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Hit a wall on the Neo2 Platinum

C

chrome0011

Member
Ok, just switched from the Neo2-FIR (k8t chipset) to the Neo2 platinum... got my stable oc at:
HTT 230
10x multi for 2300 core speed
.83 divider for RAM speed of 191.7 MHz with 2.5/3/3/7
Hypertransport at 3x for now

Any tips for going higher? At HTT 235 prime95 gets errors after about 4 mins. The temps seem ok, 32c idle, 45c max load. (Running on air) I feel the chip can go higher, I had it at 240 on the other mobo. Maybe its my unfamiliarity with this mobo? Am I a noob? 😉 Whatcha think?
 
Try raising the Vcore to about 1.5ish and see if that helps. I was able to get my 3200 to 2.4 with 1.5Vcore, 4x HT, 166Mhz divider 2-2-2-5 and it could run Prime95 all night.

Don't mess with overclocking your ram, it's doesn't help really. Read This, it will tell you all you need to know about AMD 64 and Memory.
 
If you can post all the options you have in the CELL menu (the menu in the BIOS that you use for Overclocking), and post what you have selected in those options

I along with others will be able to help you easier

also have you unlocked the hidden options that help the OC, and also what BIOS are you currnetly running
 
Originally posted by: chrome0011
Running bios 1.8... which hidden options do you mean? I'll get my BIOS settings later today. Thanks!
Click to expand...

ok so you are running the latest official BIOS which is a good start, with regards to the hidden options, if you enter the cell menu in the BIOS and keep pressing "shift & F2" and "Ctrl & F3" at the same time you will see some more options appear in the CELL menu, i cant remember the options off the top of my head, i will report back with what those options should be set toaswell
 
right ok


use the following settings as always and the settings marked with X are variable, as you will have to set to what ever is best for the OC

go into BIOS and enter the "Advanced Chipset Features" and keep pressing "Shift & Alt" and "F2 & F3", untill you see more options appear

then set the following:

AGP Aperture size: 128
AGP 3.0 speed: Auto
AGP Fast Writes: disabled
AGP Sideband Addressing : disabled
Syetm BIOS Cacheable: disabled


then enter the Cell menu, and set the following:

DRAM Configuration
Max memory Clock: X
1T/2T: X
CAS: X (2.5/3)
RAS: X
Min RAS: 10
Row Precharge: X

High Performance mode: Manual
Agressive Timings: disabled
NV/ATI Speed Up: disabled
DRAM Drive Strengh: Normal
Spread Spectrum: disabled
HT Frequency: X
Cool & Quiet: disabled
PCI Clock Auto Detect: Enabled
Adjust CPU Ratio: X <---- CPU mulitplier
Adjust CPU FSB Frequency: X <---- HTT
Adjust AGP Frequency: 66
Adjust CPU VID: X <---- CPU Voltage
CPU voltage: X <---- this is a precentage gain for CPU volts
Mem Voltage: X < max 2.85
AGP voltage: leave this at default



So all the one marked with X you will have to test, i would sayusing Zebo's guide


Also this thread from XS is a tips and tricks guide for OCing on this board


hope this helps


RichUK






 
As other have mentioned, you should definitely look at Zebo's guide.

Also, with these boards, they tend to undervolt, so even though you might have it set at 1.5v, you may only be getting 1.4v. I use cpu-z or motherboard monitor to check my voltage.

Which core do you have winchester or venice?
 
I'm actually in the same boat. I have a 3200+ Winchester and the Neo2 Platinum (official 1.8 BIOS), and I max out at 2.3GHz as well. I've also been wondering about the disparity between what voltage is specified in the BIOS vs. what CPU-Z reports. Thus, should I trust what CPU-Z is reporting and maybe up my CPU voltage beyond 1.5 * 3.3% = 1.5495 in the BIOS (whereas CPU-Z reports a little under 1.5V)? I guess the next step up would be 1.5*5%=1.575 (at least in the BIOS). Is this safe for a Winchester core?
 
I think this is like the second thread in 24 hrs. i've seen where the OP couldn't get past 2100-2300 MHz w/o a lot more vcore 😕

I'm getting alarmed that the newer Venices might be losing their high OCing ability...

Edit: Wait, he never said he has a Venice...maybe it's not.
 
Originally posted by: RichUK
Go by CPU-z, this board undervolts and overvolts everything
Click to expand...

