WCG-TPU Cruncher's Hardware/Tech Support Discussion Thread

[4x4n]

Not going to do this right away, but likely before the end of the year, so if any of you have a another source for ES Xeons let me know.

As for the ebay seller, they have 100% postive feedback and it looks like the have sold quite a few cpu's, but I was hoping someone has some experience with them.

 

[4x4n]

Couple more questions for you ES experts.

How much difference is there between steppings? Here are two I've found, one is Rev 1, the other is Rev 2. The cpuz shots show cpu multi, the Rev 1 chip is 12-23, Rev 2 is 12-25. Does that mean that first stepping only boosts to 2300? Also, how about overclocking with these, anyone have good success with overclocking? Thanks again guys.


Rev 1 chip: http://www.ebay.com/itm/Intel-Xeon-...74d7169&pid=100338&rk=1&rkt=7&sd=161885641118

Rev 2 chip: http://www.ebay.com/itm/INTEL-XEON-...a4de880&pid=100005&rk=5&rkt=6&sd=262145552710

 

[stevorob]

To anyone running 1366 - Is it advantageous to run triple channel memory over single channel for crunching? If so, what kind of performance increase is there?

 

[Norton]

To anyone running 1366 - Is it advantageous to run triple channel memory over single channel for crunching? If so, what kind of performance increase is there?

No real life benefits imho... NOT recommended in that board you got from me btw.

 

[stevorob]

No real life benefits imho... NOT recommended in that board you got from me btw.

Got it.

 

[stinger608]

No real life benefits imho... NOT recommended in that board you got from me btw.

Actually @Norton , I have that exact motherboard as your aware of, and I have been running triple channel Corsair Dominator ram. Seems to work great in the board.

 

[Norton]

I have that exact motherboard as your aware of

Same model not the same board... one that a cpu went BOOM in ... I would proceed cautiously with the board that I had.

 

[stinger608]

Same model not the same board... one that a cpu went BOOM in ... I would proceed cautiously with the board that I had.

Okay, technicality.

Yes, same model for sure. And true, I haven't had a cpu fry in the board...........Well, yet.

But, I did install a hex core Xeon chip in the board and it wouldn't boot up? So I ended up just staying with a quad core Xeon.

 

[stevorob]

Same model not the same board... one that a cpu went BOOM in ... I would proceed cautiously with the board that I had.

Hopefully it doesn't do it again

But, I did install a hex core Xeon chip in the board and it wouldn't boot up? So I ended up just staying with a quad core Xeon.

I did a little research and it appears that only some of the revision 1.1 boards got the mod that allows hex core Xeon support - Rev 1.0 boards do not have this. At one point, you could send your board into eVGA and they would perform the mod (at the expense of shipping I think). There's some DIY instructions floating around out there... involves shorting some resistors or something.

 

[stinger608]

I did a little research and it appears that only some of the revision 1.1 boards got the mod that allows hex core Xeon support - Rev 1.0 boards do not have this. At one point, you could send your board into eVGA and they would perform the mod (at the expense of shipping I think). There's some DIY instructions floating around out there... involves shorting some resistors or something.

Hmm, I happen to have a trace pen. Might have to do some research on that one. I imagine the dang board I have is a rev 1.0. Will have to check though.

 

[t_ski]

Hmm, I happen to have a trace pen. Might have to do some research on that one. I imagine the dang board I have is a rev 1.0. Will have to check though.

Is this what you're looking for?

http://forums.evga.com/E758-3x-SLi-Westmere-Mod-m2068568.aspx

 

[manofthem]

Is this what you're looking for?

http://forums.evga.com/E758-3x-SLi-Westmere-Mod-m2068568.aspx

Haha, I clicked the link and saw the avatar at the top and thought, "Hmm, that looks like stinger's old avatar..."

 

[stinger608]

Is this what you're looking for?

http://forums.evga.com/E758-3x-SLi-Westmere-Mod-m2068568.aspx

Oh for gods sake!!! Man, that is funny shit right there.

I totally spaced even making that thread LOLOLOLOL
Good one T.

 

[ThE_MaD_ShOt]

Glad I don't have to do all the mods on my EVGA x58 board to run a hex. Mine is the x58 sli3.

