X6 overclocking help please

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iviv

Soldato
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So, got a new 1055T and I'm trying to squeeze all I can out of it, figured I'd start my own thread for it rather than use the larger OC thread, givn that's more for showing over stable clocks rather than help getting there, plus its in the wrong forum :3

Anyhow, I started off with this:


A cpu that sits around 41C on 1.33V basic. I went into the bios, disabled C1E support, K8 Cool&Quiet control and Core Performance Boost (TurboCore?)

Got as far as the login screen, entered my password and my PC reset. Which is odd, since everything should be at default settings apart from those things, which are all power management and shouldn't affect it anyway. Pics of the bios below, the second one shows the voltages, though I have them at auto for now as I have no idea on what to set any of them at, and not sure when I would go about changing any of them.

http://img820.imageshack.us/i/bios1.jpg/
http://img824.imageshack.us/i/bios2.jpg/
http://img809.imageshack.us/i/bios3.jpg/

Still, I did notice that it seems to think the CPU clock ratio gives me a speed of 3300Mhz, which is what I would get if I had a 16.5 multiplier. But my chip's locked to a 14x multiplier, so I've lowered it manually to 14. Also, the ram seems to be underclocked, as it is this and supposedly 1600Mhz, but ram speed isn't important as processor speed and stability right now.

So, I keep everything like that and just nudge up the bus speed 5mhz at a time? I know I'll need to lower the Northbridge and HT link frequence multiplier down because they can't be allowed to go over 2000Mhz, right?

Also, with the normal clocks, AMD Overdrive and coretemp are correctly reporting the 14x multiplier at stock speeds, but CPUz seems to jump between the 14x and 4x multipliers, which is a little weird.

Edit: Just as I posted that my PC reset, still on the stock clocks >_>
I'm going to try running prime some more, but I don't see how it could be related to temps. Not enough voltage, perhaps? Though I would have thought the mobo could at least manage to get the voltage right at stock :(

Edit2: And now its done 15 mins of prime 95 completely stable, TMPIN1&2 hitting 44C. So its obviously not a temperature thing causing it, VID is 1.325 according to AMD Overdrive.

Edit3: That was 15 mins of the cpu only stressing one. Started a blent test, instant freeze. About to run memtest.

Edit4: Noticed the ram is being reported as: Ram: 533Mhz (DDR1067) CAS: 7-7-7-20 / DDR3. I know since its running underclocked, it tightens the timings, but I just tried setting them manually:
http://img197.imageshack.us/img197/4200/memorysj.jpg

Got to windows, logged on and it froze again. Argh!
 
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The HT link and NB link can be pushed up as far as you can go im running at 2600+ on both.

Ive worked out you need a bus speed of 270+ to get 4Ghz on a 1055T.

These chips give themselves a boost under load, you are better tuning off everything that can do this, i haven't got an ASUS board so i don't know where these will be.

Now onto clocking :)

don't use AMD overdrive yet use the bios, you can use it later if you want to tweak once stable.

set your NB/HT to 2000 this is stock.
set the RAM to a low speed auto volts, you can clock this once your CPU is stable.
set Vcore to 1.4 nearly all the decent OCs are around this figure (i have to use 1.475 but im under water)
Bump up your BUS at the start 10 at a time...boot and do 10 runs of LINX/IBT check temps using HWmonitor, try and keep temps under 55 remember its not the cores it is the CPU temp you are looking at.

Come back when you have found the point where you can no longer pass the tests or temps get to high and we can help you tweak your NB/HT and RAM to get the max out of your system.
 
your ram will likely need 1.65 voltage which you need to manually adjust in the bios.

it wont work at 1600mhz settings if you dont give it the right voltage.

TMPIN0 is system
TMPIN1 is cpu
TMPIN2 is northbridge

on your board
 
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Well, at the moment I've turned the focus away from overclocking, towards simply being stable at stock speeds. I'm getting crashes and reboots in windows. I just set the mobo back to the factory defaults and it froze on the 'starting windows' screen. Rebooted, got into windows, and it died when I started a blend P95 run.

Setting ran to 1.65V, other voltages are as seen in this pic: http://img824.imageshack.us/img824/479/bios2.jpg
 
Yup, I flashed to the latest bios a couple of hours ago in case it would help, it didn't.

