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Topic: Mining rig extraordinaire - the Trenton BPX6806 18-slot PCIe backplane [PICS] - page 22. (Read 169362 times)

full member
Activity: 196
Merit: 100
Web Dev, Db Admin, Computer Technician
Cool. I also found this.

Xeon LV 2.8
SL8RW (G0)
2800 MHz
1024 KiB
800 MT/s
14x
1.1125-1.2 V
55 W
Socket 604
October 2004
RK80546KG0721M

There are no single core socket 604 cpu's that support VT-x.  Cry
VT-x isn't available until "Dempsey" Xeon 5020, 5030 for socket 771.

Edit: There are some dual core 604 sockets, Xeon 7020 that support VT-x. 165w
http://www.compuvest.com/Desc.jsp?iid=1124397  $30
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
What socket type are the Xeon's?
They are LV xeons - 2.8 Ghz, with package type being FC-mPGA4 (604-pin). So, socket 604.
full member
Activity: 196
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Web Dev, Db Admin, Computer Technician
What socket type are the Xeon's?
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
Good idea, I wasn't thinking. I'll need to see if the place has yellow (and orange? How much 3.3v do I actually need?) in the same type of wire available.

You could probably get by with smaller gauge wire on the 5 & 3.3 v lines too Smiley


That is correct sir!
I like how the wire is stiff enough to keep its shape for the long term. THHN uses large strands, and isn't all floppy like fine-stranded wire of lower gauge. Plus, it looks cool. I'm just putting my panel building skills to work in a different application  Cool

Besides, I might be running much longer lengths than usual, so it helps with voltage drop too.
sr. member
Activity: 406
Merit: 250
QUIFAS EXCHANGE
Good idea, I wasn't thinking. I'll need to see if the place has yellow (and orange? How much 3.3v do I actually need?) in the same type of wire available.

You could probably get by with smaller gauge wire on the 5 & 3.3 v lines too Smiley


That is correct sir!
full member
Activity: 180
Merit: 100
Are you using extra long PCIe extenders? (I know the ones I have from Cablesaurus wouldn't be long enough)

Other than that, looks promising!
Yes, I'll probably have to custom order some, unless I can find a place that makes good quality extra long ones.

Haploid23 makes custom pcie extension cables fairly cheap.

https://bitcointalksearch.org/topic/fs-custom-length-pci-e-extension-cables-with-or-without-molex-power-38725

I just got a few long ones (26 cm) off of him, they work and are good quality.
legendary
Activity: 1795
Merit: 1198
This is not OK.
Good idea, I wasn't thinking. I'll need to see if the place has yellow (and orange? How much 3.3v do I actually need?) in the same type of wire available.

You could probably get by with smaller gauge wire on the 5 & 3.3 v lines too Smiley
sr. member
Activity: 266
Merit: 250
The king and the pawn go in the same box @ endgame
Should name it...El Hashacabra! Cool
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
If you intend to use 4 colors when wire them to spec.
Black - Ground
Yellow - 12V
Orange -3.3V
Red - 5V
Good idea, I wasn't thinking. I'll need to see if the place has yellow (and orange? How much 3.3v do I actually need?) in the same type of wire available.
donator
Activity: 1218
Merit: 1079
Gerald Davis
I also started wiring up the headers, using 14 AWG stranded wire. I know, it is way the fuck overkill, but so what. It keeps its shape very well, and is nice to work with (not too small). The black wires currently connected are for the ground, and I will be adding red for +12VDC. I'll need to find a few more colors for +5VDC and +3.3VDC.

If you intend to use 4 colors when wire them to spec.
Black - Ground
Yellow - 12V
Orange -3.3V
Red - 5V

Wiring looks awesome.  Should be nice clean power.
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
I found the connectors that fit my server PSUs. They are Molex EXTreme PowerMass connectors, and I ordered a few today.

I also started wiring up the headers, using 14 AWG stranded wire. I know, it is way overkill, but so what. It keeps its shape very well, and is nice to work with (not too small). The black wires currently connected are for the ground, and I will be adding red for +12VDC. I'll need to find a few more colors for +5VDC and +3.3VDC.

rjk
sr. member
Activity: 448
Merit: 250
1ngldh
Yea, I suspect it's to keep the gap between the workstation and enthusiast. But really, having a 5ghz 2600k for doing your VM work? Sounds like disaster for not having ECC.

I was throwing out the 775 reference in an attempt that maybe you can find a much cheaper option than the e3 board.

Honestly, if you are running a low-end server, just get a Xeon E3-1230. SB, Quad, HT, VT-d for $240. Pretty much unbeatable. No reason to run a server on a 2600, k or not.

The problem for him was the cost of the board vs what he has now. It's like 1300 to change to the SB.

I was just speaking in reference to the mention of running a server on a 2600k. Not the best idea in my humble opinion.
It was going to be my personal desktop, and the idea was that I would be able to mine on the card(s), and not worry if the mining process (or the mining operating system for that matter) crashed. In addition, it would enable me to restart my desktop remotely without worrying whether it would never come back up for whatever reason. If windows BSODed, I would have been able to reboot it remotely via dom0, and when working locally I would have all the benefits of a GPU-accelerated deskop experience.
member
Activity: 109
Merit: 11
regarding PCIe xtenders:

I simply plugged to of the regular ones together - works like a charm. Brand? Hong Kong ;-)

Give it a try!

