AM3352 Chip Tester - Bench Fixture for Sitara Processors

Description

An AM3352 chip tester — a bench fixture with a BGA socket that tells you whether a Texas Instruments Sitara AM3352 processor is alive before you commit it to a control board. The AM3352 is a 1 GHz ARM Cortex-A8 SoC, and in mining hardware it is the processor on BeagleBone-style Antminer control boards. The fixture has a spring-clamped BGA socket, banana-post DC input, an Ethernet jack and a digital readout, and its front panel is marked AM3352 test fixture.

Read this first: which Antminer control boards actually use an AM3352

This is the single fact that decides whether this tool is worth anything to you, and it is the one most listings leave out. Antminer control boards come in three families with three different processors:

Control board family	Processor	Where it shows up
Xilinx Zynq (C55, C71)	Zynq 7007 SoC + FPGA	The earlier S19-generation boards — S19, S19 Pro, T19 and early S19j / S19j Pro, and older S9 / T9 / L7 hardware
BeagleBone Black (BBB)	TI AM335x Sitara — this is the AM3352	Later S19j and S19j Pro batches
Amlogic	Amlogic A113D	The newest S19j / S19j Pro batches

If your dead control board is a Zynq or an Amlogic board, this fixture cannot help you. Identify the board before you buy the tool, not after. The quick tell is the storage: Zynq boards have an accessible SD card slot, BeagleBone boards have one hidden under the cover, and the Amlogic boards have no SD slot at all — just micro USB. If you are not sure what you are holding, send us a photo of the board and we will tell you.

When this pays for itself

Control board repair has one expensive failure mode: you decide the SoC is dead, you spend the better part of an hour pulling it and reballing a replacement, and the board still does not boot — and now you do not know whether the original diagnosis was wrong or the replacement chip was bad. Chips bought loose, in trays, described as “new” or as tested pulls, are exactly where that uncertainty comes from. Socketing the chip and getting a straight answer before it goes anywhere near a hot plate is what this fixture is for. It is a go / no-go on the chip, which removes one of the two variables.

It is a specialist tool and it is priced like one, so the honest guidance is: buy it if you repair control boards in volume and you are buying AM3352 chips loose. If you have one dead board, a tested replacement control board is the cheaper and faster answer, and we also stock a genuine Avalon 1166 Pro control board for the Canaan side. If the board boots but the miner will not accept it, the problem is usually firmware lock rather than silicon — that is what the Amlogic control board unlock kit addresses.

What the panel shows

The fixture carries a two-channel digital readout on the front. We are not going to tell you what each channel is calibrated to display without having the unit in front of us, because guessing at a meter’s units on a diagnostic tool is how people end up misreading results. Ask us and we will photograph the panel and the accessories that ship with the actual unit. The rest of the bench tools are in repair parts and tools, and everything else is on the miner list.

Condition and warranty

This listing does not state a condition grade or a warranty term, so we are not going to imply one. Before you buy, ask us and we will tell you what we actually have — new sealed, opened, bench-tested, or untested — and put any coverage in writing. Ask us about this unit.

What’s in the box

1 × AM3352 Chip Tester Texas Instruments Microprocessor Control ASIC
Nothing that is not listed above. Cords, controllers, brackets and spares are only included when this listing names them — if you need to know before you pay, ask on +1 (781) 577-0377 or ns@ingmining.com and we will confirm in writing what is physically in the crate

Questions buyers ask about this part

Is this a complete, working machine?

No. This listing is on the parts and repair shelf, which holds both brand-new spares and bench tools and as-is units sold for repair. Which of those this one is, is stated in the description above — read it before you order, and ask us on +1 (781) 577-0377 or ns@ingmining.com if anything about compatibility with your fleet is unclear. We would rather answer the question than take a return.

What should I check the day it arrives?

Photograph the pallet or box before you open it, keep the packaging, and run the 48-hour acceptance test straight away. Freight claim windows are short, and a fault found on day two is a conversation while a fault found on day thirty is an argument. Our own six-step bench procedure is published in full, so you can repeat exactly what we did.

Shipping cost for this exact item, and how warranty and returns work here, are answered in the Shipping & buying tab on this page. Anything else, ask a person on +1 (781) 577-0377 or ns@ingmining.com — we would rather talk before you buy.

Read the marking on your control board before you order this. The AM3352 is the processor on the BeagleBone-style Antminer boards only — the Zynq C55 and C71 boards on much of the S19 generation use a different SoC entirely and this fixture will not tell you anything about them. The parts guide covers why control-board fitment is never derivable from the model name.

