2GB OCZ PC2-8000 Titanium Alpha VX2 4-4-4-15

[eva2000]

These Micron D9GKX based, OCZ PC2-8000 Titanium Alpha VX2 memory modules warrantied at 2.4v + 5% (2.52v vdimm) are so hard to find these past few months. But OCZ was kind enough to send me a pair to play with. Thanks Tony









Ordered a Asus P5B Deluxe/Wifi motherboard just waiting for it to arrive so can play with my Intel Core 2 Quad Q6600 Kentsfield cpu properly as well.

Should be a nice combination once my Hipro Maximizer DDR2 PCB arrives as well



DDR1 PCB..

[eva2000]

2GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GK

System:

• Intel Core 2 Quad Q6600 Kentsfield QUPT B3 Step 7
• Corsair Hydrocool 200EX
• Intel D975XBX Badaxe rev304 1441 bios
• 128MB Gainward FX5200 PCI card
• 2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX
• 3x320GB Seagate 7200.10 SATAII Matrix Raid 0
• 1x74GB Western Digital Raptor 8MB
• Pioneer DVD-RW
• FDD
• 1KW PCP&C SLI PSU

Re-ran some of the single Super Pi v1.5 32M Pi times with stock @2400Mhz 9x266fsb with 2:3 divider and OCZ Titanium AlphaVX2 @400mhz 3-3-3-8 at 2.29v vdimm.



Super Pi 1M & 32M




(Due to higher async upclocked memory speed and tighter timings of 3-3-3-8, the 32M time is 98+ seconds faster than 1:1 266mhz 4-4-4-8 timings!)

Super Pi 8M & 16M


(Due to higher async upclocked memory speed and tighter timings of 3-3-3-8, the 16M time is ~45 seconds faster than 1:1 266mhz 4-4-4-8 timings!)

Dual 32M


(Due to higher async upclocked memory speed and tighter timings of 3-3-3-8, the dual 32M Pi time is ~150 seconds faster than 1:1 266mhz 4-4-4-8 timings!)

[eva2000]

Swapped out my Intel Core 2 Quad Q6600 for now and plucked in my Intel Core 2 Duo E6600 Conroe cpu so I can properly test this 2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX memory



System:

• Intel Core 2 Duo E6600 Conroe QPGE B1 Step 5
• Corsair Hydrocool 200EX
• Intel D975XBX Badaxe rev304 1441 bios
• 128MB Gainward FX5200 PCI card
• 2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX
• 3x320GB Seagate 7200.10 SATAII Matrix Raid 0
• 1x74GB Western Digital Raptor 8MB
• Pioneer DVD-RW
• FDD
• 1KW PCP&C SLI PSU

What better way to see how fast this 2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX is than by benching with Super Pi v1.5

Let's start with 1:1 divider and 3600Mhz 9x400fsb with 400mhz memory clock and see.

2GB Gskill PC6400PHU2 HZ Micron D9GMH 0629 batch

First a comparison of my fastest time with 2GB Gskill PC6400PHU2 HZ Micron D9GMH 0629 batch 9x400fsb 1:1 with memory at 400mhz 4-4-3-5 with tightest memset tweaked timings

on Intel D975XBX Bad Axe rev304 with 2GB Gskill PC6400PHU2 HZ Micron D9GMH 0629 batch and memset tweaked to tightest possible timings


even with E6700 @9x360fsb 4:5 with 2GB Gskill PC6400PHU2 HZ Micron D9GMH 0629 batch @450mhz 4-4-3-4 only managed 14m 05.406s


2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX

So what can 2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX do on same motherboard, Intel D975XBX Bad Axe rev304 ?

how about 9x400fsb 1:1 with memory @400mhz 3-3-3-8 at 2.29v

untweak straight boot from bios


straight boot from bios + memset v3.0 tweaked


Sub 14min for the first time with 1:1 divider and just 9x400fsb!

So OCZ PC2-8000 Titanium Alpha VX2 with tightest 1:1 400mhz timings of 3-3-3-8 is 16.282 seconds faster than Gskill PC6400PHU2 HZ with tightest 1:1 400mhz timings of 4-4-3-5.


