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AMD Phenom II x4 955, upgrade to AMD FX-8350 Vishera? Worth it? - Page 2

post #11 of 24
Quote:
Originally Posted by RomeSC View Post

Thanks for the replies everyone. I still only have it at 3.6 GHz. Haven't touched the NB as I have never really given a legitimate OC to a CPU. I just upped the multiplier instead.

I suppose I can try to find an old thread on overclocking my CPU, but given its age, are there pretty universal settings for NB etc?

More to the original question, Let's assume I don't over clock the 955 and also won't overclock the 8350 (or OC both). Is the performance jump between the two CPUs significant for gaming?

As far as i can tell your CPU socket is AM3, not AM3+
Can you provide more detail on the motherboard's make and model?
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post #12 of 24
Thread Starter 
Quote:
Originally Posted by Tacoboy View Post

As far as i can tell your CPU socket is AM3, not AM3+
Can you provide more detail on the motherboard's make and model?

I can't believe it but you're right. I thought for sure my board was am3+. So it appears a phenom ii is as good as it will get for me at this point. Makes my choice easy I Guess. Time to start learning about how to really OC this phenom 955.
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post #13 of 24
For anyone that is watching this thread, this may or not be useful. I ran 3d mark vantage on a 960T unlocked to an X6 against an FX-8350 both clocked at 4Ghz - turbo disabled.. The same 7970 was used in both machines, the result was about 1000 mark's higher for the Vishera. All settings other than CPU clock were at stock. The only difference was that I mistakenly had the ram set to 1333 mhz on the Vishera vs 1600mhz on the Zosma.

I have several boards with the nvidia 980a chipset ( MSI NF 980 G-65) on them and have pushed 965's and 960T's to 4.5 ghz +. FSB's have been pushed up to 290 or so on them. Good luck with your rig smile.gif.
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post #14 of 24
On BF3, Vish is a tiny bit faster at stock than a Phenom II is at 3.7 according to Tom's. Once you overclock it a bit, yes, there will be some further slight improvement, but it wouldn't amount to more than a couple frames.

Dragon Age III is going to use a modified Frostbite 2 as well, so as long as you have some type of quad-core, it should be able to run the game competently and probably with similar results to BF3.

Skyrim is a game that just doesn't like AMD processors period thanks to all of the x87, but Vish can push around 5 more FPS than Phenom can, and the frame rates probably drop below 60 enough here for you to actually notice a difference.

So yes, you'll get some modest improvements. The question you need to ask yourself is whether those modest improvements warrant forking over 200 for a new processor. If it were me making the call, I would wait for the Richland (Piledriver 1.5) or Steamroller-based FX to drop in late 2013 or 2014, respectively. But I'm cheap. tongue.gif
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post #15 of 24
Quote:
Originally Posted by L4dd View Post

What games were played on your 8350?

RTS games, RPG's, etc. Starcraft 2 plays abysmally on basically any AMD hardware, and that's a no no for me.
post #16 of 24
Quote:
Originally Posted by ice445 View Post

RTS games, RPG's, etc. Starcraft 2 plays abysmally on basically any AMD hardware, and that's a no no for me.
Blizzard games, other ported games, and etc. are notably faster per clock on the competing Intel C.P.U.s versus A.M.D. because of the lack of threading, which you probably knew, so that makes sense, but I'm optimistic enough to bet that future game titles will use more threads, and A.M.D. hopefully assures this via their eight core A.P.U. that will be used in the upcoming P.S.4.
post #17 of 24
Thread Starter 
Well since it appears I'm stuck with the phenom II, I decided to start my OC journey tonight. Problems right off the bat.

I set the following values considering they appear to be standard for this C3 955BE CPU:

1.) FSB: 200
2.) NB freq.: 2600
3.) CPU-NB volt: 1.25v
4.) HT link: 2000mhz

However I tried setting my vcore processor voltage to 1.4v to start upping the multiplier instead of leaving it on auto. However, when I load windows 7 and run CPUZ, it shows voltage at 1.36v instead of 1.4v. I upped it to 1.4125v in BIOS and now CPUZ shows 1.408v. The really weird part is that I started an OCCT CPU test and the voltage immediately dropped back to 1.36v when OCCT test started.

Not really sure whats going on, or why the voltage is dropping back to some default value. When the OCCT test stopped, CPUZ showed the CPU going back to the 1.408v. Any ideas?

Also. it appears that my CPU fan (Hyper212+) didn't spin any faster as the CPU heated up in OCCT. In 2 minutes it hit 52.5*C and climbing, yet the fan never sped up, even though its set to auto and "optimal" in the BIOS. I know I'm new at this, but it seems like that should be working at least.