Thanks. So just to be sure, 1.5 <= vCore <= 1.55 (as CPU-Z reports), just as Zebo states for 90nm cores?
 
Originally posted by: amdnVuser
I'm actually in the same boat. I have a 3200+ Winchester and the Neo2 Platinum (official 1.8 BIOS), and I max out at 2.3GHz as well. I've also been wondering about the disparity between what voltage is specified in the BIOS vs. what CPU-Z reports. Thus, should I trust what CPU-Z is reporting and maybe up my CPU voltage beyond 1.5 * 3.3% = 1.5495 in the BIOS (whereas CPU-Z reports a little under 1.5V)? I guess the next step up would be 1.5*5%=1.575 (at least in the BIOS). Is this safe for a Winchester core?
Click to expand...

Yup, I'd trust what the third party software is telling you. CPU-Z is good. I use Everest because it will monitor your Vcore voltage as well as temps.

These CPUs can handle a Vcore load of up to 10% over stock easily. So I would raise it up to 1.54 as you stated and see how far you can push the CPU on that Voltage. Keep an eye on the temp and use Prime95 small FFT to test for stability and you'll be good to go.

For comparison I've got my 3500+ Winchester running at 2.56GHz stable with 11x233 and 1.5V Vcore. I've tried 11x237 for 2.6GHz and couldn't get it stable with reasonable temps so I'm approaching my limit.

 
Thanks again. Yes, I've been monitoring my temps in nTune and in the BIOS, and IIRC, I go up to between 42 and 45 deg. C. under load (i.e. Prime95 small Fast Fourier Transforms) and 33-35 deg. C. idle (with my max CPU clock).

Also, I guess I was asking if I should specify 1.575v in the BIOS since 1.54v in the BIOS translates into < 1.5v in CPU-Z. So do you think this is OK?

Lastly, just out of curiosity, is there a way to manually set the CPU voltage (vs. specifying a % over the CPU VID)?
 
OK, one last question. I've always wondered, how long should one run memtest86 tests 5 and 6 (as outlined in Zebo's guide)? Thanks.
 
Originally posted by: amdnVuser
Thanks again. Yes, I've been monitoring my temps in nTune and in the BIOS, and IIRC, I go up to between 42 and 45 deg. C. under load (i.e. Prime95 small Fast Fourier Transforms) and 33-35 deg. C. idle (with my max CPU clock).

Also, I guess I was asking if I should specify 1.575v in the BIOS since 1.54v in the BIOS translates into < 1.5v in CPU-Z. So do you think this is OK?

Lastly, just out of curiosity, is there a way to manually set the CPU voltage (vs. specifying a % over the CPU VID)?
Click to expand...


unfortunately the voltage stated in the BIOS is not what is actually being produced, as this motherboard under volts (so thank god for the percentage over VID) .. for me to reach 1.5v i need to set 1.55v and 8.3% in the BIOS .. but im am running 1.6v at the moment and to get that i have to set it at 1.5v (not 1.55v) and 10% over VID .. and that fluctuates between 1.593 to 1.623 ..

hope that helps 😉
 
Thanks. First, I'm definitely using SATA 3 (I found out rather quickly that SATA 1 and 2 weren't locked when I 1st put this system together).

Secondly, I tried 1.5v CPU VID and 5% in the BIOS, and boy did my CPU temp start increasing. CPU-Z fluctuated between 1.504 and 1.536, and Everest showed me at 1.5. My idle CPU temp @ HTT = 232, 1.5v and 3.3% was ~33-35 deg. C. whereas the temp @ HTT = 237, 1.5v and 5% was ~40-43 deg. C. Thus, I'm just going to max out my memory and be through with it. A 332MHz overclock is OK by me.

Lastly, does anyone know when MSI is going to put the official 1.9 BIOS on their site? I've seen it posted on various forums and sites, but I'd much rather wait until MSI releases it. It's nice to know that K8N Neo2 Platinum users will at least have an upgrade path to dual core.
 
You can always use Clockgen to verify if you locks are working. It's a free download, just make sure you download the one for the NF3 chipset
 
Originally posted by: chrome0011
Just to check, the locked SATA ports are the ones closest to CPU?
Click to expand...


Correct. The ones just above the AGP slot (or below the CPU) are locked, the ones lower on the mobo are not.
 
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