.

[eva2000]

Now to see how high this memory can go at looser timings. Seems 550mhz 4-4-4-12 at 2.39v with fairly tight memset timings for tRFC is at least Super Pi single and dual 32M stable. Clockgen was used for the tests as well.

click on images for full screen shots



Single 32M


Dual 32M
half way mark


end result


@560mhz 5-4-4-8 at 2.39v

Change to CAS 5 and loosened tRFC from 28 to 38 while rest of default memset v3.0 timings remain the same.





Max Super Pi 1M @583mhz 5-5-5-15 at 2.39v



Max CPUZ Validation @585mhz 5-5-5-15 at 2.39v



With 2.39v vdimm via pencil mod on Intel D975XBX Bad Axe rev304 with 2:3 divider on 1067fsb strap, this set of 2x1GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX managed

• Max single and dual 32M Super Pi @550mhz 4-4-4-12 at 2.39v = DDR2 1100Mhz = PC2-8800
• Max single 32M Super Pi @560mhz 5-4-4-8 at 2.39v = DDR2 1120Mhz = PC2-8960
• Max single 1M Super Pi @583mhz 5-5-5-15 at 2.39v = DDR2 1166Mhz = PC2-9328
• Max CPUZ Validation @585mhz 5-5-5-15 at 2.39v = DDR2 1170Mhz = PC2-9360

I'm sure I can get alot higher mem clocks with the Asus P5B Deluxe I ordered for delivery next week


.

[luxolex]

Wow Eva2000 thanks for testing this memory. I ordered some from Newegg the other day and it should arrive on Wednesday. (I wish I could thank Tony but I had to pay for mine )

I am holding out for the DFI 680i MB before I can finish my build.

Come On DFI

[filmbot]

eva, you have the Maximizer, why arent you pushing more volts??

[eva2000]

thanks luxolex

filmbot, maximizer isn't compatible with badaxe and i don't know how to volt mod/solder LOL

only 2B pencil is my friend for 2.39v vdimm for now... P5B Deluxe hopefully due next week and is compatible without mods for Maximizer

[bachus_anonym]

Good stuff, George! Not much testing we have seen with this kit, thanks for showing it! You got really nice clocks on that BadAxe! I can't wait for your P5B DLX to arrive, so you can hook up The Maximizer. I'm sure you're going to like it, soldering-gun-phobe

[filmbot]

Thats good to hear.
Hopefully we'll see some C4 action close to 600mhz.

[eva2000]

Good stuff, George! Not much testing we have seen with this kit, thanks for showing it! You got really nice clocks on that BadAxe! I can't wait for your P5B DLX to arrive, so you can hook up The Maximizer. I'm sure you're going to like it, soldering-gun-phobe

thanks guys can't wait myself too especially pairing it with quad core Q6600

[farksy]

So far looking good =D. Awaing higher voltage tests.

[benny08]

Looks to be on the short-list for my next set of sticks. Bit pricey down here though. I'll also be waiting for some tests with higher volts on the P5B and Maximiser from you before making any assumptions. 600 CAS4 would be very nice.

[eva2000]

Changed from Intel D975XBX Bad Axe motherboard to Asus P5B Deluxe.

System:

• Intel Core 2 Duo E6600 Conroe QPGE B1 Step 5
• Swiftech G4 Storm/Thermochill 120.3/MCP650 + Kayl 100W Custom PSU
• Asus P5B Deluxe 0804 bios (upgraded from 0405 bios)
• 128MB Gainward FX5200 PCI card
• 2GB OCZ PC2-8000 Titanium Alpha VX2 Micron D9GKX
• 500GB Seagate 7200.10 SATAII
• LiteOn 165H DVD-ROM
• FDD
• 1KW OCZ ProXStream 1000PXS Quad PCI-E psu

Testing the memory with the following fixed settings with 2:3 divider and used Clockgen for the more incremental values sometimes:

