Zalman TeraMax II 850W 80+ Gold Certified Power Supply - ATX 3.0 / PCI-E 5.0 - Fully Modular PSU - Ultra Quiet 120mm FDB Fan - 105°C Japanese Capacitors - SLI & AMD Crossfire Supported, White
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Size: 850W
Color: White
Features
- Fully modular design for easy installation and maintenance
- Intel ATX Ver3.0 type and active PFC for stable and efficient power delivery
- Ultra-quiet 120mm FDB fan with FDB bearing for silent and efficient operation
- Includes 105C Japanese capacitors for reliable and long-lasting performance
- Supports both SLI and AMD Crossfire for high-performance gaming rigs and workstations
- Multiple protection circuit system for ultimate protection (OCP/OTP/OPP/OVP/UVP/SCP)
Brand: ZALMAN
Compatible Devices: Personal Computer
Connector Type: ATX
Output Wattage: 850 Watts
Wattage: 850 watts
Item Dimensions LxWxH: 5.51 x 5.91 x 3.39 inches
Power Supply Design: Full Modular
Fan Count: 1
Minimum Input Voltage: 115 Volts
Product Dimensions: 5.51 x 5.91 x 3.39 inches
Item Weight: 5.89 pounds
Manufacturer: Zalman Tech Co., Ltd
Date First Available: April 28, 2023
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Top Amazon Reviews
Size: 850W
Color: White
This review is for the Zalman TeraMax II 850W ATX 3.0 fully modular power supply featuring support for the 12VHPWR (12+4 pin) connector (Model: ZM850-TMX2, Color: White). I've been building PCs for longer than I'd care to admit, and while I've used Zalman cooling products before, this is the first time I've used a Zalman-branded power supply. Overall, this power supply exudes high quality and has test reports from reputable agencies to back it up. The ATX 3.0 specification highlights Cybenetics Lab's ETA efficiency and LAMDA noise testing methods, which this PSU has undergone. My only niggle with this unit is how Zalman doesn't provide any means for power budgeting. Since the ZM850-TMX2 has a single rail design and the included 12VHPWR cable is rated for the full 600W, this power supply can theoretically support the most power-hungry graphics cards to date. However, this isn't necessarily a good thing since, as an 850W PSU, if your overclocked GPU can reach 600W, you're only left with 250W for the rest of the system. An Intel i7-13700K has a TDP of 125W, but max turbo power can be as high as 253W, so unexpected restarts under heavy loads might occur. For those that don't know, the 12VHPWR connector has sideband signals that will communicate the PSU's maximum capability to the GPU, which can vary from as low as 150W up to 600W. Therefore, just because the PSU/GPU has the connector, it doesn't mean the 600W power level is available. I would have preferred Zalman give us the option to limit 12VHPWR to 450W, which would be nearly foolproof from a stability perspective when using non-HEDT components. In fact, the ATX 3.0 specification's arguably over-conservative "Power Budget Used for Peak Power Excursion Test Cases" states that a 750W PSU is only expected to supply 300W of PCIe add-in-card capability and a 1000W model only needs up to 450W. Notes: 1) According to the label, the power supply is manufactured by Shenzhen Jiumeng Electronics Technology Co, Ltd.
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Reviewed in the United States on November 1, 2023 by Terrance Terrance
Size: 850W
Color: Black
I installed this PSU into my desktop, although I’m currently not necessarily needing 850 watts. It’s great for future-proofing my system for when I upgrade my GPU to an Nvidia RTX 4000 series graphics card, it has the 12VHPWR connector that nvidia’s founder edition cards use (and all 4090 models use this connector). I’ve used Zalman products before, while they may not be as well known as some Power Supply brands, this is still a very high quality PSU with a cybernetics platinum rating for efficiency and A- rating for noise level. It’s also 80+ Gold, and fully modular, which is the only type of PSU that I would even use after having previously built my last system using this type of design. It’s just so much cleaner and allows for neater cable management, without having to deal with excess cablea that you aren’t even using like lots of SATA power connectors. I’ve had this installed in my current system with a 5800x3d/X570 motherboard/6700XT and after over 100 hours of gaming with my system pulling peak power, I haven’t experienced any issues with this power supply. It’s completely solid and reliable, while staying nice and quiet. I will update this review if anything changes or when I upgrade to a higher TDP graphics card that pulls more watts, but I’m happy with it for now.
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Reviewed in the United States on October 22, 2023 by BMO
Size: 850W
Color: White
Cybenetics ratings are more tightly controlled then other ratings systems (don't take my word for it, look it up) and this 850 watt PSU is Platinum rated. So I wasn't really worried my system would boot right up...which it did. Modular cables are where it's at for any good power supply, a really nice collection of cables are included along with a bag which I have now stuffed all my random modular cables into. The cables are white too. For out of the box cables these are nice, but if you are looking for those high end custom cables a separate kit may be needed. ATX 3.0 adds the 12 volt high power connector (12vhpwr) which this power supply has. The 12vhpwr connector also communicates power info to whatever it is connected to (GPU). This means that a well designed card (GPU) can now limit its power spikes if the power supply is under rated, the system can communicate this info to the user instead of the entire system just not booting, or crashing randomly, and it informs all of us on just how much power a hungry GPU can pull...which is a LOT. 850 watts is considered the minimum starting point for a high end system, if the system is going to have a high power, high end card(GPU) with a power hungry CPU in it then 1200 watts is where it is at. Ironically the high power rating is need to handle power spikes and not constant power supply. Also, ATX3.0 should help expensive cards (GPU) last better since it is less likely to overdraw the PSU causing system damage. (ie many bucks going down the toilet) Right now only a few cards out there have the 12vhpwr connector, but expect most cards to start shipping with it. So this power supply is pretty future proof. Part of the reason I gave this 5 stars is my experience with Zalman PSU's has been stellar, and they have a very good rep. My only gripe about this PSU is the metal fan protector is painted black on the white PSU...in my white case...with white cables...and a white gpu...with a white MB...and glass sides on the case...with lighting inside so we can all see the black fan cover.
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Reviewed in the United States on October 1, 2023 by Persnickety