Buck's 4P F@H Build(s)

[[Ion]]

Parts are on their way for the 2nd 4P build. Using all the same part/pieces except the CPU's are Opteron 6176 SE's. I will try for a 20%+ O/C on these chips and will need additional cooling for the VRMs. Will also try to increase the voltage on these chips as well. Aiming for 2.7-2.8Ghz and 1600mhz on the Ram as well. I may eventually upgrade to 1Kw PSU's that are modular for a cleaner appearance.

How much lower will this system be clocked? And how much of an impact do you expect it to have on PPD? And how much RAM do you have in these things?

 

[BUCK NASTY]

How much lower will this system be clocked? And how much of an impact do you expect it to have on PPD? And how much RAM do you have in these things?

Each CPU has 8Gb ram for a total of 32gb. Total Gb of memory is not as important as filling every ram slot so the CPU has max memory bandwidth. This is why I chose the 2gb Dimms as opposed to the 4gb.

The current rig is running @ 2.825ghz and has a 13% O/C(2.5 ghz stock). The new rig will have a 20%+ O/C and run @ 2.76Ghz(2.3ghz stock). Because of the 7% higher base clock, the production of the rigs should be close. It will be interesting to see how this turns out.

 

[[Ion]]

Each CPU has 8Gb ram for a total of 32gb. Total Gb of memory is not as important as filling every ram slot so the CPU has max memory bandwidth. This is why I chose the 2gb Dimms as opposed to the 4gb.

The current rig is running @ 2.825ghz and has a 13% O/C(2.5 ghz stock). The new rig will have a 20%+ O/C and run @ 2.76Ghz(2.3ghz stock). Because of the 7% higher base clock, the production of the rigs should be close. It will be interesting to see how this turns out.

Ahh, I was wondering why there were so many DIMMs. That makes a lot of sense though.
850k PPD is absolutely amazing...the future is bright!

 

[BUCK NASTY]

4P rig #2 update

Everything has shipped and the last item to arrive will be the Mobo via UPS on Monday the 22nd. I will have everything prepped and ready to go. Should start dumping work 1 week from today.

 

[[Ion]]

Everything has shipped and the last item to arrive will be the Mobo via UPS on Monday the 22nd. I will have everything prepped and ready to go. Should start dumping work 1 week from today.

Depending on how things are aligned, it should be amazing the days that both systems dump two WUs

What are you thinking about rig #3?

 

[BUCK NASTY]

Depending on how things are aligned, it should be amazing the days that both systems dump two WUs

What are you thinking about rig #3?

Rig 3 may be a X-mas present to myself if the electric usage is not too bad with 2x 4P rigs. I'll let you know in a month.

 

[[Ion]]

Rig 3 may be a X-mas present to myself if the electric usage is not too bad with 2x 4P rigs. I'll let you know in a month.

That's quite the XMas present!
Presumably power usage should be lower than all of those GPUs, right?

 

[BUCK NASTY]

Got all 4 cpu's today, but there is an issue. The guy I lowballed on ebay had the last laugh. One of the 6176's had some damage to the corner of the chip on the 2 ends. Chip cleaned up nice, but I will have to wait until Monday to test it and see if it still works. Not worried about cosmetics as long as it is functional.

 

[[Ion]]

At least all of the contact pads look OK--I really hope that the chip works fine. If not, do you have any course of action?

 

[BUCK NASTY]

At least all of the contact pads look OK--I really hope that the chip works fine. If not, do you have any course of action?

I think it will work as well(I hope he tested everything he sells). I have 2 weeks to return for full refund and I purchased through Bill Me Later/Paypal, so I have recourse if needed. Funny, bought 2 sets of chips from 2 different sellers. One comes in bubblewrap in a small USPS box(damaged one) and the other set comes in the OEM tray with all kinds of packaging with shrink wrapping around it. I thought it was a Mobo for a minute and took 2-3 minutes to cut through the packaging. It was impressive. Keeping fingers crossed.

 

[Solaris17]

that looks like it flexed. if something is wrong the traces are probably fubar.

 

[BUCK NASTY]

that looks like it flexed. if something is wrong the traces are probably fubar.

The crack does not run all the way through the PCB. The issue might be not enough contact pressure against the pads and socket pins.