PCI Express Frequency: 100
PCI Clock Synchronization Mode: 33.33Mhz
Spread Spectrum: Disabled
CPU Vcore Voltage: 1.4375 (1.384) - set higher than needed for test purposes
FSB Termination Voltage: 1.3v
NB Vcore: 1.45v
SB Vcore (SATA/PCIE): AUTO
ICH Chipset Voltage: AUTO

Memory Remap Feature: Disabled
Configure DRAM Timing by SPD: Disabled
DDRAM CAS# Latency: 4
DRAM RAS# to CAS# Delay: 4
DRAM RAS# Precharge: 4
DRAM RAS# Activate to Precharge: 12
DRAM Write Recovery Time: 6
DRAM TRFC: 42
DRAM TRRD: 10
Rank Write to Read Delay: 10
Read to Precharge Delay: 10
Write to Precharge Delay: 10
Static Read Control: Disabled

Modify Ratio Support: Enabled
Ratio CMOS Setting: 9x
CIE Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM function: Disabled
Execute Disable Bit: Disabled
PECI: Disabled

Max Stressprime Orthos Large FFTs (~1.3GB memory tested)

• 488mhz 4-4-4-12 at 2.10v
• 495mhz 4-4-4-12 at 2.15v (accidently overwrote the screenshot with another capture)
• 518mhz 4-4-4-12 at 2.25v
• 526mhz 4-4-4-12 at 2.30v
• 538mhz 4-4-4-12 at 2.35v
• 543mhz 4-4-4-12 at 2.40v
• 551mhz 4-4-4-12 at 2.45v

click images for full screenshots

@551mhz 4-4-4-12 at 2.45v bios (AI Suite reports 2.40v)


Stressprime Orthos Large FFTs


Single 32M


Dual 32M

[before]

Very nice work George Lots of high quality screenies shared; thx buddy!

[eva2000]

thanks... now to figure out what increasing vMCH from 1.45v will do for mem clocks


Now to raise vMCH/NB voltage to see if it improves memory overclocks like on 975X chipset motherboards.

PCI Express Frequency: 100
PCI Clock Synchronization Mode: 33.33Mhz
Spread Spectrum: Disabled
CPU Vcore Voltage: 1.4375 (1.384) - set higher than needed for test purposes
Memory Voltage: 2.45v
FSB Termination Voltage: 1.3v
SB Vcore (SATA/PCIE): AUTO
ICH Chipset Voltage: AUTO

Memory Remap Feature: Disabled
Configure DRAM Timing by SPD: Disabled
DDRAM CAS# Latency: 4
DRAM RAS# to CAS# Delay: 4
DRAM RAS# Precharge: 4
DRAM RAS# Activate to Precharge: 12
DRAM Write Recovery Time: 6
DRAM TRFC: 42
DRAM TRRD: 10
Rank Write to Read Delay: 10
Read to Precharge Delay: 10
Write to Precharge Delay: 10
Static Read Control: Disabled

Modify Ratio Support: Enabled
Ratio CMOS Setting: 9x
CIE Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM function: Disabled
Execute Disable Bit: Disabled
PECI: Disabled

NB Vcore: 1.55v + Memory Voltage: 2.45v
With 1.55v NB managed to gain 4-5mhz and jump from 551mhz to 555-556mhz 4-4-4-12 at 2.45v

NB Vcore: 1.65v + Memory Voltage: 2.45v
With 1.65v NB managed to jump to 561mhz 4-4-4-12 at 2.45v for Stressprime Orthos Large FFTs but it failed after 4+ minutes of running. But single and dual 32M were fine @561mhz 4-4-4-12 at 2.45v

[eva2000]

Max Super Pi 1M @5-4-4-12 at 2.45v
Loosened CAS timing from 4-4-4-12 to 5-4-4-12 at 2.45v with 1.65v NB voltage and managed to break DDR2-1200Mhz barrier

PCI Express Frequency: 100
PCI Clock Synchronization Mode: 33.33Mhz
Spread Spectrum: Disabled
CPU Vcore Voltage: 1.5 (1.448) - set higher than needed for test purposes
Memory Voltage: 2.45v
FSB Termination Voltage: 1.3v
NB Vcore: 1.65v
SB Vcore (SATA/PCIE): AUTO
ICH Chipset Voltage: AUTO

