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Topped out on 3800 X2 ..?


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#1 cegras

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Posted 26 January 2008 - 03:24 PM

With dividers on the RAM (and loose timings), the board hiccups above 275. (275 was OCCT stable)

I will change the 'fsb' to just a bit over (say 277), and the board hangs just before it does the whole 'verifying DMI pool data' thing ('backing up CMOS' is what comes after), and then reboots.

Why does it hang here, and are there any suggestions? Upping voltage didn't help it past this little hurdle.

#2 wevsspot

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Posted 26 January 2008 - 05:46 PM

So you're currently running your X2 3800 at 2.65ghz? That's not too shabby :)

Anyway, if you want to post up all of your BIOS settings using the Socket939 OCDB template we can take a look at them and see if there is any other minor tweaking that can be done.

Template is attached. Just replace the values already there, with the actual values from your BIOS.
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#3 cegras

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Posted 26 January 2008 - 07:42 PM

[b]Genie BIOS Settings:[/b]
[color=red]
FSB Bus Frequency  -  266
LDT/FSB Frequency Ratio  -  AUTO
CPU/FSB Frequency Ratio  -  AUTO
PCI eXpress Frequency  -  100Mhz

CPU VID StartUp Value  -  AUTO

CPU VID Control  -  AUTO
CPU VID Special Control  -  Above VID * 110%
LDT Voltage Control  -  1.20v 
Chip Set Voltage Control  -  1.50v
DRAM Voltage Control  -  2.80v[/color]

[b]DRAM Configuration Settings:[/b]
[color=red]
DRAM Frequency Set  -  ???=RAM/FSB:05/6 <- I know it's that divider
Command Per Clock (CPC)  -  Enable
CAS Latency Control (Tcl)  -  2.5
RAS# to CAS# delay (Trcd)  -  03 Bus Clocks
Min RAS# active time (Tras)  -  07 Bus Clocks
Row precharge time (Trp)  -  02 Bus Clocks
Row Cycle time (Trc)  -  09 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
Write CAS Latency (Twcl)  -  Auto
DRAM Bank Interleave  -  Enabled

DQS Skew Control  -  Auto
DQS Skew Value   -  0
DRAM Drive Strength  -  Level 8
DRAM Data Drive Strength  -  Level 4
Max Async Latency  -  Auto
DRAM Response Time  -  Fast
Read Preamble Time  -  Auto
IdleCycle Limit  -  256 Cycles
Dynamic Counter  -  Disable
R/W Queue Bypass  -  16 x
Bypass Max  -  07 x
32 Byte Granularity  -  Disable(4 Bursts)
[/color]


short description:
266x10 @ 2660Mhz, 1.35 + 110%
2.5-3-2-7 @ 2.8


That should be it.

As for other settings, if you really need em I'll reboot and copy them down, but I think I've got all the 'major' settings in there.

I was just wondering why the computer would freeze on the 'verifying DMI pool data' or the step just before it?

My max was 2.75 with ram on dividers, this mushkin kit tops out a 222. : (

#4 alexfort93

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Posted 26 January 2008 - 08:02 PM

That same thing happens to me, I would also like to know why it does that.

#5 wevsspot

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Posted 27 January 2008 - 01:39 PM

Cegras,

Give these settings a try;

[COLOR="Black"][B]GENIE BIOS Setting[/B][/COLOR]

[COLOR="Blue"][B]FSB BUS Frequency....................275
LDT/FSB Frequency Ratio..............X 3.0
LDT BUS Transfer Width...............16 16
CPU/FSB Frequency Ratio..............AUTO
PCI eXpress Frequency................100Mhz
K8 Cool 'n' Quiet Support............Disable
Cool 'n' Quiet MAX FID...............AUTO
CPU VID StartUp Value................StartUp

CPU VID Control......................1.375
CPU VID Special Control..............113%
LDT Voltage Control..................1.30 V
Chip Set Voltage Control.............1.60 V
DRAM Voltage Control.................2.80 V

Run MemTest86+.......................Enabled, disable later[/B][/COLOR]

[COLOR="Black"][B]GENIE BIOS DRAM Configuration[/B][/COLOR]

