Boardview for graphics cards
Know the board before you probe it.
Pinouts, rails, expected measurements and the power sequence, on the board itself. In your browser, nothing to install.
3 boards a month, no card, no expiry.
Boards from every brand we service
Boardview plans
- Starter
Look at every board
Every board in the library, open in a tab.
No monthly cap. Pan, zoom, rotate and flip. Isolate top or bottom copper so a bottom-side short stops hiding under top-side silkscreen. Follow a net from any pad to its far end, and find a part by its designator instead of counting across a photo.
- Unlimited boards
You did this in the hero: hover a pad, switch to Bottom.
Get Starter$6.03/moCheckout opens on the 12-month term (33% off). You can change it there.RTX 3080 · ROG Strix · topU9 · 1V8 buckClick a chip to light its net. Switch to Bottom for the capacitor field.
Illustrative board. Typical values for a GA102 card — verify on your board.
- Tech
Check the power
Every rail, what it should read, and when it comes up.
The healthy voltage and resistance to ground on every rail of a working board, shown on the board itself, and the order the rails come up in. The sequence plays on the board, so a no-power card becomes a question of which step failed. The datasheet behind each part is one click away.
- Healthy rail voltages
- Healthy rail resistances
- Board power sequence
- Datasheets
- Schematic PDFs
The power sequence beside the hero board: that is Tech.
Get Tech$12.73/moCheckout opens on the 12-month term (33% off). You can change it there.RTX 3080 · ROG Strix · power1V8: 1.80 V and 80 – 300 Ω to ground at L12, both healthy.
Illustrative board. Typical values for a GA102 card — verify on your board.
- Shop
Repair and source it
From the marking on the chip to a part in the mail.
Open the pinout of any part and the voltage and resistance each pin should read. Resolve the marking to the part number, maker and package, see the interchangeable alternatives a bench actually stocks, and buy it from its page.
- Part identity
- Part marking resolution
- IC pinouts
- Healthy component voltages
- Healthy component resistances
- Parts pages
- Interchangeable parts
- Part sourcing link
The Pinout and Measure tabs in the popup: that is Shop.
Get Shop$23.45/moCheckout opens on the 12-month term (33% off). You can change it there.U2 · GPU core VRM controllerIllustrative board. Typical values for a GA102 card — verify on your board.
- Lab
Run the repair
The circuit around the part, and a guide through the fault.
Each part's own place in the power sequence: what enables it and what it enables. The typical-application circuit with the values of the components around it. Where to measure for a symptom, and an assistant that walks the repair with you, by text or by voice.
- Fault-point suggestions
- Component power sequence
- Application circuit
- Repair assistant
- Voice assistant
The Sequence and Circuit tabs in the popup: that is Lab.
Get Lab$46.23/moCheckout opens on the 12-month term (33% off). You can change it there.U2 · GPU core VRM controllerClick a net to see its parts and values.
Illustrative board. Typical values for a GA102 card — verify on your board.
Every price is per month in USD, on the 12-month term. The full comparison is on the pricing page.
Boards in the library
Every board in the catalogue →95 boards with a viewer file for 39 models. Each model links to its page; the catalogue opens each board.
GeForce GTX 16
GeForce RTX 20
GeForce RTX 40
Radeon RX Vega
Radeon RX 5000
Radeon RX 6000
Radeon RX 7000
One click
Click a chip. Everything you'd otherwise look up.
What the panel on the right of the board holds, laid out side by side.
U2 · GPU core VRM controller
uP9512R multiphase PWM controller
- Marking
- uP9512R
- Part no.Shop
- uP9512RQGJ
- Maker
- uPI Semiconductor
- Package
- QFN-40, 5×5 mm
PinoutShop
Pin names and functions, on the part.
MeasureShop
What each pin should read.
SequenceLab
What enables it, what it enables.
CircuitLab
The circuit around it, with values.
Fault-point suggestions
Tell it what the card does. It shows where to look.
Pick a symptom. The board lights where to measure first, with the value to expect. The values here are illustrative.
Check first
- 1. NVVDD at the chokes0.7–1.1 VTech
- 2. EN on the core controller> 1.6 VShop
- 3. FBVDDQ1.35 VTech
Then the repair assistant walks you from the failing reading to the part.
Parts pages · Shop
Every part on the board has its own page.
Find it by the marking on the chip, its part number, or a click on the board.
- Search by part number or markingType what's printed on the chip; the marking resolves to the part.
- Or click it on the boardEvery mapped component opens its own page.