Memory Remap Feature: Disabled
Configure DRAM Timing by SPD: Disabled
DDRAM CAS# Latency: 5
DRAM RAS# to CAS# Delay: 4
DRAM RAS# Precharge: 4
DRAM RAS# Activate to Precharge: 12
DRAM Write Recovery Time: 6
DRAM TRFC: 42
DRAM TRRD: 10
Rank Write to Read Delay: 10
Read to Precharge Delay: 10
Write to Precharge Delay: 10
Static Read Control: Disabled

Modify Ratio Support: Enabled
Ratio CMOS Setting: 9x
CIE Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM function: Disabled
Execute Disable Bit: Disabled
PECI: Disabled

@600Mhz 5-4-4-12 at 2.45v





@605Mhz 5-4-4-12 at 2.45v

[eva2000]

Async Memory Overclocking 4:5

Now to test out 4:5 cpu/memory divider on Asus P5B Deluxe. As I have read, 4:5 divider on Asus P5B Deluxe is alot harder to use and will not overclock memory as high as the max achievable on 2:3 divider. Seems part of the key is NB/vMCH voltage which needs to be raised for stability on 4:5 divider. At 400FSB 4:5 500Mhz memory from bios, I still needed to raise NB volts from 1.45v to 1.55v in order to eliminate 1000s of errors in memtest86+ v1.65's Test #4.

• Raising NB volts to 1.55v allowed me to hit 420FSB 4:5 525mhz 4-4-4-12 at 2.45v vdimm.
• Raising NB volts from 1.55v to 1.65v allowed me to hit 432FSB 4:5 540mhz 4-4-4-12 at 2.45v vdimm straight boot from bios.

Then I tried booting from bios at 400FSB 4:5 500mhz 4-4-4-12 at 2.45v and using clockgen to raise FSB from 400FSB to 432FSB, but at around 421FSB I got BSOD from within windows while doing Systool dual 32M Pi test. I rebooted and tried again with exact same BSOD.

So I decided to change memory timings from 4-4-4-12 to 5-4-4-12 and boot into windows at 400FSB 4:5 500mhz 5-4-4-12 at 2.45v and managed to clockgen up to only 426FSB 4:5 533mhz 5-4-4-12 at 2.45v.

The end result is 4:5 divider tests results with two configurations:

1. Config #1 = Straight bios set boot at 9x432FSB = 3888Mhz with 4:5 memory at 540mhz 4-4-4-12 at 2.45v
2. Config #2 = Boot from bios set at 9x400FSB = 3600Mhz with 4:5 memory at 500mhz 5-4-4-12 at 2.45v which clockgen to 9x426FSB = 3839Mhz with 4:5 memory at 533mhz 5-4-4-12 at 2.45v. Taking advantage of the faster NB strap at =<400FSB.

Config #1
PCI Express Frequency: 100
PCI Clock Synchronization Mode: 33.33Mhz
Spread Spectrum: Disabled
Memory Voltage: 2.45v
CPU Vcore Voltage: 1.625 (1.552)
FSB Termination Voltage: 1.3v
NB Vcore: 1.65v
SB Vcore (SATA/PCIE): AUTO
ICH Chipset Voltage: AUTO

Memory Remap Feature: Disabled
Configure DRAM Timing by SPD: Disabled
DDRAM CAS# Latency: 4
DRAM RAS# to CAS# Delay: 4
DRAM RAS# Precharge: 4
DRAM RAS# Activate to Precharge: 12
DRAM Write Recovery Time: 6
DRAM TRFC: 42
DRAM TRRD: 10
Rank Write to Read Delay: 10
Read to Precharge Delay: 10
Write to Precharge Delay: 10
Static Read Control: Disabled

Modify Ratio Support: Enabled
Ratio CMOS Setting: 9x
CIE Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM function: Disabled
Execute Disable Bit: Disabled
PECI: Disabled

