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JonnyGuru’s power-supply review output had become sparse by 2019, and forum users described the review operation as effectively over by 2021. A report published in 2026 says the domain no longer serves the review site. There is no confirmed closure date or official explanation, so the clearest answer is that JonnyGuru appears to have wound down rather than that a documented shutdown was announced.
How JonnyGuru’s review activity changed
By 2019, readers had noticed a sharp slowdown
On October 13, 2019, an AnandTech Forums user observed that JonnyGuru had published just one review so far that year, in April. That is a contemporaneous reader’s count, not an independently verified total for the site. The thread captures the question of whether the site was getting out of reviewing power supplies: the 2019 AnandTech discussion.
In 2021, forum users called the operation effectively over
On February 3, 2021, users on [H]ard|Forum described the site as dead and said the last person involved in its PSU reviews had retired. Those posts are community accounts, not an official announcement from JonnyGuru or its operator: the [H]ard|Forum discussion.
Another AnandTech thread from 2021 discusses the site’s apparent loss as a live destination and the difficulty of finding complete, usable Wayback Machine captures. It supports the conclusion that readers lacked an easy-to-navigate archive; it does not establish that every copy of the material was lost: the 2021 AnandTech archive discussion.
#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
A 2026 report says the domain no longer serves the review site
An iTechGuides article dated September 30, 2026 says Jonnyguru.com is effectively gone as a live review site and reports that a domain-status service saw it redirect to a parking page in April 2026. The article itself was not directly retrievable, so this account rests on its search-indexed excerpt. A parked domain means the original review service was not being delivered at that address at the reported time; it does not prove private backups were destroyed: iTechGuides’ 2026 account of what happened to JonnyGuru.
What is—and is not—known about why it wound down
Forum commenters linked the decline to Jeremy Schrag, known as OklahomaWolf, retiring from PSU reviews, and to Jon Gerow’s work in the PSU industry at Corsair. A [H]ard|Forum contributor said Gerow had handed review work to Schrag and that Schrag retired in 2018; similar claims appeared in the AnandTech discussion. These are plausible community explanations, but the sources do not confirm a definitive chain of events.
Rank #2
- 80 PLUS GOLD CERTIFIED
- 10-year limited warranty, guaranteeing long term reliable operation
- Fully modular design
- ATX 3.1 & PCIE 5.1
A 2018 GamersNexus interview identifies Gerow with JonnyGuru and Corsair, and describes the beginning of GamersNexus’s own detailed PSU testing. It provides industry context, not evidence that Corsair caused JonnyGuru to stop reviewing, restricted its reviews, or made the site close: the GamersNexus interview with Jon Gerow.
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No official closure announcement or current statement from Gerow appears in these sources. They also do not establish exactly what happened to every archived copy of the old reviews.
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
Can you still read JonnyGuru’s old PSU reviews?
Some historical material may survive in web archives, but the 2021 discussion documents incomplete captures and the lack of a convenient, complete archive. The available accounts do not verify a full collection or guarantee that a particular review can still be retrieved. If looking for an old review, search for its title or the PSU model alongside “JonnyGuru” and check available archived snapshots; treat missing pages as unavailable, not proof that no copy exists.
Quick Recap
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
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.
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