Really lost here...
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post #18 of 24
Looks like you are going to need better cooling to go much faster anyhow. You might try reapplying thermal paste and reseating your cooler, but I doubt it will gain you much. Would a 240 mm AIO water cooling setup be an option for you?
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post #19 of 24
Quote:
Originally Posted by RomeSC View Post

Well since it appears I'm stuck with the phenom II, I decided to start my OC journey tonight. Problems right off the bat.

I set the following values considering they appear to be standard for this C3 955BE CPU:

1.) FSB: 200
2.) NB freq.: 2600
3.) CPU-NB volt: 1.25v
4.) HT link: 2000mhz

However I tried setting my vcore processor voltage to 1.4v to start upping the multiplier instead of leaving it on auto. However, when I load windows 7 and run CPUZ, it shows voltage at 1.36v instead of 1.4v. I upped it to 1.4125v in BIOS and now CPUZ shows 1.408v. The really weird part is that I started an OCCT CPU test and the voltage immediately dropped back to 1.36v when OCCT test started.

Not really sure whats going on, or why the voltage is dropping back to some default value. When the OCCT test stopped, CPUZ showed the CPU going back to the 1.408v. Any ideas?

Also. it appears that my CPU fan (Hyper212+) didn't spin any faster as the CPU heated up in OCCT. In 2 minutes it hit 52.5*C and climbing, yet the fan never sped up, even though its set to auto and "optimal" in the BIOS. I know I'm new at this, but it seems like that should be working at least.

Really lost here...

Okay, first of all that voltage drop you see is called vDroop. You can counter it with Load Line Calibration or Load Line Control, whichever your motherboard calls it. Or you could manually counter it by setting the voltage higher but I would not recommend this as you idle voltage would be kind of high. And for the CPU cooler fan not spinning up, try manually setting the fans voltage to 12 volts as that is what it should be at. It will be louder as it will be at full speed constantly but until that problem gets solved I can't think of much else to do. Last but not least, 1.25v for the CPU/NB to be at 2600 Mhz is kind of low, my chip has a decent imc and it still needed 1.275v to run 2600 Mhz stable. However my motherboard refused to run DDR3-1600 ram and a 2600 northbridge without more NB voltage, not CPU/NB voltage, but NB voltage. It wanted 1.115 instead of 1.100.
post #20 of 24
Thread Starter 
Quote:
Originally Posted by VitalShot View Post

Okay, first of all that voltage drop you see is called vDroop. You can counter it with Load Line Calibration or Load Line Control, whichever your motherboard calls it. Or you could manually counter it by setting the voltage higher but I would not recommend this as you idle voltage would be kind of high. And for the CPU cooler fan not spinning up, try manually setting the fans voltage to 12 volts as that is what it should be at. It will be louder as it will be at full speed constantly but until that problem gets solved I can't think of much else to do. Last but not least, 1.25v for the CPU/NB to be at 2600 Mhz is kind of low, my chip has a decent imc and it still needed 1.275v to run 2600 Mhz stable. However my motherboard refused to run DDR3-1600 ram and a 2600 northbridge without more NB voltage, not CPU/NB voltage, but NB voltage. It wanted 1.115 instead of 1.100.

Roger on the vDroop, however I don't see anything that looks anything like Load Line Calibration or Load Line Control in my BIOS.

Additionally, I cannot set the fan's voltage at all. Its not an option. I can choose QFan settings of silent, optimal, performance, or manual. Manual only allows me to set a % fan speed for temps over 60*C, and a fan %speed for temps under 20*C. It wont let me change the temp markers, which is ridiculous given that it defaults to 20* and 60*C...

I set it to performance, and while it still doesn't change, it locks the CPU fan at 1300 RPM, which after a one hour CPU OCCT CPU test the temps never cracked 53*C.

I did come up with two new questions though:

1.) For an unknown reason, my RAM timings changed drastically in the BIOS after manually setting only the CPU multiplier, CPU viltage, CPU/NB voltage, and NB freq. The timings changed from 7-7-7-21-2T to 9-9-9-33-1T in the BIOS. (among other numbers in there that I don't understand). That seems pretty odd. I took a picture of the original timings in the bios screen before I changed anything tonight. Should I manually change them all back? or did it change them all for a reason? (I really dont understand RAM at all. I just know I bought DDR3 1333 CL7 RAM because I read that CL7 1333 is better for gaming performance than CL9 1600 for example.

2.) If I want to try and hit 4.0ghz by changing the FSB instead of setting the multiplier to 20x, I heard it jacks up your RAM timings to change the FSB, but I cant find a guide that deals with RAM changes when you change the FSB, Any help there gentlemen (and ladies)?

P.S. Thanks for being awesome forum members, like usual!
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