Config #2
PCI Express Frequency: 100
PCI Clock Synchronization Mode: 33.33Mhz
Spread Spectrum: Disabled
Memory Voltage: 2.45v
CPU Vcore Voltage: 1.625 (1.552)
FSB Termination Voltage: 1.3v
NB Vcore: 1.65v
SB Vcore (SATA/PCIE): AUTO
ICH Chipset Voltage: AUTO

Memory Remap Feature: Disabled
Configure DRAM Timing by SPD: Disabled
DDRAM CAS# Latency: 5
DRAM RAS# to CAS# Delay: 4
DRAM RAS# Precharge: 4
DRAM RAS# Activate to Precharge: 12
DRAM Write Recovery Time: 6
DRAM TRFC: 42
DRAM TRRD: 10
Rank Write to Read Delay: 10
Read to Precharge Delay: 10
Write to Precharge Delay: 10
Static Read Control: Disabled

Modify Ratio Support: Enabled
Ratio CMOS Setting: 9x
CIE Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM function: Disabled
Execute Disable Bit: Disabled
PECI: Disabled

Results:

• Super Pi single and dual 32M was 27 seconds and ~1min faster respectively with clockgen raised 9x426FSB 4:5 533mhz 5-4-4-12 configuration. And seems the trend continues with other bandwidth intensive/specific benchmarks.
• Everest latency was 65.5ns vs 45.5ns
• Mbench Access latency was 58.9ns vs 49.2ns
• Sandra XI Random Access Latency was 66ns vs 60ns

==================================================
Super Pi single 32M
3888Mhz - 9x432FSB
4:5
540mhz 4-4-4-12 at 2.45v


Super Pi single 32M
3839Mhz - 9x426FSB
4:5
533mhz 5-4-4-12 at 2.45v
(clockgen from 400FSB)


==================================================
Super Pi dual 32M
3888Mhz - 9x432FSB
4:5
540mhz 4-4-4-12 at 2.45v


Super Pi dual 32M
3839Mhz - 9x426FSB
4:5
533mhz 5-4-4-12 at 2.45v
(clockgen from 400FSB)


==================================================
Everest Ultimate v3.50 Bandwidth
3888Mhz - 9x432FSB
4:5
540mhz 4-4-4-12 at 2.45v


Everest Ultimate v3.50 Bandwidth
3839Mhz - 9x426FSB
4:5
533mhz 5-4-4-12 at 2.45v
(clockgen from 400FSB)


==================================================
MBench v1.0
3888Mhz - 9x432FSB
4:5
540mhz 4-4-4-12 at 2.45v

---- MBench (C) ver 1.0 (Feb 2002) ----
---- System memory benchmark ----
---- www.x86-secret.com ----

Intel P6 processor (CPUID = 6f5) @ 3888.1MHz
Instruction set support : MMX SSE SSE2 

Access latency			 58.9 ns (229 clocks)

Read datarate (INT)		7274 Mb/s
Write datarate (INT)		2986 Mb/s

Read datarate (MMX)		7898 Mb/s
Write datarate (MMX)		2935 Mb/s

Read datarate (SSE)		8181 Mb/s
Write datarate (SSE)		7877 Mb/s

MBench v1.0
3839Mhz - 9x426FSB
4:5
533mhz 5-4-4-12 at 2.45v
(clockgen from 400FSB)

---- MBench (C) ver 1.0 (Feb 2002) ----
---- System memory benchmark ----
---- www.x86-secret.com ----

Intel P6 processor (CPUID = 6f5) @ 3600.0MHz
Instruction set support : MMX SSE SSE2 

Access latency			 49.2 ns (177 clocks)

Read datarate (INT)		7544 Mb/s
Write datarate (INT)		3428 Mb/s

Read datarate (MMX)		8071 Mb/s
Write datarate (MMX)		3436 Mb/s

Read datarate (SSE)		8430 Mb/s
Write datarate (SSE)		7247 Mb/s

==================================================
Sandra XI Random Access Latency
3888Mhz - 9x432FSB
4:5
540mhz 4-4-4-12 at 2.45v


Sandra XI Random Access Latency
3839Mhz - 9x426FSB
4:5
533mhz 5-4-4-12 at 2.45v
(clockgen from 400FSB)