Operton 165 - 2.6 Ghz getting lower scores than a 2.25??

Soldato
Joined
12 Jan 2006
Posts
2,547
I was reading :
http://www.dfi-street.com/forum/showthread.php?t=40178
and it seems accodring to those results raw cpu power is better than optimising your ram and dropping a few mhz as a result. So i increased my divider to 166.
(setup in sig)

I am a noob overclocker, but i think i have finally got my head around the basics. My main sources of info are:
Overclockers UK
Definitive OC Guide
Somewhat complete a64 oc guide

I have followed these guides to the letter, then played around but i seem to have problems getting past the 6k hurdle on 3d mark 06 using 1t timings(which i achieved on 2t timings at 2.3 Ghz).

Some stats ^^:
Max CPU FSB: 290Mhz, i didnt want to take my vcore above 1.475 so stopped here
Max RAM: 250 Mhz

Stock timings on ram: 2.5-3-3-6
Stock FSB: 200Mhz
Stock Multi: x9

Setup 1 - 5/06 divider (200Mhz)
FSB: 290
LDT/FSB: x3
LDT Bus: 16 16
CPU/FSB: x9
PCI Xpress Freq: 101Mhz
Cool n Quiet: Disabled
CPU VID StartUp: StartUp

CPU VID: 1.35 (effective 1.485 when vid special kicks in)
CPU VID Special: 110%
LDT Voltage: 1.20
Chip Set Voltage: 1.50
DRAM Voltage Control: 2.80

Memory Settings
DRAM Freq: 166 (5/06)
CPC: Enable
CAS Latency Control (Tcl): 3.0
RAS to CAS delay (Trcd): 3
Min RAS active time (Tras): 7
Row Precharge (Trp): 03
Row cycle time (Trc): 07
Row Refresh cyc time (Trfc): 11
Row to Row Delay (trrd): 1
Write Recovery time (Twr): 2
Wrote to Read Delay (Twtr): 1
Read to Write delay (trwt): 3
Refresh Period (tref): 2560 (166Mhz 3.9us)
Write CAS Latency (twcl): 1
DRAM Bank Interleave: Enabled

DQS Skew Control: Auto
DQS Skew: 0
DRAM Drive Strength: 7
DRAM Data Drive Strength: 2
Max Async Latency: Auto
DRAM Responce Time: Fast
Read Preamble Time: 6
Idle Cycle limit: 32
Dynamic Counter: Enable
R/W Queue bypass: 16
Bypass max: 4
32 Byte Granularity: Disabled

3d mark 06 score: 5328
SM 2.0: 2581
SM 3.0: 2388
CPU score: 1181


Setup 1 - 1/01 divider (200Mhz)
Using a 1/01 divider i found that the max FSB on my ram i could achieve was 250 Mhz without losing stability, even at 251 i started getting memory errors on test 8 on memtest,
at 253 i was failing both tests 5 and 8

FSB: 250
LDT/FSB: x3
LDT Bus: 16 16
CPU/FSB: x9
PCI Xpress Freq: 101Mhz
Cool n Quiet: Disabled
CPU VID StartUp: StartUp

CPU VID: 1.400
CPU VID Special: Auto
LDT Voltage: 1.20
Chip Set Voltage: 1.50
DRAM Voltage Control: 2.80

Memory Settings
DRAM Freq: 200 (1/01)
CPC: Enable
CAS Latency Control (Tcl): 3.0
RAS to CAS delay (Trcd): 4
Min RAS active time (Tras): 8
Row Precharge (Trp): 04
Row cycle time (Trc): 07
Row Refresh cyc time (Trfc): 11
Row to Row Delay (trrd): 2
Write Recovery time (Twr): 2
Wrote to Read Delay (Twtr): 1
Read to Write delay (trwt): 3
Refresh Period (tref): 3120 (200Mhz 3.9us)
Write CAS Latency (twcl): 1
DRAM Bank Interleave: Enabled

DQS Skew Control: Increase Skew
DQS Skew: 255
DRAM Drive Strength: 7
DRAM Data Drive Strength: 2
Max Async Latency: 7.0
DRAM Responce Time: Fast
Read Preamble Time: 5
Idle Cycle limit: 32
Dynamic Counter: Enable
R/W Queue bypass: 16
Bypass max: 7
32 Byte Granularity: Disabled

3d mark 06 score: 5876
SM 2.0: 2574
SM 3.0: 2472
CPU score: 1695


So increasing the clock speed but chaning the setup to asynchrous actually made the performance worse. And taking the setup onto 1t timings (2.3Ghz, ram settings on auto i got 6005 on the 3dmark) also reduced my score further.

I was under the impression that putting the settings onto 1t would give the system speeds a boost, not reduce them :s

Is there any way i can boost the system performance on 1t timings, or would it be better to go back to 2.3 Ghz on 2t timings as i didnt even really scratch the service in terms of oc'ing.

But surely with higher clock speeds i should be getting higher 3d mark scores?
 
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sorry thought the spec would come up with my sig if i added it in the CP

-DFI LanParty UT NF4 Ultra-D (Socket 939) PCI-Express Motherboard
-Bios 06/23/2005 v6.00 PG
-AMD Opteron UP 165 Dual Core San Diego 1.8GHz 2MB Cache (Socket 939), CCBWE 0601 UPMW stepping
-Sythe Ninja Plus Heatpipe with AKSA Ultra Quiet 120mm fan
-G.Skill 2GB DDR HS PC3200 (2x1GB) CAS2.5 Dual Channel Kit (F1-3200USU2-2GBHS)
-MSI NX7900 GTX 512mb (GeForce 7900 GTX)
-Seasonic S12 600W Silent ATX2.0 Power Supply
-Windows XP Pro SP 2

Edit: lol there it is ^^
 
hehe its more why go to 2.6 ghz on 1t timing when i reached 6k on 2t timings with cpu clocked at 2.3Ghz,
i.e whats the advantage of the higher clock speed/faster memory timings
 
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5900,everything on stock, ram switched to 2t timings
Last 100 is relatively easy to do with tweaking, back to getting 2.6Ghz to work ><
http://service.futuremark.com/compare?3dm06=260654
Installed the AMD dual core driver
Was curious what would happen on 2.6Ghz 2T timings,
for some reason (checking using cpu-z), it defaults to dual channel.
But heres the score:
6042
Memory untouched, interestingly enough exactly the same score as you, even tho i should have a higher score because of my gfx card and a couple of extra mhz
To confirm this i ran the same test at 1T timings;
6062
Ran it again on 2.25 with the new drivers
And the result is a lower score.
5858
Seems like the AMD Dual Core driver has a significant impact on system performance

Updated the gfx card drivers seemed to have made a impact, look more like the scores i was getting before i formatted :)
3DMark Score 6160 3DMarks

SM 2.0 Score 2631 Marks

SM 3.0 Score 2533 Marks

CPU Score 1958 Marks
 
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rxmac said:
bit more like it matey, one thing i noticed though, you beat me on shader model2 yet i beat you on sm3, weird huh :confused: nvidia thing maybe?? dunno, decent overall score anyway, nice one :D


Oh your linkies don't seem to work have you made them public / published them?
realised i can only publish one link at a time with a free account, so left the 2.3 ghz one you wanted to see up :)
try this one
http://service.futuremark.com/compare?3dm06=260654
 
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