Jabba
full member
Activity: 196
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Web Dev, Db Admin, Computer Technician
What if each core is running one instance of the driver, 2 cores 2 drivers?
I guess that might require some type of virtualization?

Another thought, QubesOS (Fedora based) runs server type Xen on a single desktop but with each instance running an app instead of an OS.
Might QubesOS be able to run 2 drivers?

Still thinking...
donator
Activity: 1218
Merit: 1079
Gerald Davis
8 GPU limit question:
I talked to someone who had built a hash cracker that allotted one CPU core per GPU. It was an Nvidia project.
Would it be possible to allot 1 CPU core, of a dual or quad core, per 8 GPU's in this ATI hash cracking for BTC?

CPU cores have nothing to do with the limit.  You could have a board with 24 cores (4 sockets 6 cores each) and still have the 8 GPU  limit.
full member
Activity: 196
Merit: 100
Web Dev, Db Admin, Computer Technician
8 GPU limit question:
I talked to someone who had built a hash cracker that allotted one CPU core per GPU. It was an Nvidia project.
Would it be possible to allot 1 CPU core, of a dual or quad core, per 8 GPU's in this ATI hash cracking for BTC?
hero member
Activity: 560
Merit: 500
Ad astra.
Yea, I suspect it's to keep the gap between the workstation and enthusiast. But really, having a 5ghz 2600k for doing your VM work? Sounds like disaster for not having ECC.

I was throwing out the 775 reference in an attempt that maybe you can find a much cheaper option than the e3 board.

Honestly, if you are running a low-end server, just get a Xeon E3-1230. SB, Quad, HT, VT-d for $240. Pretty much unbeatable. No reason to run a server on a 2600, k or not.

The problem for him was the cost of the board vs what he has now. It's like 1300 to change to the SB.

I was just speaking in reference to the mention of running a server on a 2600k. Not the best idea in my humble opinion.
sr. member
Activity: 413
Merit: 250
Jumping back to your VT-d problem:

From what I read a few months ago putting my ESXi box together, VT-d is more chipset related than it is CPU. There are some socket 775 cpu's with vt-d enabled (see: http://ark.intel.com/products/33910/Intel-Core2-Duo-Processor-E8400-(6M-Cache-3_00-GHz-1333-MHz-FSB)) Granted, you need a CPU that can do it, but between Manufacturer's not enabling it in BIOS and certain chipsets not supporting it, it was a pain all across the board.

If you find a board with vt-d enabled, finding a cpu that supports vt-x will be cake for the socket.
Yes, the VT support is dependent on both the chipset and the CPU. I found this out the hard way on a different rig I built. I built it using a board with a Z68 chipset and an i7-2600k. It's the high-end overclocking edition, it should work right? Hell no. Fucking Intel. I need P67 and a i7-2600 non-K in order to get the VT-d and other useful features. WTF.

Yea, I suspect it's to keep the gap between the workstation and enthusiast. But really, having a 5ghz 2600k for doing your VM work? Sounds like disaster for not having ECC.

I was throwing out the 775 reference in an attempt that maybe you can find a much cheaper option than the e3 board.

Honestly, if you are running a low-end server, just get a Xeon E3-1230. SB, Quad, HT, VT-d for $240. Pretty much unbeatable. No reason to run a server on a 2600, k or not.

The problem for him was the cost of the board vs what he has now. It's like 1300 to change to the SB.
hero member
Activity: 560
Merit: 500
Ad astra.
Jumping back to your VT-d problem:

From what I read a few months ago putting my ESXi box together, VT-d is more chipset related than it is CPU. There are some socket 775 cpu's with vt-d enabled (see: http://ark.intel.com/products/33910/Intel-Core2-Duo-Processor-E8400-(6M-Cache-3_00-GHz-1333-MHz-FSB)) Granted, you need a CPU that can do it, but between Manufacturer's not enabling it in BIOS and certain chipsets not supporting it, it was a pain all across the board.

If you find a board with vt-d enabled, finding a cpu that supports vt-x will be cake for the socket.
Yes, the VT support is dependent on both the chipset and the CPU. I found this out the hard way on a different rig I built. I built it using a board with a Z68 chipset and an i7-2600k. It's the high-end overclocking edition, it should work right? Hell no. Fucking Intel. I need P67 and a i7-2600 non-K in order to get the VT-d and other useful features. WTF.

Yea, I suspect it's to keep the gap between the workstation and enthusiast. But really, having a 5ghz 2600k for doing your VM work? Sounds like disaster for not having ECC.

I was throwing out the 775 reference in an attempt that maybe you can find a much cheaper option than the e3 board.

Honestly, if you are running a low-end server, just get a Xeon E3-1230. SB, Quad, HT, VT-d for $240. Pretty much unbeatable. No reason to run a server on a 2600, k or not.
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