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SILVERSTONE ST85ZF 850W ATX 12V 2.2 & EPS12V SLI Certified CrossFire Ready Active PFC SLI Certified Power Supply - Retail

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SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail
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SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail
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Manufacturer Warranty

Beyond any applicable Newegg return policy, this item is warranted independently by the product's Manufacturer. Below is a summary provided for convenience only and may not be accurate or current. Use this link for full details.

  • Manufacturer Limited Warranty period (parts): 3 years
  • Manufacturer Limited Warranty period (labor): 3 years

Manufacturer Contact Info

Return Policies

This item is covered by Newegg.com's Standard Return Policy.

  • Return for refund within: 30 days
  • Return for replacement within: 30 days
  • Restocking Fee: Yes
OverviewCustomer ReviewSpecificationsProduct Tour
The Silverstone ST85ZF power supply packs prime power and efficiency (around 80%!) in a compact unit. This PSU cranks up to 850 Watts of continuous power. It features a 24-pin motherboard connector, an 8-pin ATX12V connector, an 8-pin to 4-pin ATX12V adapter connector, a 6-pin AUX connector, four 6-pin PCI-E connectors, six SATA power connectors, six 4-pin IDE power connectors, and two 4-pin floppy power connectors, to wire up almost anything you can imagine.

Industrial class components deliver top-of-the-line performance. It features an 80 mm ball bearing fan, for quiet cooling. The Silverstone ST85ZF is capable of supporting ATX 12V 2.2 and EPS12V. The Quad +12V rail ensures superior performance, with independent and reliable power to both your CPU and video cards.

A 24-Pin main connector, and SLI support round out the mix. The over voltage protection feature provides protection from electrical surges. This power supply from Silverstone has an MTBF of 100,000 hours. Plug it in and run it as hard as you like! It'll keep putting out all the power you need!

Review Summary (read more reviews)

5
newegg
52%
4
newegg
12%
3
newegg
4%
2
newegg
8%
1
newegg
24%
Product Rating:
Total Reviews: 25

Suprising performance

white Reviewed By: ftc3048 on 10/19/2006
Rating + 1
Tech Level Tech Level: somewhat high - Ownership: 1 day to 1 week
This user purchased this item from Newegg
Pros: Uses very little power. In fact, none.
Cons: "Power Supply" is a bit of a misnomer since it does not actually "supply" any "power" to anything. "Decorative Paperweight Sporting Colored Wires" would help the still undecided shopper.
Other Thoughts: Mine arrived DOA. I realize Newegg doesn't actually have much control over this, but they ARE the customer-facing entity and they are bearing the brunt of my dissatisfaction. Newegg's only hope of redemption is that a replacement arrives in an unbelievably short amount of time.

By the way, I harbor no illusions that this review will ever see the light of day. I just felt it my duty to let you know how let down I feel. Sincerely yours.
12 out of 75 people found this review helpful. Did you? Yes No

Reliable Power

white Reviewed By: Aleksandr on 9/9/2006
Rating + 4
Tech Level Tech Level: somewhat high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: Very powerful. 850 Watts will power even the most demanding workstations. Good efficiency (80+%), good hold up time, and active electricity spike protection provide reliability. The unit runs pretty cool and quiet. A lot of connection types for good compatibility.
Cons: Compatibility is good but not perfect. Some MoBos (e.g. SuperMicro) require a 24 pin, an 8 pin AND a 4 pin connector. With this PSU you can't connect both 8-pin and 4-pin at the same time so you end up with a compatibility problem. I had to rewire the 6-pin connector into a 4-pin to solve the problem, however I wish I didn't have to.
The customer support leaves much to be desired. When I called the technical support didn't even know the meaning of abbreviations in the manual!
Other Thoughts: If you are looking for an EPS PSU unit then this is a very good value. However make sure that your motherboard does not require both 8-pin and 4-pin to be connected. If that's the case this is the wrong power supply to get, unless you really enjoy cutting and welding wires. However when everything is compatible this is a very good PSU. I am running 2 duel core CPUs a 7950 GX2, 2 HDs, 2 optical drives, and a load of fans on it and I have power to spare.
7 out of 9 people found this review helpful. Did you? Yes No

Quick Specs (view all30)

ModelST85ZF
TypeATX12V / EPS12V
Maximum Power801 - 900W
Fans1
PFCActive

Review Summary (read all 25 Reviews)

5
newegg
52%
4
newegg
12%
3
newegg
4%
2
newegg
8%
1
newegg
24%
Product Rating:
Total Reviews: 25

Work Horse

white Reviewed By: GreenMartian on 11/15/2008
Rating + 5
Tech Level Tech Level: high - Ownership: more than 1 year
This user purchased this item from Newegg
Pros: I have lots of watt hungry accessories and the power supply handles it with ease. Nice cables, etc.
Cons: I can't think of any.
Did you find this review helpful? Yes No

