Core i7 920 rev D0 stepping 5 :)

[jcniest5]

Here's my newbie SuperPI's result...nothing spectacular. This @21x200.

[roller11]

Nice result, jcn. No doubt you'll be up with the rest of us in no time.

[Sniper]

W3520 3848A352

GB UD5 F7C, TRUE + 1x120mm Pabst 38db, 23-24C romtemp:

[Renegade5399]

Damn good batch ain't it Sniper?

[jcniest5]

Nice result, jcn. No doubt you'll be up with the rest of us in no time.

That is still way too far for me. Some how my D0 would not go past 210 bclk without having stability issue. It may just be something I'm not doing correctly.

[Sniper]

Yes, very happy with my two 3848A352

[road-runner]

The fact that you can do a prime run at 235.5x21 tells me you have a lot of headroom, especially with better RAM. As I recall, you have a 3845B027, right? Do you find it's vcore setting tops out relatively low? Also, is your val screen with DICE, water, something else?

No its the 3848A352, I started out on water to get used to the motherboard and all and see how far I could push it, then I put it on the OCZ Cryo Z single stage. Next will be LN2 or DICE, I am having to give it 1.425 volts to make it through the cpu test in 06 @ 4.9Ghz.

The phase change only holds it at about -2 - -0c under load. I am having trouble getting 237, I can get 236 but not 237. I am going to have to tweak on it a little more and see if I can get passed 236.

I did manage 33183 in 06 and 42841 in 05 today, I cant figure out how to upload the saved results but I do have a SS. I need to get my water cooling back on the 4870x2s...

[jcniest5]

I don't understand why using two kits of tri-channel memory, my Corsair is able to boot and run just fine at 9-9-9-24 2N while my OCZ Platinum just simply cannot do it. It can't boot. Both are DDR3-1600Mhz speed with the OCZ's timing of 7-7-7-24 (1.65V) and Corsair's timing of 9-9-9-24 (1.65V). On both kits, I can POST and run fine at 21x200. As soon as I up the bclk to 205, the OCZ can POST, but can't load the OS. The Corsair can that just fine. I've tried (on the OCZ) both manual timing and auto timing, no luck, the PC crashes every single time. The Corsair works just fine.

[road-runner]

Getting up there a little higher...

[lee63]

I don't understand why using two kits of tri-channel memory, my Corsair is able to boot and run just fine at 9-9-9-24 2N while my OCZ Platinum just simply cannot do it. It can't boot. Both are DDR3-1600Mhz speed with the OCZ's timing of 7-7-7-24 (1.65V) and Corsair's timing of 9-9-9-24 (1.65V). On both kits, I can POST and run fine at 21x200. As soon as I up the bclk to 205, the OCZ can POST, but can't load the OS. The Corsair can that just fine. I've tried (on the OCZ) both manual timing and auto timing, no luck, the PC crashes every single time. The Corsair works just fine.

Could you post your voltages...I have the same batch as you, looks pretty good so far.

[roller11]

Getting up there a little higher...

Whoaa!!! Damn you RR, you're making me look bad!!
Seriously RR, a 5111 puts you well up on the all time list, nice job! What is the secret sauce that caused such a jump over your previous attempts?

[road-runner]

Whoaa!!! Damn you RR, you're making me look bad!!
Seriously RR, a 5111 puts you well up on the all time list, nice job! What is the secret sauce that caused such a jump over your previous attempts?

More PCIE frequency, 112 is about the max I can go, 113 and windows starts acting crazy...

[ShoNuff]

More PCIE frequency, 112 is about the max I can go, 113 and windows starts acting crazy...

Really! I would have never thought to push the PCI-E frequency for stability. Nice job though!!!

What were your max clocks with H20 cooling?

[road-runner]

Really! I would have never thought to push the PCI-E frequency for stability. Nice job though!!!

What were your max clocks with H20 cooling?

