The Phenom II List of Overclocks

[chew*]

Well often it fails before it even gets a chance to heat up. Like if I try 3.5 at stock vcore, I'm lucky if the OS boots. I've been using smartguardian to monitor temps. Core Temp would act funky (temp would get stuck it seems). Anyway, other than the floor fan I don't have many options to lower temps, but I'll post back here if I think of something. I don't own an external temp probe.

Yeah I've played around the with memory. Underclocked it, took some sticks out, etc. I didn't try memtest like you suggested earlier though. Either way it didn't make any difference in stability. It seemed like a memory problem when it kept BSOD (memory dump) but never failed prime. But I don't think it is. I appreciate your help, I think either there are some BIOS issues or I just have a dud. Anandtech was able to get 3.9GHz with stock cooling on my board with an ES.

Did you pass prime blend or just small fft's? If not blend try it if it passes small fft's and not blend your memory timings/subtimings need to be tweaked.

[Rammsteiner]

Did you pass prime blend or just small fft's? If not blend try it if it passes small fft's and not blend your memory timings/subtimings need to be tweaked.

Might try small FFT's later, good point.

I think the BSOD's messed up a few things for what was to be considered stable, almost stable and unstable. Normally if something BSOD's it's far from stable, but this thing brainfarted and just BSOD'd for about everything.

Ive to say it's thus far going good regarding Prime Blend.

285HTT, 13x multi, 3.705Ghz. NB and HT are at a 7x multi and the RAM is running 1:1. Before starting Prime I also ran for a 25% coverage Memtest, no errors. I know 25% or my previous 40% ain't like solid but if something would be really unstable it would have error'd. Now Im running for almost an hour Prime Blend, no issues yet either.

Last thing Im going to do is tweaking the NB a bit. I'd love to and try to get this CPU even higher but Ive been there before since I started OCíng and having 24/7 OC's being just at the edge isnt something you want, just a little ambient rise or whatever and it's all unstable, most of the time this happens when you just forgot the OC's and settings you tried

Maybe I might try and tweak the RAM a bit but this only adds up on numbers most of the time, not all that much on experience behind your PC. Im thinking about tweaking the settings that would have been done via Auto Xpress anyway (which isnt on this board) and tRAS/tRC timings, those are often set way too high.

If this all turns to be stable I might try and reinstall my soundcard again and see if nothing screws up. Creative ain't my favourite want to have brand, nor are soundcards in general, but often they've just a few features which make them shine

[Cybercat]

Did you pass prime blend or just small fft's? If not blend try it if it passes small fft's and not blend your memory timings/subtimings need to be tweaked.

Doesn't matter. Blend or small ffts, it BSOD before it gets the chance to fail them. If it's not BSODing, it will churn away at Prime no problem.

[chew*]

I don't know then wish I could help

[pershoot]

Doesn't matter. Blend or small ffts, it BSOD before it gets the chance to fail them. If it's not BSODing, it will churn away at Prime no problem.

may i suggest a reflash and a nice CMOS clear? then try your hand again. you may have a dud, or maybe something funky is stuck in somewhere that needs to be purged.

as an example,
when i first got the cpu in, i was trying to stabilise 2.6ghz nb and was jacking the volts up towards 1.28v. things started acting quite wierd. occt would only see 3 cores at launch and it was unstable. even after dropping the voltage and the nb, it was still unstable. had to 'killcmos' and then reflash to get it back (an alternate would be to reflash twice via the provided .bat file in the .zip and then clear cmos with the jumper (but it's a pain to do! (i miss ez-clear from the 790fx-m2r))).

good luck.

[Rammsteiner]

Although this was on a 6400+ with broken IMC (Im a good IMC killer), there was a difference between day and night regarding small FFT's and blend. On the otherhand, as said, hardware was broken so you cant expect all results created by that to be 100% legit

Doing 2h Prime Blend already. If Family Guy is done Ill try and get the NB higher

[Cybercat]

may i suggest a reflash and a nice CMOS clear? then try your hand again. you may have a dud, or maybe something funky is stuck in somewhere that needs to be purged.

as an example,
when i first got the cpu in, i was trying to stabilise 2.6ghz nb and was jacking the volts up towards 1.28v. things started acting quite wierd. occt would only see 3 cores at launch and it was unstable. even after dropping the voltage and the nb, it was still unstable. had to 'killcmos' and then reflash to get it back (an alternate would be to reflash twice via the provided .bat file in the .zip and then clear cmos with the jumper (but it's a pain to do! (i miss ez-clear from the 790fx-m2r))).

good luck.

