Strangelet - revision history

Dank: /* TCO */

2023-03-26T09:26:33Z

TCO

← Older revision		Revision as of 09:26, 26 March 2023
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	==TCO==		==TCO==
	I bought an [https://www.server-rack-online.com/apc-netshelter-ar2105blk.html APC NetShelter VX] secondhand to house this monster, though that is not included in the TCO. Similarly, there are several hundred dollars of watercooling expenses (~~4x waterblocks,~~ a [[inaMORAta\|MoRa-3]], an EKWB Dual XTOP D5...) that I've not bothered to include. Altogether, they would add about another thousand to the bill.		I bought an [https://www.server-rack-online.com/apc-netshelter-ar2105blk.html APC NetShelter VX] secondhand to house this monster, though that is not included in the TCO. Similarly, there are several hundred dollars of watercooling expenses (a [[inaMORAta\|MoRa-3]], an EKWB Dual XTOP D5...) that I've not bothered to include. Altogether, they would add about another thousand to the bill.

	* Original: $1457		* Original: $1457

Dank: /* TCO */

2023-03-26T09:26:08Z

TCO

← Older revision		Revision as of 09:26, 26 March 2023
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	* Original: $1457		* Original: $1457
	* Replacements: $~~197 + $15 + $63 + $86 - $74 = $287~~		* Replacements: $562
	* Additions: $1683		* Additions: $1683
	Total: $~~3115~~		Total: $3702

Dank: /* Replacements (newly purchased) */

2023-03-26T09:25:48Z

Replacements (newly purchased)

← Older revision		Revision as of 09:25, 26 March 2023
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	* Replaced 3x Nidec Ultra Flow rear fans with Noctua NF-A8 chromax.Black ($63)		* Replaced 3x Nidec Ultra Flow rear fans with Noctua NF-A8 chromax.Black ($63)
	* Replaced 4x San Ace 92 fans with Noctua NF-A9 chromax.Black ($86)		* Replaced 4x San Ace 92 fans with Noctua NF-A9 chromax.Black ($86)
	* Replaced 4x 4U SuperMicro heatsinks with 4x Alphacool Eisblock XPX Pro Aurora waterblocks		* Replaced 4x 4U SuperMicro heatsinks with 4x Alphacool Eisblock XPX Pro Aurora waterblocks ($215)
	* Replaced 4x E7-4850 v2 Xeons with 4x E7-8890 v3 Xeons (~$60)		* Replaced 4x E7-4850 v2 Xeons with 4x E7-8890 v3 Xeons ($60)
	* Sold 16x 16GB DDR3-1066 ECC 4x4 RDIMMs (-$74)		* Sold 16x 16GB DDR3-1066 ECC 4x4 RDIMMs (-$74)
	We lose a good deal of airflow and static pressure with the fan change; the new fans are thinner (25mm), and rotate at significantly lower speeds. The NF-A8 is 2.37 mmH₂O and 55.5 m³/h, and the NF-A9 2.28 mmH₂O and 78.9 m³/h, compared to 197.9 and 239.6 m³/h for the builtin equivalents. We're thus down to about 25% the original airflow, but in exchange, we've almost completely eliminated noise.		We lose a good deal of airflow and static pressure with the fan change; the new fans are thinner (25mm), and rotate at significantly lower speeds. The NF-A8 is 2.37 mmH₂O and 55.5 m³/h, and the NF-A9 2.28 mmH₂O and 78.9 m³/h, compared to 197.9 and 239.6 m³/h for the builtin equivalents. We're thus down to about 25% the original airflow, but in exchange, we've almost completely eliminated noise.
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	The E7-8890s v3s are big upgrades on the E7-4850 v2s, increasing my core count by 50% and moving to the far superior [[Ivy Bridge]] microarchitecture.		The E7-8890s v3s are big upgrades on the E7-4850 v2s, increasing my core count by 50% and moving to the far superior [[Ivy Bridge]] microarchitecture.