Related hardware and where this sits in the store

Parts, fixtures and tools that go with the same repair job:

Category: Need Parts.

Where this listing sits

This one is on the parts and repair shelf. That shelf holds two different things: brand-new spares and bench tools, and as-is units sold for repair. Which of the two this listing is, is stated in its own description — read it before you order.

What our grades mean

These are the only words we use, and each one means a specific thing. They are not interchangeable and we do not soften them to move stock.

New	Unused stock. Factory sealed unless the listing says otherwise — “new, open box” means exactly that, and the listing will say it.
Tested working	Second-hand, and it ran on our bench at the hashrate the listing states. We measured it; we are not repeating what the last owner told us. Expect cosmetic wear.
Refurbished	Tested working, plus work done: cleaned, thermal paste and fans dealt with, failed components replaced. The listing says what was actually done to that unit rather than using the word as decoration.
As-is / for parts	Sold with no working claim at all, at a price that reflects it. Buy these to repair or to harvest. If a listing says as-is, assume it does not hash until you have proved otherwise.
Untested	We have it, we have not powered it, and we are not going to pretend we did. Rarer than as-is and always stated explicitly.

What a grade here does not mean

Cosmetic wear is not a fault. Dust, scratches, scuffed labels and discoloured plastics are normal on hardware that has been earning. We photograph what we have; if the pictures matter to you, ask for more and we will take them.
A grade is not a warranty. Warranty terms are stated per listing, never per store — see the Shipping & buying tab. A tested-working grade describes what the machine did on our bench, not what we owe you in six months.
A boosted hashrate is not a spec. Where a unit ships on tuned firmware we say so and we give the factory figures too, because overclocking raises power faster than it raises hashrate — a tuned machine is less efficient per terahash than stock, not more.
We will not invent a grade to fill a field. If a unit came in without history and has not been through the bench, its listing says that.

How the grade gets decided

A used-hardware seller who will not tell you how they test is asking you to take the grade on trust. Ours is published: the six-step bench procedure every machine goes through, and the five measurements that get recorded — per-board hashrate, chip count, measured wall power rather than the nameplate figure, hardware error rate, and temperature under sustained load. When it reaches you, run the 48-hour acceptance test straight away, while the freight claim window is still open.

Buying second-hand for the first time? How to buy a used ASIC miner without getting burned is the long version, written from the repair bench rather than from a spec sheet.

Shipping

Shipping this item inside the United States costs $49.99 by UPS Ground — that is the rate the checkout will charge, read from the store’s own shipping settings, not an estimate. Orders ship within 7 business days.

Outside the United States the checkout quotes a flat international rate. On multi-unit or pallet orders, contact us before ordering so freight to your destination can be confirmed properly. What to check when the pallet arrives, and how a freight claim works, is covered in the mining hardware shipping guide.

What to do the day it arrives

Photograph the pallet or the box before you open it, and keep the packaging until you are satisfied. Freight claim windows are short, and damage found on day two is a conversation while damage found on day thirty is an argument.

Then run the 48-hour acceptance test straight away, while that window is still open. It is the same ground our own bench covers, so you can compare like for like: how the grade on this listing was arrived at, and the five measurements we record, are set out in the Condition & grading tab on this page.

Condition, warranty and returns

Condition: Repair part or bench tool — this shelf holds both new spares and as-is units, so read the condition stated in the description.

Warranty is stated per listing, not across the catalogue. Some units carry a manufacturer term and say so above, naming the term and the date it runs from. Many units, particularly used and AS-IS stock, carry none, and those listings do not claim one. There is no blanket warranty covering a catalogue that runs from sealed factory stock to a hashboard sold for parts. For what a mining warranty normally covers, see ASIC miner warranty explained.

Returns: ask for the terms on this unit before you pay. No single returns window is published for the whole store, because the sensible terms on a tested working machine and on a board sold AS-IS for parts are not the same terms. Email or call and ask what applies to this exact item — it is a two-minute conversation and a great deal cheaper than a dispute.

Who you are buying from

ING Mining LLC, Hanson, Massachusetts. ING MINING® is a registered U.S. trademark; our marketplace feedback is on the reviews page and the longer version of who we are is on about. Reach a person on +1 (781) 577-0377 or ns@ingmining.com.

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AM3352 Chip Tester Texas Instruments Microprocessor Control ASIC Repair Tool

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