iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
JonnyGuru.com appears to be permanently gone as an operating review site, not temporarily offline. Users reported the site unavailable in February 2021, and a domain-status report dated April 11, 2026, described the domain as redirecting to an Onamae parking page. No complete, official, searchable replacement for the original review database is currently publicly available. That establishes the site’s disappearance, but not that every backup or original file was destroyed.
What JonnyGuru was—and why its loss matters
JonnyGuru was a specialist hardware site best known for detailed power-supply-unit testing. Its reviews examined electrical performance, load behavior, protections, teardowns, components and build quality rather than relying on a manufacturer’s wattage label or a brand’s general reputation. The associated forum also became a valuable source of model-specific knowledge.
Hardware enthusiasts often regarded the site as one of the leading PSU resources; that is community judgment, not an objective ranking. Its disappearance still matters because older power supplies remain in used PCs, and a product family or brand name does not establish the quality of one exact model or revision.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Is JonnyGuru.com temporarily down or effectively gone?
The public evidence supports “effectively gone.” A temporary server fault, expired TLS certificate or hosting interruption can make a site unreachable for days or weeks. A domain that later resolves to a generic parking page is a different condition: the domain is answering, but the original service is no longer being delivered.
#1 Best Overall
- 80 PLUS GOLD CERTIFIED
- 10-year limited warranty, guaranteeing long term reliable operation
- Fully modular design
- ATX 3.1 & PCIE 5.1
HardForum and Reddit users reported the site as unavailable on February 3–4, 2021 (HardForum; Reddit). On April 11, 2026, IPAddress.com reported that Jonnyguru.com redirected to a parking page hosted by Onamae (IPAddress.com). That is strong evidence that the original site is no longer operating at the domain, but a parked domain cannot prove that private backups do not exist.
Timeline of the decline
| Date | What was reported | What it establishes |
|---|---|---|
| October 13, 2019 | An AnandTech discussion observed that JonnyGuru had published only one review that year and linked the slowdown to OklahomaWolf’s reported retirement. | Review activity had substantially declined by 2019; the explanation was a forum report. |
| February 3–4, 2021 | Reddit and HardForum users said the domain no longer worked. | The site was publicly unavailable by early February 2021. |
| April 21, 2021 | An AnandTech thread described the site as apparently dead and discussed lost reviews and incomplete archival coverage. | Users did not find a complete, navigable public restoration. |
| November 2021 | Users were still asking whether a full backup or mirror existed. | No publicly accessible official mirror was available to readers in that discussion. |
| December 2024 | HardForum users continued pointing to Wayback Machine snapshots. | Fragments remained available through archives, not through the live site. |
| April 11, 2026 | IPAddress.com reported a parking-page redirect for the domain. | The domain still was not serving the original site. |
What likely happened?
Well-supported observations
- Review output slowed markedly by 2019.
- The site was reported unavailable in February 2021.
- The domain was described as parked in April 2026.
Community explanations
Longtime forum users repeatedly identified OklahomaWolf’s reported 2018 retirement as a major turning point. Discussions also attributed the later failure to hosting and certificate arrangements being allowed to lapse. Those are community accounts, not an official JonnyGuru closure notice, and they do not prove who owned the hosting account, controlled backups or removed any files.
Rank #2
- 80 PLUS GOLD CERTIFIED
- 10-year limited warranty, guaranteeing long term reliable operation
- Fully modular design
- ATX 3.1 & PCIE 5.1
Jon Gerow and Corsair
Community discussions identify Jon Gerow, the person behind the JonnyGuru identity, as moving into industry work that included Corsair’s power-supply division. That could make independent reviews of competing products impractical because of obvious conflict-of-interest concerns. It remains an inference, however. The available sources do not prove that Corsair ordered the site closed or that Gerow’s employment directly caused its disappearance.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteDoes “gone” mean all the data was deleted?
No. Three different claims must be kept separate:
- The domain is unavailable: supported by the parked-page report.
- The original hosting files are unavailable to the public: consistent with the site no longer being served.
- Every original file was irretrievably destroyed: not established.
The Internet Archive captured portions of the site, but users reported missing images, broken navigation and incomplete coverage of the PSU review database. An archived homepage does not imply that every review, chart or forum page was saved. A later forum discussion also pointed to JonGerow-linked material outside the main domain, including a page containing a JonnyGuru-related PSU review (Overclockers UK). No complete, official, searchable mirror is publicly available.
