Opty 144 overclocking

[monkeynuts]

Hi,

I am new to overclocking, but have made use of the great info on this board and the DFI board and come up against a brick wall.

I have found the max of my opteron 144, it has passed prime95 for 8 hours at 2734mhz

I am using the Dfi nf4 sli-d Board and some dual channel 2* 512mb g.skill 3200 zx.

Now, I thought maybe that I am going to have to use a divider with this memory, and I presumed, but am probs wrong that I could slap a 133 divider on the memory and it would work.

When I try and do this 133 divider, the system won't load windows.

I have cpu voltage set to 1.5

I am really stuck me thinks.

Cpu overclocks nicely for me but as soon as i enter the ram into the equation things go down hill.

 

[monkeynuts]

Ok, I left the memory timings as default, will have a check now and get them posted up.

Thanks very much, I am in the dark on this im afraid and any help is much appreciated.

Lee

 

[monkeynuts]

Ok, have tried upping the chipset voltage and LDT voltage to max, this doesn't seem to improve things unfortunately.

Seems I can only use the lowest divider (1/02) or crank down the HTT/FSB Considerably.

here are my bios settings: (phew )
CPUz shows my bios as:
version 6.00 PG
Date 06/23/2005

DRAM Configuration

DRAM Frequency Set (Mhz): 100 (DRAM/FSB:1/02)
Command Per Clock (CPC): Auto
CAS Latency Control (Tcl): Auto
RAS# to CAS# delay (Trcd): Auto
Min RAS# active delay (Trcd): Auto
Row precharge time (Trp): Auto
Row cycle time (Trc): 07 Bus Clocks
Row refresh cyc time (TrFc): Auto
Row to Row delay (Trrd): 02 Bus Clocks
Write recovery time (Twr): 02 Bus Clocks
Write to Read delay (Twtr): 02 Bus Clocks
Read to Write delay (Trwt): 03 Bus Clocks
Refresh period (Tref): 3120 Cycles
Write CAS Latency (Twcl): Auto
DRAM Bank Interleave: Enabled

DQS Skew Control: Auto
DQS Skew Value: 0
DRAM Drive Strength: Auto
DRAM Data Drive Strength: Auto
Max Async Latency: Auto
DRAM Response Time: Normal
Read Preamble Time: Auto
IdleCycle Limit: 256 Cycles
Dynamic Counter: Disable
R/W Queue Bypass: 16 X
Bypass Max: 07 X
32 Byte Granularity: Disabled


Genie Bios Settings

FSB Bus Frequency: 304
LDT/FSB Frequency Ratio: X 3.0
LDT Bus Transfer Width: 16/16
CPU/FSB Frequency Ratio: X 9.0
PCI eXpress Frequemcy: 101Mhz
CPU VID Startup Value: 1.500v

CPU VID Control: 1.500v
CPU VID Special Control: Auto
LDT Voltage Control: 1.20 V
Chip Set Voltage Control: 1.50v
DRAM Voltage Control: 2.60v

 

[monkeynuts]

Ok People,

I have set some of the values in the memory timings going by what is advertised on the OCUK site for the RAM I have.

As I am running on a divider and the rating for my memory is the following:

- CAS Latency : 2-3-3-6 (PC3200)

I have used these values where applicable instead of setting things to auto.

This has improved things a lot.

I have also disabled CPC.

I have dropped the HTT down to 300 from 304

NOW!

Its working, and passed superPI, and OCCT with the new settings

BUT, there is always a but, It that when I make some changes in the bios sometimes it won't boot, even with values I know worked 5 minutes ago. However if I shutdown totally, and power off for a few minutes then it is ok again.

I think I will try the settings as jimbo stated and see how things progress.

Will keep you updated, thanks a lot, your help is saving me hours of pain!

Will keep you updated as I progress.

 

[monkeynuts]

I did try upping the chipset and ldt voltage, but it didn't work, so these are at stock now.

The temps seem ok, cpu idle around 35, under load can reach upto 45-50 i.e when running occt or prime. I think these will go down a bit when I get a good exhaust fan and tidy my case up a bit. These temps are when I ham at 300 HTT.

Nf4 and pwmic seem to be around 48-52, never going any higher than this.

RAM is in the Orange slots currently, I will try swapping sometime today.

Not sure what bios i have, never changed it, the date in cpuz claims:
version 6.00 PG
Date 06/23/2005

I have used winflash to backup my current bios to a file and compared the checksum with some of the latest and it is different, so I will update the bios next and try a fews things.

As it stands, when I can boot correctly, it runs stable, passes superPi, Occt, and all 3dmark, and also 10hrs Prime95, so I think i am nearly there.

Will try the few things above and get back on here with some results, good ones hopefully.

I will be updating the bios from cd rom so i hope thats ok.

 

[monkeynuts]

Ok,

I have settled with a 290 HTT, running at 2611mhz. I said at the very beginning that i would be happy with 2.6, so I guess I am happy with the outcome.

All voltages are at stock. Divider on 140, LDT Multi *3.

Here is how I have my memory settings, used a64tweaker so you can see all values.

I think these are ok, Please tell me if I have something set to a silly number.

Thanks for all your support on getting this up and running, maybe I will try a little harder when I get better colloing and maybe better ram.