*** Official Opteron 170 Ocing Thread ***

[w3bbo]

How many volts are you running through that RAM, w3bbo? Your results are more or less what it seems I will settle on too. Not surprising perhaps, as we've got a very similar setup

2.75v. For 2-3-2-6 on a 166 divider for CPU @ 2.7 (Every test Stable)

Full settings on 1009 bios

Jumperfree configuration

AI Overclocking Manual
CPU FSB Frequency 270
SB to NB Overclock Manual
SB to NB Frequency 200
Adjust PCIE Frequency 103
PEG link mode Normal
Over-voltage cpu vcore Enabled
Over-voltage NB vcore Disabled
Over-voltage SB vcore Disabled
Over-voltage Hypertransport Disabled
DDR VCORE 2.75V
FID/VID Change Manual
Processor Frequency Multiplier 10X
Processor Voltage 1.225
DDR Clock Skew manual
delay 450

Disable ECC
L2 cache 1.35 ms
Memory Configuration

Memclock mode Limit
Memclock value 166
Timing mode Manual
CAS Latency 2
TRAS 6
TRP 2
TRCD 3
TRRD Auto
TRC Auto
TRFC Auto
TRWT Auto
MCT Extra timing mode Auto
Dynamic idle counter Enabled
DDR driving strength weak
Enable 32-byte Granularity Disabled
TWR 3 CLK
DDR input strobe skew Disabled
DDR Data driving strength weak 30%
User config mode Manual
Read Preamble 9.5ns
Asyc Latency 11.0ns
Bank Interleaving Auto
Burst length 4 beats
Hardware memory hole Disabled

Chipset

K8 to NB Frequency x3
K8 to NB linkwidth 16/16
SB to NB frequency x5
SB to NB Linkwidth 16/16

For 2.8 I upped the CPU Vcore to 1.3 (+0.2v) and 2.8 and enabled all overvolt settings. For 2.85 - Vcore @ 1.525 and DDR @ 2.9.

Not played with the 1103 bios yet although I doubt it will improve matters.

Happy @ 2.7 for now. When I pluck up the courage to pop the IHS off again I might go for 2.9 which I think the CPU is capable of but temps are holding me back as proper stability benching seems to waver over the 50c mark. Hope this helps m8 and lemme know if you try something different and it works!

 

[Devious]

Devious I do beleave I got my opty from u.

So you did ! small world.

It needed a fair bit of v core though 1.475 v for 2.8ghz

Mine seems to only need 1.360 v for 2.8ghz

Not sure it needed that voltage, it may have gone higher than 2.8Ghz, it seems that yours doesnt or you havent tried yet ?

 

[The $6m Dan]

I'm starting to think that my motherboard is holdng me back (DFI NF4 Ultra-D)
With both my current opty 170 and my old Winnie I couldn't get past much past 270HTT. That was with two different memory, some TCCD @ 1:1 and a 2GB kit using dividers.

The thing that really makes me believe this now is that I can run my Opty at 270x10 but not 300x9. In both cases the memory divider drops the memory to ~200 and I used to run it at 216 with the same timings so I know it's within it's capabilities.

I heard of some people that have managed to unlock their A64s and have found a program called "Crystal CPUID". Has anyone used or even heard of this program? Or am I going to be the Guinea Pig?

 

[Boah]

2.75v. For 2-3-2-6 on a 166 divider for CPU @ 2.7 (Every test Stable)

Thanks. My setup just completed a 12 hour Prime95 Blend and Small FFT run - had to slightly adjust it as it wasn't entirely stable at the full 280HTT (I suspect the CPU might need a little bit more vcore, but I can't be bothered to run the checks individually to see if it's CPU or RAM right now):

- RAM: 229MHz / 2.5-3-2-6-1T / 2.8v
- CPU: 275HTT / 10x / 2750MHz / 1.39v
- HTT: 275 / 3x

All my settings otherwise default / auto.



1. 12 hours of Prime95 Blend on one core, Prime95 Small FFT on the other.
2. Stopped Blend+SmallFFT
3. Started 2x Prime95 Small FFT runs.

 

[Boah]

I heard of some people that have managed to unlock their A64s and have found a program called "Crystal CPUID". Has anyone used or even heard of this program? Or am I going to be the Guinea Pig?

CrystalCPUID is covered here (SPCR). It's kind of a software C'n'Q. It doesn't unlock your AMD if that's what you're asking. AMDs are unlocked for lower multipliers but locked for higher multipliers - the exception is the FX series which are totally unlocked.

 

[The $6m Dan]

Finally found the thread over at xtreme. It's here if any one is interested. It sounds like it's a very difficult and technical process, so I'll not be trying it.

Quick Q for people with high HTT and using a divider. Are you doing anything with the bios settings (other than than the HT multiplier) to accomodate the high HTT or do the memory timings not affect the memroy controller? I'm struggling to get over past 270, and need some suggestions.

 

[teggs]

EDIT: fair play to those who have posted SS's but considering the length of this thread, shouldn't there be a few more banging about? Perhaps someone should make a table....

Sounds like you just volunteered...

 

[Nazbit]

Hi there,

Would some of you guys be able to give me some advice on overclocking my 170?