[COLOR="Blue"][B]DRAM Frequency Set (MHZ).............166 
Command per clock (CPC)..............Enabled
Cas latency (tCL)....................2.5
RAS to CAS delay (tRCD)..............3
Min RAS active time (tRAS)...........7
Row precharge time (tRP).............2
Row cycle time (tRC).................11
Row refresh cycle time(tRFC).........14
Row to Row delay (tRRD)..............2
Write recovery time (tWR)............3
Write to read delay (tWTR)...........AUTO
Read to write delay (tRWT)...........AUTO
Refresh period (tREF)................3120
Write CAS latency (tWCL).............1
DRAM Bank Interleave.................Enabled

DQS Skew Control.....................AUTO
DQS Skew Value.......................0
DRAM Drive Strength..................Level 8
DRAM Data Drive Strength.............Level 3
Max Async Latency....................6ns
Dram Response........................Normal
Read Preamble Time...................5ns
Idle Cycle Limit.....................AUTO
Dynamic Counter......................AUTO
R/W Queue Bypass.....................AUTO
Bypass Max...........................AUTO
32 Byte Granularity..................AUTO[/B][/COLOR]

40335406303_9d0700d9e9.jpg

#6 cegras

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Posted 27 January 2008 - 03:13 PM

wevsspot, thanks for the advice.

Tested ON 275 is stable, however.

I'm trying to keep OC'ing on CnQ because I like it idling at lower temps and using less power when I'm just browsing the net. I know it's stubborn and boorish, but could you bear with me on that ^^;

from 110% - 113% doesn't help me past that step in the bios 'boot up'

#7 ebdoradz

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Posted 27 January 2008 - 03:18 PM

wevsspot, thanks for the advice.

Tested ON 275 is stable, however.

I'm trying to keep OC'ing on CnQ because I like it idling at lower temps and using less power when I'm just browsing the net. I know it's stubborn and boorish, but could you bear with me on that ^^;

from 110% - 113% doesn't help me past that step in the bios 'boot up'


that may be something that make your OC crap out

CnQ have to be disable if you overclock otherwise system hang can appear and limit your OC

#8 red930

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Posted 27 January 2008 - 03:26 PM

Maybe some mod should change the topic to AMD Athlon 3800+ X2 since it sounds like the post is about the upcoming Dual GPU from ATI or something. Maybe it's just me i don't know.....

#9 wevsspot

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Posted 27 January 2008 - 06:30 PM

that may be something that make your OC crap out

CnQ have to be disable if you overclock otherwise system hang can appear and limit your OC


QFT

It was always recommended to completely disable CnQ on the NF4 boards when overclocking.

AMD and nVidia just never got it quite right on that chipset when users started manually messing around with voltages, multipliers, fsb etc.
40335406303_9d0700d9e9.jpg

#10 cegras

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Posted 27 January 2008 - 07:02 PM

wevsspot;

I've been running my settings with CnQ enabled, so I'm not sure what would make it unstable though.

I'll try doing a suicide run with dividers, 280 FSB with CnQ off and the voltage settings recommended.

Can you explain a little what those new ram tweakings will do? I have read through the memory part of the OC'ing guide and it says 4 Drive Strength is good for non-TCCD memory.

#11 red930

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Posted 28 January 2008 - 01:01 AM

Cool n Quiet is only good for people that are trying to consume power, not for overclockers. You don't want your cpu voltage to fluctuate period. Especially when you have it over the stock voltage. Not a good idea, listen to some of the members here.

#12 wevsspot

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Posted 28 January 2008 - 07:55 AM

wevsspot;
I'll try doing a suicide run with dividers, 280 FSB with CnQ off and the voltage settings recommended.

Can you explain a little what those new ram tweakings will do? I have read through the memory part of the OC'ing guide and it says 4 Drive Strength is good for non-TCCD memory.


I always had the best luck with a setting of 4 on Drive Strength too, but since you are wanting to squeeze every last bit OC out of your rig, it's time to start "playing with the values" one point here one point there kind of thing to see if we can get the absolute fine tuning right on the money. Thats another reason I recommended leaving some of the settings on auto. From there we will have to take it one setting at a time.
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