 

[xvi]

Anyone have any experience overclocking/undervolting a i7 6700k? Need to reduce temps (it's throttling), but would also like to keep/boost speed. Currently at 4.3Ghz, -0.125v offset, but it's not completely stable under constant load.

 

[thebluebumblebee]

Anyone have any experience overclocking/undervolting a i7 6700k? Need to reduce temps (it's throttling), but would also like to keep/boost speed. Currently at 4.3Ghz, -0.125v offset, but it's not completely stable under constant load.

Please tell me that's under Linux. I want to see PPD numbers with OET. I've gotten as high as 16K with my 4.4 2600K!
What cooling are you using?

 

[xvi]

Please tell me that's under Linux. I want to see PPD numbers with OET. I've gotten as high as 16K with my 4.4 2600K!

Windows 10, sorry. I've got a second drive coming for this thing, so I can see about dual booting. Could also see about running a VM (should run near full speed, right?)

What cooling are you using?

That's the catch. Stock cooling (with IC Diamond) is pretty much the only option because..

Spoiler

It's a laptop.
(Image shamelessly pulled from YouTube)

 

[CAPSLOCKSTUCK]

To anyone running 1366 - Is it advantageous to run triple channel memory over single channel for crunching? If so, what kind of performance increase is there?

i dont know if there is any relevance but i ran cinebench R 15 when i was going for the record in single/dual and triple channel and there was negligible difference, wasnt even worth rerunning to rule out errors.

 

[[Ion]]

Please tell me that's under Linux. I want to see PPD numbers with OET. I've gotten as high as 16K with my 4.4 2600K!
What cooling are you using?

PPD with OET is crazy. It varies by up to 80% week-over week depending on the exact batch of WUs that we get. Usually I'm getting around 8k PPD from the FX8350 but I've also seen it do 15k sometimes too. Crazy stuff going on with it. Definitely more variance than what most other projects are doing. I'd imagine that the 6700k will do somewhere around 10 or 11k running OET under Linux.

 

[mstenholm]

PPD with OET is crazy. It varies by up to 80% week-over week depending on the exact batch of WUs that we get. Usually I'm getting around 8k PPD from the FX8350 but I've also seen it do 15k sometimes too. Crazy stuff going on with it. Definitely more variance than what most other projects are doing. I'd imagine that the 6700k will do somewhere around 10 or 11k running OET under Linux.

I gave up on OET, even Linux i5 2520M and my 4.4 Ghz 4790 are worse then my old E8400 running MCM. There have been some happy days but mostly it's crap points.

 

[[Ion]]

I gave up on OET, even Linux i5 2520M and my 4.4 Ghz 4790 are worse then my old E8400 running MCM. There have been some happy days but mostly it's crap points.

Depends on OS. OET on Windows is really bad. OET on Linux is usually pretty good and often spectacular.

 

[xvi]

Alright, this is starting to bug me. Dell PowerEdge R710, Windows Server 2012 box, two Xeon E5520s, Oracle VirtualBox with one Linux VM. Linux VM is running BOINC.

When I assign 8 cores to the VM, Windows shows 8 cores being used at 100% and the CPU clocks up to it's normal clock speed.

When I assign 16 cores to the VM, VirtualBox gives me a warning about assigning more virtual cores than I have physical cores. Continue anyways, fire up the VM, get about 50% average utilization on all cores. Windows also does not ramp up the processor clock speed.
OpenHardwareMonitor confirms that only one processor is loaded and the other is idle.

Edit: Stressing with CPU-z's benchmark, I'm seeing some kind of throttling. Ugh. Doesn't quite explain BOINC's weird behavior though.

Edit 2: Opened the case to trip chassis intrusion so that fans would kick up to full speed. Clock speeds increase slightly.

Great server design, Dell.


Edit 3: I broke something. It won't clock up at all now.

 

[stinger608]

Okay, fairly new to Ubuntu and wondering how you get from basic to advanced view in BOINC?

 

[xvi]

Okay, fairly new to Ubuntu and wondering how you get from basic to advanced view in BOINC?

Should be the same as Windows.

 

[stinger608]

Damn @xvi I'm not seeing that at all man? I don't seem to have the tool bar showing "file view tools help" above the window.