Amazing PSU

white Reviewed By: Goku on 8/26/2008
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: Only one thing to say about this PSU.. its AWESOME!!. Amazing performance and safety measures from this PSU. Have been using this PSU for abt 8months now and im glad I made this purchase :). Recently about 6 months ago, my comp wasnt booting and I was worried abt what the prob was.. the cpu used to fire up and then die again.. I tot it was a prob with the psu, but in the end it turned out that my old SLB cabby had one of the front usb ports touching the metallic part and hence creating a short. The PSU has been built to handle it in such a way that if there is a short being created then it doesnt power up the rig so as to protect the components. This one feature saved my entire rig. There are many more features and reviews too that suggests that this is one hell of a purchase :D.
Cons: NONE WHATSOEVER
Did you find this review helpful? Yes No

One of my best PSU purchases ever.

white Reviewed By: GoatCheez on 6/21/2008
Rating + 5
Tech Level Tech Level: high - Ownership: more than 1 year
This user purchased this item from Newegg
Pros: I've been using this PSU for over a year and I have absolutely no complaints. It was $289.99 when I purchased it. I had 2 raptors, 5 7.2k drives, 2 dvd-rw drives, a floppy, a 7800 gtx, a tornado fan and about 5 other case fans when I purchased this. The voltages were as rock solid then as they are now. The PSU hasn't hiccuped or skipped a beat. I think I might be a silverstone fan for life.
Cons: Absolutely none
Other Thoughts: I see that some people had their PSU arrive DOA or close to it. Don't let that be a deterrent. Shipping can do numbers to ANY product regardless of the quality of the product or packaging. Mine happened to arrive fine. As long as you get one that works you will not be disappointed.
1 out of 1 people found this review helpful. Did you? Yes No
Model
Brand SILVERSTONE
Model ST85ZF
Spec
Type ATX 12V 2.2 & EPS12V
Maximum Power 850W
Fans 80mm ball bearing fan
PFC Active
Main Connector 24Pin
+12V Rails 4
PCI-Express Connector 4 x 6-Pin
SLI Certified
CrossFire Ready
Modular No
Efficiency > 80%
Over Voltage Protection Yes
Input Voltage 100 - 240 V
Input Frequency Range 47 - 63 Hz
Input Current 14A @ 115V, 7A @ 230V
Output +3.3V@28A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+12V4@18A,-12V@0.5A,+5VSB@3.0A
MTBF >100,000 Hours
Approvals cUL, CE, TUV, FCC
Features
Connectors 1 x Main connector (24Pin)
1 x 12V(P4)
1 x 12V(8Pin)
6 x Peripheral
6 x SATA
2 x Floppy
4 x PCI-E
Features lead-free paint (RoHS)
Noise Level: 24 dBA minimum
Operating temperature: 0 ~508C
+3.3V & 5V: 180W Max.
Combined + 12V: 70A/840W
Class-leading continuouns 70A Quad + 12V combined output @ 50 *C
Manufacturer Warranty
Parts 3 years limited
Labor 3 years limited

Introduction

The Silverstone ST85ZF power supply packs prime power and efficiency (around 80%!) in a compact unit. This PSU cranks up to 850 Watts of continuous power. It features a 24-pin motherboard connector, an 8-pin ATX12V connector, an 8-pin to 4-pin ATX12V adapter connector, a 6-pin AUX connector, four 6-pin PCI-E connectors, six SATA power connectors, six 4-pin IDE power connectors, and two 4-pin floppy power connectors, to wire up almost anything you can imagine.

Industrial class components deliver top-of-the-line performance. It features an 80 mm ball bearing fan, for quiet cooling. The Silverstone ST85ZF is capable of supporting ATX 12V 2.2 and EPS12V. The Quad +12V rail ensures superior performance, with independent and reliable power to both your CPU and video cards.

A 24-Pin main connector, and SLI support round out the mix. The over voltage protection feature provides protection from electrical surges. This power supply from Silverstone has an MTBF of 100,000 hours. Plug it in and run it as hard as you like! It'll keep putting out all the power you need!

Highlights

newegg ATX12V v2.2 and EPS12V Compatible
Compatible with the ATX12V v2.2 and EPS12V standards, the SILVERSTONE ST85ZF provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and entry-level server computer systems.
newegg 850W Maximum Power
A maximum power of 850W delivers safe, reliable output for ultra high-end computer systems.
newegg Highly Efficient
Delivering up to 80% efficiency, the SILVERSTONE ST85ZF saves energy and may even reduce your electric bill!
newegg Intelligent Black Cable Sleeving
This power supply's cables are wrapped in black sleevings to optimize air flow and improve cooling in the case.
newegg NVIDIA SLI Certified
The SILVERSTONE ST85ZF has gone through a series of rigorous NVIDIA SLI certification tests for maximum system stability when building NVIDIA SLI PCs.

Photo Gallery

SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail
SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail SILVERSTONE ST85ZF 850W SLI Certified Power Supply - Retail

Quick Specs

TypeATX12V / EPS12V
Maximum Power801 - 900W
Input Voltage100 - 240 V
Main Connector24Pin
+12V Rails4
Fans1
PFCActive
SLICertified
Over Voltage ProtectionYes
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