcore in bios. My problem is when I try to take the vcore one notch higher my computer will just turn off as soon as I start a stress test. Is it the psu? I don't think its heat related because it only takes about 10 seconds for this to happen.
Any ideas?? I really wanna hit 5 ghz.

What psu do you have? It is actually really odd if it just turns off.
post #4384 of 67227
Quote:
I've got a question guys. Currently my 8320 is at 4.7 with 1.49vcore in bios. My problem is when I try to take the vcore one notch higher my computer will just turn off as soon as I start a stress test. Is it the psu? I don't think its heat related because it only takes about 10 seconds for this to happen.

Any ideas?? I really wanna hit 5 ghz.

The number of things that will cause your computer to turn off are relatively low.

Possible causes
-Overstressed powersupply
- CPU temperature to high
-VRM temperature to high.
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post #4385 of 67227
Quote:
Originally Posted by ebduncan View Post

The number of things that will cause your computer to turn off are relatively low.
Possible causes
-Overstressed powersupply
- CPU temperature to high
-VRM temperature to high.

Well I guess I can narrow it down to the psu. I have great airflow and a wc setup. Temps barely reach the 40s. I guess my cheap rocketfish 900w psu finally can't cut it anymore.
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post #4386 of 67227
Thread Starter 
Quote:
Originally Posted by bios0110 View Post

Thanks F3ERS 2 ASH3S, cssorkinman, and KyadCK. I really appreciate your help.

I see that a lot of overcklockers in this thread try to stay bellow 1.4v (a lot around 1.375v) for clock frequencies around 4.5Ghz to 4.8Ghz. I'm a little confused by this.

The FX8320 is 3.5Ghz at stock and only 4Ghz when 4 or less cores are "stressed" (series of intensive operations to 4 or less cores) .
Since KyadCK said that max STOCK vcore is 1.4v, I would take this to mean that 1.4v is sufficient for 4 cores at 4Ghz but not 8 cores at 4Ghz, else AMD would have released the CPU as such and would have impressed most of the entrenched hardware reviewers more than it has.

Therefore, I am confused as to how it would make sense for people to use less than 1.4v for 8 cores at 4.5Ghz to 4.8Ghz overcklocked. Mind you, I'm just asking and not in any way criticising. Just trying to understand.

Also, what is LLC?

Correction, 1.4v is the max VID, the maximum voltage a CPU will ship with for stock clocks. However, due to binning, if they were capable of 4Ghz with just 1.35v, it would probably be a 8350, not an 8320. From here it's reasonably expectable to see 4.6Ghz with just 1.4-1.425v.

However, after 4.6Ghz, the voltage reqs climb like crazy, needing 1.45-1.475 for 4.8, and around 1.5-1.525 for 5.0. As the voltages shoot up massively, so does temp, and that is where you need very good cooling to hold it.

Also, the 8350 is an 8320 with 4Ghz stock speeds, it wouldn't have impressed anyone more then it has.

LLC is Load Line Control. There are generally 6 settings.

AUTO: Let the board do what it wants.
REGULAR: Let the voltage drop a lot when under load.
MEDIUM: Let the voltage drop a little when under load.
HIGH: Keep the voltage steady under load.
ULTRA HIGH: Add a little voltage under load.
EXTREME: Add a lot of voltage under load.

This is the naming convention used my Gigabyte, and I think ASUS uses the same. From this thread, I do not believe MSI has LLC right now (could be wrong), and ASRock uses a %s system that follows the same idea.
Quote:
Originally Posted by jared872 View Post

Quote:
Originally Posted by ebduncan View Post

The number of things that will cause your computer to turn off are relatively low.
Possible causes
-Overstressed powersupply
- CPU temperature to high
-VRM temperature to high.

Well I guess I can narrow it down to the psu. I have great airflow and a wc setup. Temps barely reach the 40s. I guess my cheap rocketfish 900w psu finally can't cut it anymore.

For just a 7950 and 8320? That would have to be one bad PSU. I'd think it's the VRMs, or you turned the temp safety on in BIOS and set it too low.
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post #4387 of 67227
Wait, so hold on. I thought we found raising clock speed past 1600 didn't do much for total bandwidth? And now 3dMark11 scores better in physics when the memory speed is higher? Do those other benchmarks like AIDA and Mexmemm have a coding problem that's holding back Piledriver?

Jared, how old is your PSU and what make and model?

Also, the side fan thing works really well if you replace your side panel with a box fan, but it makes your case really dusty really fast, specially if you're in a messy area. I'm tempted to take a furnace filter and put it over the intake side of the fan and see what I can do. Those box fans pull like 1000CFM.
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post #4388 of 67227
Thread Starter 
Quote:
Originally Posted by sdlvx View Post

Wait, so hold on. I thought we found raising clock speed past 1600 didn't do much for total bandwidth? And now 3dMark11 scores better in physics when the memory speed is higher? Do those other benchmarks like AIDA and Mexmemm have a coding problem that's holding back Piledriver?

Jared, how old is your PSU and what make and model?

Also, the side fan thing works really well if you replace your side panel with a box fan, but it makes your case really dusty really fast, specially if you're in a messy area. I'm tempted to take a furnace filter and put it over the intake side of the fan and see what I can do. Those box fans pull like 1000CFM.

3dMark loooooooves ram speed. Don't ask me why, it just does. 1600 9-9-9 to 1800 9-10-9 kicked up my Ph II's physics by 300, and 1600 9-9-9 to 1866 10-10-10 kicked my 8320's score up by 500.
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post #4389 of 67227
Anyone happen to know what you need to change/increase to increase the CPU Multiplier over 25? My board works fine until 25, but fails to POST at 25.5.

The reason I'm asking is because I'm playing around with a Sub 200 FSB. Working on 150 right now because at idle it can drop to 1Ghz and ~0.9v. Ultra Low Idle Power draw biggrin.gif

But I can only OC to 3.75Ghz.
post #4390 of 67227
Quote:
Originally Posted by ComputerRestore View Post

Anyone happen to know what you need to change/increase to increase the CPU Multiplier over 25? My board works fine until 25, but fails to POST at 25.5.
The reason I'm asking is because I'm playing around with a Sub 200 FSB. Working on 150 right now because at idle it can drop to 1Ghz and ~0.9v. Ultra Low Idle Power draw biggrin.gif
But I can only OC to 3.75Ghz.

Oh man, what motherboard do you have? I wanted to test the high multiplier theory with a low bus but like no one had a bus that did under 200mhz.

In my notes I have nothing that says I've been stable over 25x multi. I can do 202x25 stable and I make about 9 runs in IBT and 203x25.
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