Right, it froze on the 'starting windows' screen first time, rebooted and into windows, running a prime blend test now, and its not crashed this time! \^-^/

So, I'll give it a little longer stressing, but looks like I'm stable enough to start overclocking. Thanks for the pointers, though I'd have thought that the mobo should have been good enough to know what voltage to run the ram at itself :x
 
just checked my settings and my "normal cpu vcore" is only 1.3750

your bios screen shows yours detected at a whopping 1.4750

same cpu , same board , corsair 1600mhz c9 memory.

all my settings look the same as yours apart from the manually edited dram voltage to 1.65 and my memory settings changed to the proper SPD settings that the board detected wrong on auto but on the SPD colum it shows what they should be.
are you usign gigabytes ET6?
see what vid you get idle with cooln quiet , coreboost and all that other crap turned back on

4x multi 0% load= voltage 1.120
14x multi 100% load = voltage 1.264

(using winrar opened 5 times and all doing the benchmark thing to max out cpu load)

im just curious to see if for some reaosn your board is overvolting your cpu

btw is your board revision 2.0? im using the FA bios btw (came with the board so dont know if its the most recent)
 
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Hmm, I have a pretty awful chip then? Drat it :x

Ram set to the lowest multi, 4x, making it 840Mhz, and set the NB and HT link multipliers to x9, CPU to 210, making those two 1890Mhz, going to stress them now. But given my massive Vcore, I guess 3.5 is a more realistic target than 4.0Ghz. Oh well, such is life.
 
i dont know heres my HWinfo screen of 100% load
hmmtx.jpg
 
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what have you set your Vcore to DONT leave it on auto.

Excellent stuff mate now try and give it some welly :P
 
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Its 1.475V according to the bios, that's what its always been at, showing as either 1.325 or 1.3v in windows programs.

Testing at 230mhz now.

And 900 seconds, pushing 57Gflops, which is probably good. 240 time! I've lowered the HT and NB multi's down to x8, so they are at 1920Mhz, just because I only want to be overclocking one thing at a time :)
 
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Right, I just ran the burn test at 240Mhz, and time went back up to 955 seconds, 49.5Gflops. I'm assuming this is just down to me lowering the NT and NB speeds? Test finished stable, so I guess so :p

250Mhz finished in 834 seconds, 61Gflops
 
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Tried to set it to 260Mhz, and I get the message on boot:

The system has experienced bood failures because of overclocking.
Last settings in BIOS setup may not coincide with current H/W states.
Current CPU Speed: 14.0 x 200Mhz
Current Memory speed: 1066Mhz
Current HT Speed: 2000Mhz

Press DEL key to enter the BIOS setup, or press any rest of keys (sic) to continue.


So... more voltage needed, or what? Its a rather cryptic error which tells me absolutely nothing :x

Edit: After messing around with lots of voltage options, pushing up the NB by 0.25v has got it booting again. Huzzah!
Edit again: Wait, no, I forgot to set the cpu freq back to where it was before, still no boot :x

Got it to boot!

CPU Freq 255Mhz
NB & HT Link: 8x multi = 2040Mhz
Memory clock 4x = 1020Mhz
CPU PLL voltage: Normal = 2.5V
DRAM Voltage: 1.650V
NB Voltage Control: 1.320V
Sideport mem volt control: Normal = 1.6V
NB/PCI-e/PLL Voltage Control: Normal = 1.8V
CPU NB VID Control: +0.050V = 1.2V
CPU Voltage control: +0.125V = 1.4500V
Click to expand...
 
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(Sorry for all the posts, just keeping things seperated)

http://img685.imageshack.us/img685/9486/3570.jpg

That's it with the voltages I mentioned above, 3570Mhz, and touching 60C. Given 62's the cut off, and it won't boot with lower voltages, I guess that's about it for the overclocking, at least of the FSB? Especially since the burn test finished much faster at 5mhz less :x
 
Im surprised you need the Vcore that high for that overclock have you tryed to turn it down a notch keeping all other settings the same?
 
I'm using the Thermalright IFX-14. It did great for my E6600. As for the VID, that's what the mobo said to use. I'll snap a pic of my current voltages in a moment, but I'm not sure how much higher I should raise any of them, especially since I'm currently hitting 60C in stress tests, though then again hopefully I won't be under 100% stress too much.
 
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