			Replacements total: $197 + $15 + $63 + $86 + $215 + $60 - $74: $562

	===Additions (newly purchased)===		===Additions (newly purchased)===

Dank: /* Additions (newly purchased) */

2023-03-26T09:24:25Z

Additions (newly purchased)

← Older revision		Revision as of 09:24, 26 March 2023
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	* 2x USB 3.0 powered hub		* 2x USB 3.0 powered hub
	* USB 3.2 PCIe card		* USB 3.2 PCIe card

			Additions total: $679 + $326 + $23 + $46 + $150 + $175 + $35 + $66 + $183 = $1683

	===Additions (from stores on hand)===		===Additions (from stores on hand)===

Dank: /* TCO */

2023-03-26T09:24:14Z

TCO

← Older revision		Revision as of 09:24, 26 March 2023
Line 66:		Line 66:
	* Original: $1457		* Original: $1457
	* Replacements: $197 + $15 + $63 + $86 - $74 = $287		* Replacements: $197 + $15 + $63 + $86 - $74 = $287
	* Additions: $~~141 + $196 + $640 + $23 + $46 + $175 + $150 = $1371~~		* Additions: $1683

	Total: $3115		Total: $3115

Dank: /* Additions (newly purchased) */

2023-03-26T09:22:19Z

Additions (newly purchased)

← Older revision		Revision as of 09:22, 26 March 2023
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	===Additions (newly purchased)===		===Additions (newly purchased)===
	* ~~10x~~ 32GB ~~Dell PC3-12800L DDR3 ($141)~~		* 32x 32GB Samsung PC3L-12800L DDR3 ($679)
	* 6x 32GB A-Tech PC3L-12800L DDR3 ($~~196~~)		* 32x 32GB Samsung PC3L-12800L DDR3 ($326)
	* 32x 32GB Samsung PC3L-12800L DDR3 ($~~640~~)
	* 2x [https://www.amazon.com/dp/B09JM5FVC7?psc=1&ref=ppx_yo2ov_dt_b_product_details Bejavr M.2 PCIe cards] ($23)		* 2x [https://www.amazon.com/dp/B09JM5FVC7?psc=1&ref=ppx_yo2ov_dt_b_product_details Bejavr M.2 PCIe cards] ($23)
	* 2x [https://www.amazon.com/dp/B099185SSV?psc=1&ref=ppx_yo2ov_dt_b_product_details GLOTRENDS U.2 PCIe card] ($46)		* 2x [https://www.amazon.com/dp/B099185SSV?psc=1&ref=ppx_yo2ov_dt_b_product_details GLOTRENDS U.2 PCIe card] ($46)
			* Connect-X CX455A [[100GbE\|100Gbps]] QSFP28 PCIe ($150 including BiDi transceiver)
	* 2x Samsung 980 1TB M.2 2280 PCIe 3.0 NVMe SSDs ($175)		* 2x Samsung 980 1TB M.2 2280 PCIe 3.0 NVMe SSDs ($175)
			* SuperMicro SSD-DM016-SMCMVN1 16GB 6G SATA-DOM ($35)
			* Chelsio N320E-CR 10Gb/s dual-port ($66)
			* 2x NVIDIA K80 Tesla ($183)
			* 2x USB 3.0 powered hub
	* USB 3.2 PCIe card		* USB 3.2 PCIe card
	* USB 3.0 powered hub
	* Connect-X CX455A [[100GbE\|100Gbps]] QSFP28 PCIe ($150 including BiDi transceiver)
	* 2X NVIDIA K80 Tesla ($160)

	===Additions (from stores on hand)===		===Additions (from stores on hand)===

Dank: /* Additions (newly purchased) */

2023-03-26T09:17:30Z

Additions (newly purchased)

← Older revision		Revision as of 09:17, 26 March 2023
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	* USB 3.0 powered hub		* USB 3.0 powered hub
	* Connect-X CX455A [[100GbE\|100Gbps]] QSFP28 PCIe ($150 including BiDi transceiver)		* Connect-X CX455A [[100GbE\|100Gbps]] QSFP28 PCIe ($150 including BiDi transceiver)
			* 2X NVIDIA K80 Tesla ($160)

