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DFI Lanparty UT CFX3200-DR RD580 Crossfire motherboard review adventures - Page 3 - i4memory.com - different look at memory
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Old 05-05-2006, 07:00 PM   #17
alpha0ne
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Definately a high performance board but should have a sign attached to the box........

" NOT FOR NUBS"
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Old 05-05-2006, 09:42 PM   #18
Kenetixx
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Looks pretty good but overpriced for now old tech with AM2 on the way.
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Old 05-05-2006, 11:17 PM   #19
eva2000
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By Kenetixx
Looks pretty good but overpriced for now old tech with AM2 on the way.
AM2 ain't bring much to the table from the early reviews etc
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Old 05-05-2006, 11:21 PM   #20
alpha0ne
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By eva2000
AM2 ain't bring much to the table from the early reviews etc
And if you look how cheap the really good DDR1 ram costs now is the time to buy socket 939
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Old 06-05-2006, 12:26 AM   #21
kayl
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By dinos22
wow 10xreserved spots
eva=excited
nice eav2000, i like this format. I dont think you would be aloud to do it aywhere else .
I really cant wait to see those 06 scores when its running flat chat
youll get th nice position on orb i bet

Last edited by kayl; 06-05-2006 at 12:32 AM.
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Old 06-05-2006, 06:18 PM   #22
eva2000
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Yeah all the juicy info is at the top of thread instead of all over the place

Added some stock 256MB BFG 7800GTX scores to above post
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Old 07-05-2006, 05:40 AM   #23
eva2000
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Hmmm, I'm finding CFX3200-DR needs more vcore to the cpu to get same prime95/stressprime 2004 stable clocks than DFI NF4 series ?

I'm needing 0.1v more vcore windows on CFX3200-DR than on DFI NF4 for my Opteron 146 which did 3000mhz at 1.42-1.47v on DFI NF4 Ultra-D now needs 1.52v on CFX3200-DR ?

Same Opteron 146 CAB2E 0540FPMW on same water cooling setup = Corsair Hydrocool 200 with s478 to s939 adaptor which gives very consistent and repeatable mounting pressure every mount as you can see from below pic.



DFI NF4 Ultra-D R.AD0 = 3150mhz max 32M at 1.616v
DFI CFX3200-DR R.A00 = 3100mhz max 32M at 1.616v

Wonder if it can come down to memory settings on this board ? Might try a remount of the waterblock.

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Old 07-05-2006, 06:47 PM   #24
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Swapped out my 146 CAB2E 0540FPMW cpu for my 148 CABYE 0543FPMW for the higher 11x cpu multiplier and came across a weird thing not sure if it's related to the Odd Divisor Correct (i don't even have it enabled) outlined at http://www.xtremesystems.org/forums/...ad.php?t=95860
By RyderOCZ
Further info on Odd Divisor Correct:

This function always rounds your Ram divider to an even number, so if you are running 1:1 with an Odd CPU multi, your ram will run slower than the FSB (very similar to the 0.5 multiplier's)

Example: 250 FSB x 11 CPU multi at 1:1 = 2750 CPU speed / 11 = 250 Ram speed (DDR500)
If you enabled Odd Divisor Correct, your Ram divider would be 12 which would put your ram at 229.167 in this example.


Example #2: 330 x 9 at 5:6 (166 memclock) = 2970 CPU speed / 11 = 270 Ram speed.
Enable Odd Divisor Correct and your divider will go to 12 and the ram speed would be 247.5 MHz.

Software - CPU-z, Memtest, Everest, etc will not identify that your ram is running slower. The only way that I have been able to demonstrate it, is with memtest and comparing the measured bandwidth (I will try to confirm in Sandra as well and post some screen shots shortly.)

Now the exception (sort of) to this rule is when you have an odd CPU multi and your divider already comes out to an even number, Odd Divisor Correct will have no effect because there is nothing to "correct".