About 4655mhz but I took it off water cooling before I ever tried changing the PCIE frequency past about 102/103 so I am sure I could have got a lot more out of it than that...

[roller11]

More PCIE frequency, 112 is about the max I can go, 113 and windows starts acting crazy...

Are you saying that all you did was increase your PCIE frequency to jump up
seven Bclocks, nothing else? What PCIE were you doing before the big increase, 105? 108?

[jcniest5]

Could you post your voltages...I have the same batch as you, looks pretty good so far.

Okay...here it is:

Base Clock (bclk): 205
Adjust CPU Ratio: 21

CPU Voltage: +.20 (=1.32v)
QPI Voltage: 1.35v
DRAM Voltage: 1.65v

IOH Voltage: 1.253v

[roller11]

. As soon as I up the bclk to 205, the OCZ can POST, but can't load the OS. The Corsair can that just fine. I've tried (on the OCZ) both manual timing and auto timing, no luck, the PC crashes every single time. The Corsair works just fine.

What are your mem frequency/uncore/QPI multiplier?

[angelreaper]

My Xeon W3520 3844A704

[ben805]

I don't understand why using two kits of tri-channel memory, my Corsair is able to boot and run just fine at 9-9-9-24 2N while my OCZ Platinum just simply cannot do it. It can't boot. Both are DDR3-1600Mhz speed with the OCZ's timing of 7-7-7-24 (1.65V) and Corsair's timing of 9-9-9-24 (1.65V). On both kits, I can POST and run fine at 21x200. As soon as I up the bclk to 205, the OCZ can POST, but can't load the OS. The Corsair can that just fine. I've tried (on the OCZ) both manual timing and auto timing, no luck, the PC crashes every single time. The Corsair works just fine.

bump up your vdimm to 1.66 and up the vtt as well.

[road-runner]

Are you saying that all you did was increase your PCIE frequency to jump up
seven Bclocks, nothing else? What PCIE were you doing before the big increase, 105? 108?

To get past the 237 wall I was hitting yes increased the vcore some and pcie from the 105 I was on to 112...

[Le Titi]

Xeon 3520 Batch : 3844A704 Pack Date : 03/24/09

Hello

Can you tell me if it's a good produc for OC ?

Tanks

[Sparda]

Xeon 3520 Batch : 3844A704 Pack Date : 03/24/09

Hello

Can you tell me if it's a good produc for OC ?

Tanks

Generally not , many do 4.0GHz HT on more than 1.2v. But angelreaper got a nice one. But they do run a bit cooler

[jcniest5]

What are your mem frequency/uncore/QPI multiplier?

Mem freq is 1640
Uncore is at Auto (same as 8), result in a 3280

The Corsair works just fine using this setting, but the OCZ craps out each time even though it has the better timing than the Corsair. Time for RMA?

BTW, what does Uncore freq do anyway?

On the 222+ blck, I can run stable at 16x225 (3.6Ghz) but any higher than that the PC craps out. Vcore is all the way up to 1.35v something. Is this D0 a bad overclocker or is it just something I'm not doing correctly here?

[ShoNuff]

Okay...here it is:

Base Clock (bclk): 205
Adjust CPU Ratio: 21

CPU Voltage: +.20 (=1.32v)
QPI Voltage: 1.35v
DRAM Voltage: 1.65v

IOH Voltage: 1.253v

IIRC you are using a MSI board correct? Are you running a multi video card setup? I would bump the IOH Voltage up to 1.35v to see if that adds any stability. On both my EX58 and Classified board I need around 1.3v-1.35v for any Bclock above 210. The suggestion to bump up the vDimm and VTT sound good to me as well.

[angelreaper]

Xeon 3520 Batch : 3844A704 Pack Date : 03/24/09

Hello

Can you tell me if it's a good produc for OC ?

Tanks

Not exactly. Very hot here But keep clock 4400 to air:
http://valid.canardpc.com/show_oc.php?id=566454