 

[Aquinus]

Even if it does work, the question is will it last and if it is broken but doesn't prevent it from working but what if those contacts up there go to? Maybe a PCI-E slot or a DRAM channel? I hope for the best but worse comes to worse you have things to fall back on. Nothing like having your ducks in a row.

Also, you might want to check the bracket on the motherboard, if that is in the wrong place I could see tension from the socket on the mobo making it worse once you lock it into place. That is only speculation though.

 

[BUCK NASTY]

Also, you might want to check the bracket on the motherboard, if that is in the wrong place I could see tension from the socket on the mobo making it worse once you lock it into place. That is only speculation though.

Yeah, I was thinking the same thing. When the mobo arrives, I will look at the pressure points on the cpu. Hopefully there is no limitations in functionality, as i got it for a great price and I can afford to make some aesthetic concessions.

 

[BUCK NASTY]

Coolers and Ram are here. Gonna have fun building the brackets for the Coolers. Gotta shut down the 1st rig so I can copy the drive in preparation for the mobo arriving monday. It will be a busy, but productive weekend. If all goes well, Tuesday/Wednesday should be the 1st 800K+ PPD day. Gonna run the rig @ stock clocks to get a baseline, then I'll void the warranty and flash the bios for the overclock.

 

[[Ion]]

Coolers and Ram are here. Gonna have fun building the brackets for the Coolers. Gotta shut down the 1st rig so I can copy the drive in preparation for the mobo arriving monday. It will be a busy, but productive weekend. If all goes well, Tuesday/Wednesday should be the 1st 800K+ PPD day. Gonna run the rig @ stock clocks to get a baseline, then I'll void the warranty and flash the bios for the overclock.

How do you build the cooler brackets? And how long do you have to shutdown rig #1 for?

Pictures of this new exciting hardware?

 

[BUCK NASTY]

Pictures of this new exciting hardware?

A pic of rig#2 minus the mobo.

 

[Steevo]

I must admit, I came.


Now that winter is setting in and a few new systems are being built I will have to put some of my fold back to folding.

 

[[Ion]]

What sort of PSU(s) are you running this with? Two of the 750s again?

 

[BUCK NASTY]

What sort of PSU(s) are you running this with? Two of the 750s again?

I am actually running rig#1 on a single PC Power & Cooling Silencer 750 Mk1(pre OCZ). Actually built by Seasonic. Currently pulling 890W from the wall which equates to 715W draw from the Mobo on a P8101. Temps are withing specs and I have a 12" fan blowing on the PSU. Been running it like this for 1-1/2 weeks and I'm confident it can handle it. Not bad for a $40.00 refurbished PSU, right?

Room temp is 25C and Exhaust temp from the PSU is 38C.

 

[[Ion]]

I am actually running rig#1 on a single PC Power & Cooling Silencer 750 Mk1(pre OCZ). Actually built by Seasonic. Currently pulling 890W from the wall which equates to 715W draw from the Mobo on a P8101. Temps are withing specs and I have a 12" fan blowing on the PSU. Been running it like this for 1-1/2 weeks and I'm confident it can handle it. Not bad for a $40.00 refurbished PSU, right?

Room temp is 25C and Exhaust temp from the PSU is 38C.

http://img.techpowerup.org/121020/Capture028.jpg

Wow...nearly a 100% load on that PSU!

IMO PCP&C was better pre-OCZ...

Are you going to use the 2nd PCP&C for the 2nd 4P rig?

 

[BUCK NASTY]

Wow...nearly a 100% load on that PSU!

IMO PCP&C was better pre-OCZ...

Are you going to use the 2nd PCP&C for the 2nd 4P rig?

Yep, gonna run the 2nd rig on the matching PSU. Matter of fact, I bought both of them refurbished. Although rated at 75Ow, they have an additional 15% headroom. If I was max'ing them out, the PSU fan speed would tell me.

 

[[Ion]]

Yep, gonna run the 2nd rig on the matching PSU. Matter of fact, I bought both of them refurbished.

That's nearly as good of a deal as the half-dozen Antec 650w PSUs I got for $10 each

 

[BUCK NASTY]

That's nearly as good of a deal as the half-dozen Antec 650w PSUs I got for $10 each

EA-650's?

 

[[Ion]]

EA-650's?

About half EA-650s, about half TruePower New 650s (650w, semi-modular, 80+ bronze)