Rank #3
- Delivers 600W Continuous output at plus 40℃. Compliance with Intel ATX 12V 2. 31 and EPS 12V 2. 92 standards
- 80 PLUS Certified – 80% efficiency under typical load. Power good signal is 100-500 millisecond
- Supports (2) PCI-E 6 plus 2pin Connectors. Active (PFC) Power Factor Correction, MTBF: 100, 000 hours
- Industry Grade Protections: (OPP) Over Power Protection, (OVP) Over Voltage Protection, (SCP) Short Circuit Protection
- Hold up time is 16 millisecond minimum within 60 percent load. Input frequency range 50 - 60 in Hz
How to look for an old JonnyGuru review
- Search the exact PSU model number together with
JonnyGuru. Include revision identifiers, wattage and regional suffixes. - Copy any old review URL found in search results, forum posts or personal bookmarks.
- In the Internet Archive, try both
http://www.jonnyguru.com/andhttps://www.jonnyguru.com/. - Test the root domain, review-index pages, forum pages and individual product URLs separately. An index capture may exist even when a product page does not.
- Check archived images and chart URLs independently. Missing CSS or images can make a captured review look incomplete.
- Save recovered charts and specifications for personal reference, then cross-check the exact unit against newer testing and revision information.
Expect HTTP/HTTPS mismatches, links that return to the parked domain, missing images, incomplete forum formats and product pages whose original URL structure is unknown. Search-engine snippets are clues, not substitutes for the underlying test data.
How much weight should an archived review carry today?
A recovered review can provide valuable historical evidence, but it describes a particular sample under particular test conditions. Before relying on it for a current build, check:
Rank #4
- Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
- Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU.
- Keeps Quiet: A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
- 105°C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance.
- Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
- Exact revision: the same model name can conceal a changed platform or component set.
- OEM versus retail version: visually similar units may have different internals.
- Regional variant: input voltage, certification and component sourcing may differ.
- Age and storage: capacitors and other parts degrade over time.
- Current hardware: modern graphics cards can have transient and connector requirements that did not exist when the test was run.
- Cables: modular PSU cables are not universally interchangeable; never mix them without verified compatibility.
- Warranty and condition: an old unit may have little support remaining or may have been modified.
Do not treat the absence of a current JonnyGuru page as evidence that an old PSU is safe. It is an archival problem, not a product-quality verdict. Wattage alone is not proof of suitability, and a reputable brand can sell both strong and weak models.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWhat to use instead
No current source is a direct restoration of JonnyGuru’s archive, methodology or forum. For new research, readers commonly use:
Best Value
- Delivers 500 Watt Continuous output at plus 40 degree. Compliance with Intel ATX 12 Volt 2.31 and EPS 12V 2.92 standards
- 80 PLUS Certified, 80 percentage efficiency under typical load
- Supports (2) PCI E 6plus2pin Connectors. Active (PFC) Power Factor Correction, MTBF: 100,000 hours
- Industry Grade Protections: (OPP) Over Power Protection, (OVP) Over Voltage Protection, (SCP) Short Circuit Protection
- High Quality Components
| Resource type | Examples | Best use |
|---|---|---|
| Detailed laboratory reviews | TechPowerUp’s power-supply reviews; Tom’s Hardware PSU coverage; Hardware Busters | Electrical results, thermals, noise, protections and construction for a tested sample. |
| Tier lists and buyer guides | ZTT Builds’ PSU tier-list resources | Quick screening when a full review is unavailable; verify the exact model and revision. |
| Community recommendations | Hardware forums and buying discussions | Finding revision notes, ownership history and leads to primary testing. |
| Manufacturer specifications | The PSU maker’s product page and manual | Connectors, ratings and warranty terms; not independent proof of electrical quality. |
Use a tier list as triage, not as a substitute for testing the exact model. The same model-specific rule applies whether the source is a review, a forum recommendation or a manufacturer specification sheet. One current discussion of PSU selection makes the same point while listing modern review resources (Ars Technica OpenForum).
Why independent technical archives are fragile
JonnyGuru’s story illustrates how a specialist archive can depend on a small number of reviewers, a particular host and a domain registration. When publishing slows, a certificate or hosting arrangement lapses, and no public mirror is maintained, a large body of practical testing can become difficult to reach even if copies survive elsewhere.
For used-PC buyers, the consequence is practical: old PSUs still need model-specific evidence, while brand reputation and wattage labels remain inadequate substitutes. For hardware historians, the surviving fragments are useful but incomplete. “Gone from the web” therefore should not be confused with “every byte was destroyed.”
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