	===Additions (from stores on hand)===		===Additions (from stores on hand)===

Dank: /* Changes */

2023-03-18T17:25:10Z

Changes

← Older revision		Revision as of 17:25, 18 March 2023
Line 33:		Line 33:
	* Replaced 4x San Ace 92 fans with Noctua NF-A9 chromax.Black ($86)		* Replaced 4x San Ace 92 fans with Noctua NF-A9 chromax.Black ($86)
	* Replaced 4x 4U SuperMicro heatsinks with 4x Alphacool Eisblock XPX Pro Aurora waterblocks		* Replaced 4x 4U SuperMicro heatsinks with 4x Alphacool Eisblock XPX Pro Aurora waterblocks
			* Replaced 4x E7-4850 v2 Xeons with 4x E7-8890 v3 Xeons (~$60)
	* Sold 16x 16GB DDR3-1066 ECC 4x4 RDIMMs (-$74)		* Sold 16x 16GB DDR3-1066 ECC 4x4 RDIMMs (-$74)
	We lose a good deal of airflow and static pressure with the fan change; the new fans are thinner (25mm), and rotate at significantly lower speeds. The NF-A8 is 2.37 mmH₂O and 55.5 m³/h, and the NF-A9 2.28 mmH₂O and 78.9 m³/h, compared to 197.9 and 239.6 m³/h for the builtin equivalents. We're thus down to about 25% the original airflow, but in exchange, we've almost completely eliminated noise.		We lose a good deal of airflow and static pressure with the fan change; the new fans are thinner (25mm), and rotate at significantly lower speeds. The NF-A8 is 2.37 mmH₂O and 55.5 m³/h, and the NF-A9 2.28 mmH₂O and 78.9 m³/h, compared to 197.9 and 239.6 m³/h for the builtin equivalents. We're thus down to about 25% the original airflow, but in exchange, we've almost completely eliminated noise.

	It turns out that these mounts are LGA 2011 "Narrow", as opposed to the LGA 2011 with which we're all familiar. I couldn't find any brackets for these 90mm x 54mm mounts, so I designed and printed my own. They work just fine. You can find the OpenSCAD source [https://github.com/dankamongmen/openscad-models/blob/master/lga2011-narrow.scad here].		It turns out that these mounts are LGA 2011 "Narrow", as opposed to the LGA 2011 with which we're all familiar. I couldn't find any brackets for these 90mm x 54mm mounts, so I designed and printed my own. They work just fine. You can find the OpenSCAD source [https://github.com/dankamongmen/openscad-models/blob/master/lga2011-narrow.scad here].

			The E7-8890s v3s are big upgrades on the E7-4850 v2s, increasing my core count by 50% and moving to the far superior [[Ivy Bridge]] microarchitecture.

	===Additions (newly purchased)===		===Additions (newly purchased)===

Dank at 16:05, 12 March 2023

2023-03-12T16:05:35Z

← Older revision		Revision as of 16:05, 12 March 2023
Line 3:		Line 3:
	I want it watercooled. I want it silent. I want it to consume less than a kilowatt. I want redundancy on everything. I want a P-Bomb, and I want to spend less than twenty thousand dollars on it.		I want it watercooled. I want it silent. I want it to consume less than a kilowatt. I want redundancy on everything. I want a P-Bomb, and I want to spend less than twenty thousand dollars on it.

	All prices listed include any tax and shipping. The first sixteen disks will be coming out of [[Schwarzger%C3%A4t_III\|my workstation]]. There's a semidecent writeup on [[~~A_Supercomputer_of_One~~%27s_Own\|DANKBLOG]].		All prices listed include any tax and shipping. The first sixteen disks will be coming out of [[Schwarzger%C3%A4t_III\|my workstation]]. There's a semidecent writeup on [[A_Rack_of_One%27s_Own\|DANKBLOG]].

	==As delivered==		==As delivered==

Dank at 16:04, 12 March 2023

2023-03-12T16:04:05Z

← Older revision		Revision as of 16:04, 12 March 2023
Line 3:		Line 3:
	I want it watercooled. I want it silent. I want it to consume less than a kilowatt. I want redundancy on everything. I want a P-Bomb, and I want to spend less than twenty thousand dollars on it.		I want it watercooled. I want it silent. I want it to consume less than a kilowatt. I want redundancy on everything. I want a P-Bomb, and I want to spend less than twenty thousand dollars on it.

	All prices listed include any tax and shipping. The first sixteen disks will be coming out of [[Schwarzger%C3%A4t_III\|my workstation]].		All prices listed include any tax and shipping. The first sixteen disks will be coming out of [[Schwarzger%C3%A4t_III\|my workstation]]. There's a semidecent writeup on [[A_Supercomputer_of_One%27s_Own\|DANKBLOG]].

	==As delivered==		==As delivered==