P4C800-E >260mhz 2-2-2-6

[eva2000]

I'm having loads of fun with this OCZ DDR Booster on my Asus P4C800-E rev2.0 with 1016 bios. But I've seem to have hit a ceiling now and can't get over 260mhz 2-2-2-6 1:1.

System:
2.8C SL6Z5 with Corsair Hydrocool does max 275-283fsb
Asus P4C800-E rev2.0 1016 bios stock NB heatsink with stock TIM
256MB Gecube X800Pro @ stock
80GB WD 800JB
550W Antec TrueControl
WinXP Pro SP1

2 pairs of Winbond BH-5 tested.

1. 2x 256MB Kingston HyperX PC3200 KHX3200K2/512 BH-5
2. 2x 256MB Corsair XMS3500C2v1.1 BH-5

----------------------------------------------------------------------------
vAGP = 1.6v unless otherwise stated below
PAM = AUTO
DDR Idle Timer = AUTO
DDR Refresh Rate = AUTO
PM = Standard
Spread spectrum = Disabled
AGP Aperture = 64MB
AGP/PCI = 66.66/33.33
USB Legacy = Disabled

1. 2x 256MB Kingston HyperX PC3200 KHX3200K2/512 BH-5
- did 240-245mhz 2-2-2-6 at 3.18v on AI7
- on P4C800-E with OCZ DDR Booster:
245mhz 2-2-2-6 at 3.0v
250mhz 2-2-2-6 at 3.2v
255mhz 2-2-2-6 at 3.3v
257mhz 2-2-2-6 at 3.4v

single channel 1x 256MB KHX3200K2/512 BH-5 stick does:

255mhz 2-2-2-6 at 3.1v
260mhz 2-2-2-6 at 3.3v
265mhz 2-2-2-6 at 3.4v
270mhz 2-2-2-6 at 3.5v


2. 2x 256MB Corsair XMS3500C2v1.1 BH-5
- did 245-252mhz 2-2-2-6 at 3.18v on AI7
- on P4C800-E with OCZ DDR Booster:
240mhz 2-2-2-6 at 2.9v
245mhz 2-2-2-6 at 3.0v
250mhz 2-2-2-6 at 3.1v
255mhz 2-2-2-6 at 3.2v
257mhz 2-2-2-6 at 3.3v
259mhz 2-2-2-6 at 3.4v with 1.7v vAGP ok - with 1.6v vAGP same freeze in memtest

But either pair in dual channel at 260mhz 2-2-2-6 with 3.4-3.6v vdimm and 1.6-1.8 vAGP will freeze in memtest86 in 1st or 2nd pass of Test #5 loop.

Sooooo, could it be I need better NB heatsink cooling ? Or some other tweaks ? Or just the limitation of my particular sticks of BH-5 ? Or limitation of the memory controller in dual channel mode ?

Any help is appreciated

 

[Spec3]

Extra NB cooling on mine didn't really help me out much and all. I made it to 292Mhz 1:1 with just the stock cooler and no fan. Maybe you should try the Vagp mod to get something like 2V or something.

Steve

 

[eva2000]

2.8C @ 259fsb
1:1
2x 256MB XMS3500C2v1.1 BH-5 @259mhz 2-2-2-6 at 3.4v

vAGP = 1.7v
PM = Standard
PAM = Auto
DDR Idle Timer = Infinite
DDR Refresh Rate = 64uSec
Spread spectrum = Disabled
AGP Aperture = 64MB
AGP/PCI = 66.66/33.33
USB Legacy = Disabled

Buffered = 6407 / 6401
Unbuffered = 3639 / 3710

see this is what everest home reports for chipset real clock = 86mhz

 

[eva2000]

okay I did a few changes swapped Gecube X800Pro out for Albatron MX480EL card and put 80GB WD 800JB Hdd on Promise 32bit/66mhz controller instead of board's primary IDE channel and can manage to scrape in a few benchies @ 265mhz 2-2-2-6 at 3.6v

2.8C @ 265fsb
Asus P4C800-E rev2.0 1016 bios
Albatron MX480EL @ stock 275/266
80GB WD 800JB on Promise ATA133 32bit/66mhz controller
550W Antec TrueControl PSU

1:1
2x 256MB XMS3500C2v1.1 BH-5 @265mhz 2-2-2-6 at 3.6v

vAGP = 1.7v for clockgen benched superpi/aida32 and 1.8v for sandra bandwidth benchies
PM = Standard
PAM = Auto
DDR Idle Timer = Infinite
DDR Refresh Rate = 64uSec
Spread spectrum = Disabled
AGP Aperture = 64MB
AGP/PCI = 66.66/33.33
USB Legacy = Disabled

Sandra 2004 STD SP2
Buffered = 6555 / 6550
Unbuffered = 3782 / 3793

Aida32 v3.93
Read = 6468 MB/s
Write = 2026 MB/s
Ram SPD settings

SuperPi
1M = 36s
2M = 1min 25s

notes:
- this ain't 100% stable but working on it
- vAGP of 1.6 was fine if i booted into windows at 233fsb and used clockgen to reach 265mhz 2-2-2-6 and managed run off aida and superpi benchies but trying to boot into windows at 265mhz 2-2-2-6 froze at winxp welcome screen
- vAGP of 1.7v allowed me to boot into windows at 265mhz 2-2-2-6 but mouse and keyboard didn't respond
- vAGP of 1.8v allowed my mouse and keyboard to work fine and run sandra buff/unbuffered benchmarks