Has anyone had any problems with the 2.2vDimm jumper on this board? For some reason it only locks it at 2.0v, not 2.2v like its supposed to. Really sad la, since most DDR2 can easilt survive up to 2.2-2.3v.

Btw, what should I google for when searching for the modded BIOS? So far I've only seen modded bios for the 754 and 939 versions, not AM2.

This post has been edited by lohwenli: Feb 23 2007, 08:07 PM

Hasn't anyone overclocked the Winsor F3 stepping? Its supposed to be as good as brisbane, but -slightly- higher power consumption (10-20w more). And if you look at reviews of brisbane on anandtech and tom's hardware, brisbane is actually slightly slower than windsor at the same clock speed (thats why brisbanes are clocked 100MHz higher than their windsor counterparts-to make up for the slower cache).

I'm not too sure about that, because the Windsor F3 also came out about the same time and overclocks very similarly. The only thing that the Brisbane has over Windsor is that the power consumption is a bit lower even though the stock voltage is the same (another puzzle-shouldn't the voltage be lower?)

I know this is a weird thing to ask (definitely off topic), but has anyone tried undervolting the brisbane core? Because if you look at C2D's voltages, its very much lower than Brisbane. Technically Brisbane -should- be able to use similar voltages, but despite a bit of googling, I haven't found a definite answer. Imagine how low would its power consumption be at 0.8v..underclocking would be required though.

Well, can't wait to see what how the new K8L architecture (or K10, as some re caling it) will perform. First OC result of ES Agena proc has been sneaked out, and it looks good And if you read the K8L architecture overview and the Barcelona previews, you should know that it outperforms C2D when both are at the same clock speed. Only question is, will it overclock high enough to outperform a fully overclocked C2D?

Agena overclock
http://www.fudzilla.com/index.php?option=c...id=631&Itemid=1

K8L architecture (or might be K10)
http://www.xbitlabs.com/articles/cpu/display/amd-k8l.html

CPU-Z can't recognise the proc la..the proc isn't released yet. Thats why it says opteron. Note that the core name is blank. But you can see 4 cores and L3 cache meaning its definitely a K10 processor.

I've just heard rumours that the screenshot might be faked, but I've yet to find confirmation whether it is or not.


It depends, most AM2 rigs don't take up that much power. At 2.4GHz most AM2 rigs only take 150W at most excluding graphic card (which highest is 120-150W for 8800 or 7950GX2 for each card)

Wei, your vcore damn scary for a 90nm processor..1.6v+...

True, though its hard to measure it for such low power consumption. Even icutes don't fluctuate much on DMM readings at that power consumption. Need a osciloscope to check for sure, but I don't have access to one nor can I buy one..can buy a C2D rig with that money..

Oh yes you can, I can turn off my CPU fan on my 3800 x2 by undervolting the processor. 60C max on full load, stock clock. Been offline last few days, or I'd have answered sooner.

YEAH! DMM is the way to go.. Onboard system monitoring chips are (almost) all FUBAR..

I had that problem too on my Tforce 6100. Even with the jumper its only 2.0v. Double checked with a DMM, no mistake there. Heard the Tforce 550 also suffers from the same problem. Any one else also having this problem? Very sad la, since according to datasheets most DDR2 is rated for 2.2v max (but at 60-65C max only).

Yeah, it sux man..and its hard to voltmod for more without messing around with the motherboard power regulation contoller IC. Last time on DDR easy only, can just connect the 3.3v to the vDimm lines so can OC BH-5 kaw kaw. Do that now on DDR2 and you -might- see smoke coming out.

Well just to put things into perpective, those system monitoring chips are pretty off target. I've measured a few boards with a DMM and most of the system health readings are off target by a fair bit. So you don't know how accurate is the reading anyway.

FYI, most crucial ram (micron actually) have a max rating of 2.2v according to datasheets. But hell, if you feel extreme you might just say 'screw the datasheets'... which most overclockers are already doing without realising it, particularly for processors.

It might, go ahead and try; undervolting to 2.1v quite safe (default for tracers is 2.2v rite?) and if its not stable you can always change back the settings.

If I'm not mistake official JDEC DDR2 specifications don't actually call for DDR2 to operate at 1.8v but rather a bit higher (not 100% sure, malas to read through the whole DDR2 official paper). Most DDR2 manufacturers found that the chips would run equally well at specified speeds at lower voltages and lowered the voltage possibly to reduce power consumption and prolong lifespan. But I think its possible, since most ram doesn't take well to undervolting, but can overvolt pretty high without burning out; meaning the voltage is specified towards the lower end of the acceptable range-unlike processors which are usually specified to the middle and can both undervolt and overvolt, though not very far.