This can be very beneficial when you are trying to push the CPU that little bit farther, but your ram is holding you back.
We have also noticed that when you are running the "Upl****" ram ratio's with the "E" Die CPU's it will give you "something in between" the given ratio's
When i set speeds to 11x 274HTT with 180 divider A64 Mem divider helper says my ram should be at 231mhz. But in memtest86+ v1.65 bandwidth reports 2943MB/s which i thought was way higher than usual.

So i boot into windows and see that cpuz reports my ram @251mhz 2-2-2-5 which would be consistent with 2943MB/s memtest86+ bandwidth reported.

Click on image for full screenie which includes A64info reporting ram should be 231mhz as well.


I see i do have an even number memory divisor of 12 as pointed out in RyderOCZ's quoted post.

edit: Exception to the rule:
okay seems the exception is the 11x cpu multiplier when using 180 divider the memory is probably indeed running with 12 divisor meaning what cpuz v1.33.1 or higher is reporting for mem speed is indeed the correct mem speed ?

http://www.xtremesystems.org/forums/...8&postcount=87 and http://www.xtremesystems.org/forums/...6&postcount=88 and http://forum.x86-secret.com/showthread.php?t=4505

Bachus believes it isnt an exception just fact that at 11x and 180 the mem divider is for a fact 12x http://www.xtremesystems.org/forums/...2&postcount=96
It's not exception actually. It's something I've been trying to convince Franck (CPU-Z creator) about since summer last year. I'm glad CPU-Z 1.33 finally shows that now... It has nothing to do with Odd Divisor Correct.

At multi x11 and div180, memory speed is CPU/12 and NOT CPU/13 as it would look like from Oscar Wu's table or some monitoring software. Everest has been showing CPU/12 for a long time now. A64Info does not and I think Clockgen has not been updated either.
About to test if it's truly 251mhz or 231mhz


edit2: Ran 32M and definitely the ram is running 251mhz at 11x274HTT with 180 divider the time of 23min 54s is spot on for the ram it seems.



Settings used

FSB Bus Frequency: 274
LDT/FSB Frequency Ratio: 4x
CPU/FSB Frequency Ratio: 11x
RD580 HT PLL Speed: High
HT Bus NMOS Drive Strength: 5
HT Bus PMOS Drive Strength: 5
HT Bus Receiver Impendence: 5
CPU HT Bus Drive Strength: Strong
K8 Cool & Quiet Support: Disabled

CPU VID Control: 1.55v
CPU VID Special Control: AUTO
DRAM Voltage Control: 3.4v
SB PCIE Voltage: 1.8v
NB Analogue Voltage: 1.34v
LDT Bus Voltage: 1.34v
NB Core Voltage: 1.34v

DRAM Frequency Set: 180
CPC: Enabled
CAS (tCL): 2
tRCP: 2
tRAS: 5
tRP: 2
tRC: 7
tRFC: 14
tRRD: 2
tRW: 2
tRTW: 1
tWTR: 2
tREF: 4708
Bank Interleaved: Enabled
Errata 94: Disabled
Errata 123: AUTO
Odd Divisor Correct: Disabled

DQS Skew Control: AUTO
DQS Skew Value: N/A
DRAM Drive Strength: 3 (weak)
DRAM Data Drive Strength: 2 (-33%)
DIMM 1/2 Clock Timing Skew: AUTO
DIMM 3/4 Clock Timing Skew: 150ps delay
Max Async Latency: 7ns (tried 6ns but there was a long delay before booting system)
Read Preamble Time: 5ns
IdleCycle Limit: 16clks
Dynamic Counter: Enabled
R/W Queue Bypass: 16x
Bypass Max: 7x
Burst Length: 4

More tests to confirm ram is at 251mhz 2-2-2-5

Everest Home
Read = 7,191 MB/s
Write = 3,300 MB/s
Latency = 36.1 ns

Sandra 2005 Lite SR3
Buffered = 7,508 / 7,445
Unbuffered = 3,574 / 3,777



.

Last edited by eva2000; 07-05-2006 at 09:52 PM.
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