- Pinout and measurementsPin names, and what each pin should read.
- What fits in its placeInterchangeable parts, with price and stock.
- Datasheet, price, stockBuy it where you found it.
NCP302155MNTWG
onsemi · NCP302155 DrMOS, 55 A · marking 302155
- Marking
- 302155
- Part no.
- NCP302155MNTWG
- Maker
- onsemi
- Package
- PQFN-31, 5×5 mm
- Type
- NCP302155 DrMOS, 55 A
Your numbers
What a few minutes a repair are worth
Move the sliders. It shows what the time is worth a month, next to what Tech costs.
A month
4 hours of bench time
Your numbers, not a claim.
Versus the classic tools
A boardview file shows you where. It does not tell you what to expect there.
FlexBV, OpenBoardView and BoardViewer all render the file you give them well, and FlexBV Pro will sync a PDF schematic to it. None of them carry a pinout, a voltage to expect, a power sequence or a part number, because the file never held one. XinZhiZao does carry that kind of data, for phones and laptops, in a Windows client. This is the same idea built for graphics cards, in the browser.
| At the bench | FlexBV$150 once · free edition | OpenBoardViewfree, open source | BoardViewerfree, Windows | XinZhiZaoyearly account | GPU Doctorfrom free |
|---|---|---|---|---|---|
| Runs in the browser, nothing to install | Windows client | ||||
| The board is already there — no file to find, no key to type | you bring the file | you bring the file | you bring the file | their library | 135 GPU boards, 94 editions |
| Follow a net, isolate a layer, search a part | |||||
| Schematic linked to the board | Pro: PDF pages synced | schematic ↔ boardview jump | Lab: application circuit | ||
| IC pinout on the component you clicked | component notes, varies | Shop | |||
| Expected voltage and resistance, per rail and per pin | diode values on some boards | Tech · Shop | |||
| Power sequence, board-wide and per component | Tech · Lab | ||||
| Typical-application circuit with the surrounding values | Lab | ||||
| Part number, datasheet, interchangeable parts, buy | part numbers on some boards | Tech · Shop | |||
| Built for graphics cards | any board you have a file for | any board you have a file for | any board you have a file for | phones and laptops first |
Checked against each tool's own site, September 2026: pldaniels.com/flexbv5, openboardview.org, boardviewer.net, global.wmdang.com. Tick marks for the others are what they do well; a dash means the data is not in the product, not that the software is bad at it.
Four things you cannot do with a photo of the board
Find the part you are probing
Search by reference designator or value. The board pans to it and highlights its pads, so you are not counting components across a photo to work out which one is R412.
Follow the net, not a guess
Select a pad and every other pad on that net lights up across the board — through vias, onto the other side. Finding the far end of a signal stops being a continuity hunt.
Isolate a layer
Top and bottom copper switch independently. A bottom-side short stops hiding underneath top-side silkscreen, and the capacitor field under the die is a click away.
Match the exact board in front of you
ROG Strix, AORUS Master and Suprim X are different PCBs wearing the same model number. Boards are kept per brand and per edition rather than one generic board per GPU.
Questions
Before you open a board
What is this, exactly?
An interactive boardview of a graphics card, with the diagnostic data on the components: pin names, the voltage and resistance to expect, the power sequence, and the part behind the marking. It runs in the browser.
Is there a free plan?
Yes. Free is 3 boards a month with the whole viewer, permanently. No card, no expiry.
Which cards are covered?
NVIDIA GeForce and AMD Radeon boards from every major partner, kept per brand and per edition. The list grows as boards are added.
What does each plan add?
Starter opens every board. Tech adds the rails, the board's power sequence and datasheets. Shop adds the part behind each marking, its pinout, the numbers on each pin, parts pages, what fits and where to buy it. Lab adds each part's own sequence, the circuit around it, fault points, the repair assistant and the voice assistant. Every plan includes everything below it.
Can I pay for several months at once?
Yes, and it costs less: 10% off 3 months, 20% off 6 and 33% off 12. A term is paid once and does not renew by itself.
How do I pay?
Cash on delivery, whish money payment link and whish transfer. Tax is added by billing country.
Can I upload my own boardview file?
No. Files from unknown sources are how malware travels between benches, and the point is that the board is already here, checked and annotated.
Are the measurements guaranteed?
They are expected values for that board, given as a range where a range is honest. A reading far outside it is the point.
Open your first board
Pick a model, choose the edition on your bench, and the board opens in the browser.