This post has been edited by lohwenli: May 8 2007, 05:00 PM

Well, Tforce AM2 boards still overclock well, but there are some quirks, like those mentioned above.

About voltages, most of the time I find that the last digit (last 2 digits for vCore) of motherboard sensors not accurate. Guess you're just lucky then, your board reports accurately. Also depends on what software you use, some have been calibarated to give better readings.

The amount of cache is the same, but the cache runs slower. Google review to find out more about it.

memtest86 is better for memory. Hell lot better, in fact. Only thing that sux is you have to reboot the whole PC (but if you're overclocking, that should be pretty common, no?).

Speedfan is also pretty good for temps, plus you can graph it. But most of the time you'll have to figure out which temp is which (they're not labeled properly) and some of the temps don't actually record anything.

jy14,
How to use memtest-burn the cd from the iso, or make the floppy/thumbdrive from the install utility. Then reboot the PC from the disk you created.

Prime95-after install, select stress test only. Then for ANY dual core processor, make a copy of the program shortcut for every core available on the processor. In each shortcut's properties, add the parameter -A*, where * is any number as long as none of the shortcuts have the same number; counting up from 0 is usual. Then start all the shortcuts, and you'll have multiple prime windows running. Set affinity (under Advanced) for each window to a seperate core. Then run the Torture Test under options. Prime tests the processor, and also the memory for the "blend" option, though memtest is still better for memory.
Alternative, use Orthos (I haven't used this much myself)

And lastly, superPI tests both memory and proc, but you have to do 32M to be certain. 1M is just too short, no processor could heat up enough to really prove its stable under even the most extreme of conditions.

mind posting the link? haven't had much luck finding it.

Also I wonder how effective is it, as windows will use a noticable chunk of memory, and that chunk will not be tested.

Interesting. First time I saw it I actually took no notice because the program was so simple. Might not be good enough for a full stability check, but enough to find a rough limit for memory overclocking. Thanks.

Ram will overclock differently with a different memory controller, just because the ram will reach DDR1000 on a C2D setup doesn't mean it will do the same on a AM2 setup (not that AM2 really needs that much memory bandwidth). Better if you set so that the HT link and DDR are NOT overclocked at all while you overclock your processor. Trust me, it'll save you a lot of headache later when you try to figure out whats holding your overclock back. In any case its pretty much guaranteed that anything will run stable when its running below default, so you can also go easier on stress testing (only test what you're overclocking).

Generally,

Processor will be stable if the voltage is at or above default while running at stock speed or slower. Ditto for HT link.

Memory will be stable if the voltage is at or above default while running at stock speed or slower with default or looser timings.

There are a few exceptions, but very rare. Mostly on very specific pieces of hardware only (typically memory).

possible, though unlikely. Sometimes processor micro-code updates are put together with bios updates.

Hmm, for the Tforce 6100 AM2 its 1.85v.

Yeah! Another NF-M2 nview user. I'm almost ready to overclock mine, just a few last things to get out of the way. Been very busy since I got it, no time to really play with it

Soulfly, hope you can figure out how to get past the 250HTT barrier. It can clock quite high using clockgen (300+++, which some other people have managed also), but if I OC from bios it will not boot past 250-253. Then again, I haven't had time to really play with it..scarcely even started exploring the voltage and timing options..

This post has been edited by lohwenli: May 16 2007, 08:14 PM

Not bad at all. Did it manage to boot at that settings? What settings did you change in BIOS?

I managed almost 330HTT from windows(clockgen) without touching any voltage or timing. But somehow when i did above 250HTT it wouldn't boot. Will try again using a seperate boot hdd so don't run the risk of screwing up my data. First time when I overclocked my AM2 set, I forgot to drop the HT link multiplier and my whole HDD screwed up. Lucky managed to recover the data and send the disk to RMA. So now I avoid overclocking while using my main disk containing all my precious data. After confirm stable only I put back my hdd.

I will check the voltage myself with a digital multimeter. I don't trust onboard system monitoring sensors especially for voltage.

Pull off the bloody silent OTES, rip off the bubblegum and put some real thermal paste there. Thats one thing Abit f***ed up badly.

And yeah, its SILENT otes-no fans. Case ventilation must be good lar...

Not really, the extreme power 430W is actually reliable
http://www.jonnyguru.com/PSU/eXtremePower430W/