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Old 2003-10-28, 01:30   #12
Lumly
 
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Aug 2002
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Quote:
Originally posted by PrimeCruncher
Only 2.8? I've heard stories about people who've gotten it up to 3.2! Still, you've got a LOT of processing power there. That's, let's see... (whips out calculator and does the math since I don't want to waste CPU cycles ) 84 GHz!! I surrender! I surrender!
Well, heretic had problems with OC on his Prime Monster. As I recall he went through a rigourous test discipline when he overclocked his 1.6As and some of them started to generate errors after a month or two. If everyone is getting 3.0G for sure, I'd err on the side of caution and go for 2.8G. We are talking 30+ machines.

Anyway, 30 was just a number thrown out there. I'd have to sit down and do real calculations, but they would be conditional on knowing how much the electrical/AC work would cost. My feeling would be it would be more around 40 computers, assuming I'd be holding back some of the cost to pay the electricity. 112G of P4 goodness.
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Old 2003-10-28, 14:31   #13
nucleon
 
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You guys are too frugal. Use a bit of imagination... :)

http://www.vapochill.com/

Buy a couple of these cases and push a couple of cpus over 4GHz. :) Then have about 20 of the usual suspects. (P4 2.4s etc..)

Personally with $25k US would go a long way here is Oz hehe. I'd have to go with a diskless farm. Not buying HDDs saves a lot of money and power, not to mention avoiding keeping the neighbours up with the noise :)

As for a server, I'd have to go with dual Xeon board...why? Well it has PCI-X 64bit 66/100 MHz slots, grab a IDE RAID controller that can run at those speeds and you have awesome HDD throughput.

Motherboard:
http://www.tyan.com/products/html/thunderi7505.html
http://www.supermicro.com/PRODUCT/Mo...7505/X5DAE.htm
http://www.abit.com.tw/page/en/serve...station+Boards
http://www.intel.com/design/servers/...e7505vb2_srvr&

Controller (SATA):
http://www.adaptec.com/pdfs/2410SA_datasheet.pdf
http://www.promise.com/product/produ...112&familyId=2

Of course you'd have to grab a decent network switch with GigEthernet ports.

-- Craig
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Old 2003-10-28, 20:21   #14
outlnder
 
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Asus P4P800 with P4 2.8C with HSF.....$338
Samsung PC3500 DDR
256MB $45ea x2.....................................$90
Western Digital 30GB HDD......................$39
Generic AGP video card...........................$11
Sparkle 300W PSU..................................$21

Total......................................................$499

Shipping and taxes vary, approx.............$50

Say $550 for each unit.

Possible 45 machines not including electricity.

One 20M LL test per machine= over 112.5 p90 CPU years per 10 days.
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Old 2003-10-28, 22:01   #15
QuintLeo
 
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It's too bad the P4-based Celerons are so SLOW at Prime - I seem to recall them being SLOWER than Athlons per clock, as opposed to the actual P4s that are significantly faster per clock.

Prime of the few cases where the real P4 is significantly MORE cost-effective than Celerons....
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Old 2003-10-29, 00:07   #16
patrik
 
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"Patrik Johansson"
Aug 2002
Uppsala, Sweden

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First USD 25000 = SEK 193540. All prices in SEK, including tax.
Code:
ASUS P4S800				 837.50	 overclocked to 3.14 GHz (got that)
 or
ASUS P4P800				1118.60  overclocked to 3.22 GHz (guessing)

P4 2.40C 800 MHz			1847.26
Kingston 256 MB PC3200 CAS 2.5		 597.11
Maxtor, DiamondMax Plus 8 30GB		 511.98
Compucase Miditower CI-6A21 300W	 800.00
Papst case fan 120 mm			 169.00

Total 				SEK 4762.85 or 5043.95

Shipping				 200
120 W power for three years (3150 kWh)  2800
That means 24 new computers. I'd want the P4P800, but maybe I would have to go for the cheaper. Then I could afford to buy hardware to connect them to my LAN (I've got a six free ports to connect the switches and the other three computers).
Code:
D-LINK DES-1008D 10/100 DUAL SPEED 8-PORT SWITCH 3 x 406.25
Network cables, 1 m				21 x  56.25
Network cables, 2 m				 5 x  68.75
Network cables, 5 m				 1 x  93.75

Network total					SEK 2837.50
Power would not be a problem. At 120 W each would take only 120/230 A = 0.52 A. (I'm running 5 P4's using 3.0 A.)
I just have to make sure they are split up on different (10 A) fuses.
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Old 2003-10-29, 02:44   #17
Lumly
 
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Do the USB ports on the ASUS P4S800 work under WIN XP? The P4S333 has problems is why I'm asking.
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Old 2003-10-29, 03:09   #18
PageFault
 
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And guess what boart he chose ... asus p4s333 ... I suspect this is the reason, as it is impossible to make the machine fail in torture or any other load intensive process. I suspect the boart has far more to do with this ... look at his results, certain machines almost always fail, looks like a QC issue.

Best is to perform thorough doublecheck testing before deployment and at periodic intervals afterwards. I'm at 3000, stock vcore, only because I haven't bothered to push for more, all this monitor unplugging sucks. So far, 9 of 9 doublechecks have matched ...

Quote:
Originally posted by Lumly
Well, heretic had problems with OC on his Prime Monster. As I recall he went through a rigourous test discipline when he overclocked his 1.6As and some of them started to generate errors after a month or two. If everyone is getting 3.0G for sure, I'd err on the side of caution and go for 2.8G. We are talking 30+ machines.

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Old 2003-10-29, 03:11   #19
PageFault
 
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Dont know about xp, I used a usb louse while installing w2k pro, usb is usb isn't it ... a veritable disease. If I could disable it ...

Quote:
Originally posted by Lumly
Do the USB ports on the ASUS P4S800 work under WIN XP? The P4S333 has problems is why I'm asking.
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Old 2003-10-30, 18:06   #20
E_tron
 
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Austin, TX

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to save on cooling... the machine can be biult in Alaska. During the winter months maybe the cpus could get about 4ghz...
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Old 2003-10-31, 10:20   #21
battlemaxx
 
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My slightly older comment wasn't about different systems, it was about having the same board and cpu but going for something that has been out slightly longer, and thus possibly less expensive than 'state of the art'.

According to the benchmarks, a P IV 3.2 GHz could pull a DC in 'bout 41 hours. A 2 GHz model would take 'bout 65 hours, or 'bout 50% longer (close enough for government work).

3.2 is $387 according to pricewatch, and the 2.0 is $117. So the faster chip is over three times as expensive.

If you look at processors alone you could average a DC every 22 hours or so on three slower machines.
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Old 2003-11-02, 14:51   #22
patrik
 
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"Patrik Johansson"
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Quote:
Originally posted by Lumly
Do the USB ports on the ASUS P4S800 work under WIN XP? The P4S333 has problems is why I'm asking.
I don't know. I use it as a dedicated cruncher box, so I run it under Linux and have nothing but network (and power) connected to it.
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