The stepping is:
OSA170DAA6CD
CCBWE 0551UPMW
1392568L50&&3


I have tried some simple stuff, 210 x 10, 220 x 10 etc etc. Had a quick go at 250x10 but it didnt restart sucessfully, I only tried it once and will try again later.

This is where I am at the moment...stock...

So what should I expect, If I cant get 2.5 to start, should I increase the voltage? if so by how much.

Thanks

 

[Agent WD40]

Tell ya what, I started this thread, so i'll put the table togther!

I'll trawl through the thread tonight and tomorrow morn and put some thing togther and we can take it from there.

Any one have any thing they want to see on ze table in particular?

Agent.

 

[The $6m Dan]

Hi there,

Would some of you guys be able to give me some advice on overclocking my 170?

The stepping is:
OSA170DAA6CD
CCBWE 0551UPMW
1392568L50&&3


I have tried some simple stuff, 210 x 10, 220 x 10 etc etc. Had a quick go at 250x10 but it didnt restart sucessfully, I only tried it once and will try again later.

This is where I am at the moment...stock...

So what should I expect, If I cant get 2.5 to start, should I increase the voltage? if so by how much.

Thanks

What memory do you have, and is it running 1:1 or is it on a divider?
For the time being I'd try to keep the memory at 200MHz using the dividers.
For 250 HTT you want the 4:5 divider to keep your memory at 200MHz, try that and see if it helps, if not then upping the vcore voltage a little might do the trick

 

[w3bbo]

Tell ya what, I started this thread, so i'll put the table togther!

I'll trawl through the thread tonight and tomorrow morn and put some thing togther and we can take it from there.

Any one have any thing they want to see on ze table in particular?

Agent.

What we need is some sort of answer (although there is none) as to what everyone agrees is 'suitably' stable... say 12hr prime 95/sp2004 stable(no flaming please!). And then invite people to post a SS showing that with the following info:

Stepping (inc week/batch numbers if possible)
Vcore
Cooling used
PC spec (if not is sig)
Memory timings

The SS as a minimum show dual instance of P95/sp2004 with 2 instances of cpu z showing the CPU and Memory settings. A temp monitoring utility showing CPU temp while under load would be nice too.

Aslong as we all post the same sort of details then we all have a basis for comparison coz atm everything is a bit misleading. A table would make things a lot simpler for the visitor as a quick reference aslong as it holds a set 'standard'.

Just my 2 pennies worth

 

[Nazbit]

What memory do you have, and is it running 1:1 or is it on a divider?
For the time being I'd try to keep the memory at 200MHz using the dividers.
For 250 HTT you want the 4:5 divider to keep your memory at 200MHz, try that and see if it helps, if not then upping the vcore voltage a little might do the trick

Well im even more of a noob than that im afraid.

My memory is 1GB Pc3200 Geil One, I had prerviously tinkered with its timings but I have set everything to do with memory to Auto for the purposes of starting again with my new cpu.

Can you please explain about dividers?

Cheers

 

[Agent WD40]

Agreed.

The following criteria will be needed.
Screenshot
1) 12 hour prime stable (both cores) - CPU stressing only. No blend carp.
2) CPU-Z Showing CPU and RAM
3) Temps whilst on lod

Info
1) Full PC Spec, even if its in your sig or not.
2) Cooling used.
3) Full stepping info, all three lines.

I'll see what I can find on this forum and then put a table togther.

Cheers all. If you can do this it would be great.

Agent

 

[The $6m Dan]

There will be an option in your bios some where to adjust the "FSB:HTT Ratio"
On my DFI NForce4 Ultra-D it's in with the memory timings. Some one with an Abit Av8 3rd Eye motherboard, can hopefully give you the exact location

A ratio less than 1 will allow you to keep the memory speeds down whilst pushing the HTT up. As far as I'm aware though, the Geil One memory is capable of running at high speed, so once you've got your max cpu clock you should be able to push your memory too.

 

[Nazbit]

Ok thanks for the info,

I have had a good look around, turned the bios inside out, but I cant see this option, is there anything else it might be called?

Cheers

 

[smids]

Ok thanks for the info,

I have had a good look around, turned the bios inside out, but I cant see this option, is there anything else it might be called?

Cheers

Max memory frequency? Should have options for 400(200), 333(166), 266 (133) and 200 (100).

 

[Nazbit]

Max memory frequency? Should have options for 400(200), 333(166), 266 (133) and 200 (100).

The only thing I have similar to that is:

"DRam Clock"

Which has the following options....
Auto
DDR 200
DDR 266
DDR 333
DDR 400
DDR 433
DDR 466
DDR 500

Is this what Im looking for? If so what should I be setting it to? (Its currently ddr400)

Cheers

 

[Big.Wayne]

400 is running the memory 1:1 sync, so if you have it set on this and up your HTT to 250 then your memory will be running at 250MHz. Have a good read of these forums as all the info u need is there, and saves this thread becoming a guide to overclocking for beginners. . .

 

[Nazbit]

Ok, I will move out, sorry to clog the thread up

 

[mercyless]

nazbit, check here
all the info you need
we could tell you how to setup but its best you know abit first.