Alright, I reflashed and did a solid CMOS clear. Nothing.

[afireinside]

Hmm thinking about picking one up to replace my E8400. Anyone hit 4ghz on water yet? What motherboard is everyone using?

[Ben_Brown]

Hmm thinking about picking one up to replace my E8400. Anyone hit 4ghz on water yet? What motherboard is everyone using?

Yes on the water and 4GHz. As far as what MB everyone is using, well that seems to vary. Checking sigs for that would be the best way to find out.

[Rammsteiner]

Holy , I just finished a 2.5h run of Prime95 Blend running my multi at 2.565Ghz I seriously need watercooling But Ive said this a million times

[HondaGuy]

Dude, THANKS VERY MUCH for your post! ASUS have been on a roll with new Bios support. When you said the M3A78-T had a new bios, I checked for my "non -T" M3A78. I thought I had the newest Bios for my board. The one I have is dated Dec. 8 2008. They released a new version on the 31st (0901)that I didn't know about. I'm not sure what it added, but I am going to install it as soon as I finish this post.

@Chew ....I ordered my Phenom II 940 today. I can take my curse off all of you now.......


My RAM still hasn't shown up though. I ordered 4GB of OCZ Gold series from newegg with Egg Saver shipping last Sunday and still haven't got it yet. I will never use their EggSaver shipping again.

How is that new BIOS working out for you?

[demonkevy666]

Holy , I just finished a 2.5h run of Prime95 Blend running my multi at 2.565Ghz I seriously need watercooling But Ive said this a million times

I've noticed that when I first boot into windows my temps are high giving it a 10-20 minutes to cool off I get a bout 41C idle at 1.500 volts damn you vista load is then much less then what I was initially getting

Hmm thinking about picking one up to replace my E8400. Anyone hit 4ghz on water yet? What motherboard is everyone using?

well phenom II do bettter the cooler they are. I don't think any motherboard will limit you as long it supports 125watts.

Yes on the water and 4GHz. As far as what MB everyone is using, well that seems to vary. Checking sigs for that would be the best way to find out.

most of use are using 790FX, only SoF did the destroyer and got a lot closer to 4ghz on air (3.979ghz vs 3.779ghz) then we are seem we're getting a bit higher nb speeds.

[HondaGuy]

Demonlevy: Just wondering do you have all 4 cores enabled when booting into windows Vista?

[demonkevy666]

Demonlevy: Just wondering do you have all 4 cores enabled when booting into windows Vista?

yeah I think so. My windows vita just reinstalled a few days ago because something fudged up my media center and I tried to use restore it locked up wouldn't get back into windows at all. Had to wipe the hard drive and completely fresh install. I probably don't have SP1 on it yet. Anyways when Igot back to my tv tuner I found out my digital tuner didn't work at all, only analog.

[Throwed]

Question:

You fellaz that are running a PII 940 already........Is the stock cooler any good or should I just throw my current Arctic Cooling Freezer 64 Pro on it?....or Should I buy a new cooler period?

[chew*]

Question:

You fellaz that are running a PII 940 already........Is the stock cooler any good or should I just throw my current Arctic Cooling Freezer 64 Pro on it?....or Should I buy a new cooler period?

Want my advice? get a TRUE, at least you know temps will not be an issue for your CPU if it can cool a 65nm quad, 45nm PH II should be a walk in the park.

[Rammsteiner]

Grrr!

Im done with Vista now, this is taking the piss.

First I had to remove my RAID card, then my sound card.

Sometimes Im getting a notification that ATI driver stopped working but got restored again. I just installed EvE-Online, started and got a black screen No BSOD, just a black screen.

I dont know, but WTF is wrong with Vista? I mean, lots of people have no issues while lots of other people have a lot of issues I only got XP after SP2, did it go this way with XP too?

Anyway, Im seriously considering to remove everything again and install XP64 Shame though, just bought this Vista license for DX10 and I expected everything to work flawless

[highoctane]

Well I'm having better luck now than when I posted I was stuck at 3.5, reset everything and started again from scratch:
vid set to 1.4375
cpu overvolt - startup or disabled I guess
NB 2ghz at 1.3v
HT 1.6ghz at 1.2v
vdimm 2.2
4x1gb ddr2 800 4-4-4-12

I think this is as far as I'm going to take it until I rig up some mosfet cooling since biostar left them neked and flaming hot.

[merkk1]

Ok here my basic 24/7 clock 3.6 1.45v the rest is set at stock memory 1066@ 2.2v
HDZ940XCJ4DGI
CACVC AC 0848FPMW
9072151L80283

[keithlm]

started and got a black screen No BSOD, just a black screen.

Is your video card overclocked?
AND
Do you have dual monitors?

If so then you have to disable the second one or you can't overclock the video without major problems. (They will work at stock speed.) You don't have to unplug it... just using CCC to disable it works.

This is a known driver issue that many of us are hoping they fix SOON.

Ok here my basic 24/7 clock 3.6 1.45v the rest is set at stock memory 1066@ 2.2v
HDZ940XCJ4DGI
CACVC AC 0848FPMW
9072151L80283

I also have the A79A-S.

I can get about the same as you do on the overclock. I CAN get 3.7 for benching; it is Prime95 stable for 6 hours but I do not consider that good enough to be 24/7.

(And I can do 3.9-4.0 if I increase the NB VID in the AOD to 1.4V, the VCORE to 1.5V. I can do some things but it is not stable; I could CPU validate IF it would let you do that when you use AOD.)

BTW: I also increase the voltages in bios by about 2 steps above default for each one of them. (A bit more for memory... to get 2.116V.)

[Throwed]

How is that new BIOS working out for you?

Well, it's working is all I can say. I don't see anything new added like I did with the Bios I replaced. Eitherway I like to have the newest one available. My PII 940 will be here soon and don't want any problems.


@Chew.....The TRUE is VERY expensive for a heatsink. How's the performance? I don't want to waste 75+ bucks on a heatsink for nada.

[marten_larsson]

Well, it's working is all I can say. I don't see anything new added like I did with the Bios I replaced. Eitherway I like to have the newest one available. My PII 940 will be here soon and don't want any problems.


@Chew.....The TRUE is VERY expensive for a heatsink. How's the performance? I don't want to waste 75+ bucks on a heatsink for nada.

Look at the Xigmatek HDT-S1283, costs less (40-50$) and performs almost as good. (Source: http://www.silentpcreview.com/article818-page5.html; http://www.frostytech.com/articlevie...id=2333&page=4)

In Sweden it's at about 3/4 of the price of a TRUE and that's including a decent fan (compared to the TRUE which is fanless).

[diekul]

http://valid.canardpc.com/show_oc.php?id=486491 This is the highest i can get. Got a htt wall at 265mhz Next week my new ram is coming also hope i can clock a little higher.

[Lightman]

My attemp at max. CPU-Z
XP x64
CPU 940BE 0850BPEW 3918MHz/1.52V
AIR TT120 Ultra + 12cm FAN (room temp 19C)

http://valid.canardpc.com/show_oc.php?id=486558


After some tests I must admit this setting is stable, very stable!
Plus Cinema 4D R10 multi-CPU pass 15400points
SuperPi 1M/4M pass
OCCT 1h not stable, error after 6 minutes ... needs better cooling (or more volts )

[chew*]

Well, it's working is all I can say. I don't see anything new added like I did with the Bios I replaced. Eitherway I like to have the newest one available. My PII 940 will be here soon and don't want any problems.


@Chew.....The TRUE is VERY expensive for a heatsink. How's the performance? I don't want to waste 75+ bucks on a heatsink for nada.

Cpu's not lapped, and i'm not using the high pressure mod, just the True is lapped, we are also taliking 65nm temps. small fft's to increase heat.
This is a push pull with a couple delta fans ( not the really insane ones )

Idle
http://members.cox.net/chewxs/8%20hours%20prime.jpg
Load
http://members.cox.net/chewxs/prime%209hours