APC Pro 1500 UPS Problem - Computer Power Supply Buzzing on Battery Backup

jonbam

jonbam

Enthusiast
APC Pro 1500 UPS Problem - Computer Power Supply Buzzing on Battery Backup



Hi


When I test my ups by turning the power off, my computer Power Supply starts buzzing on Battery Backup (the ups also starts beeping). I have a UK tech support number for APC. Can't call them until Monday.

Will this damaged my computer power supply/motherboard ?

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Case COOLERMASTER HAF 912 PLUS MID TOWER GAMING CASE

Processor (CPU) Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache

Motherboard ASUS® P8Z77-V LX: USB 3.0, SATA 6GBs, ATI®CrossFireX

Memory (RAM) 8GB SAMSUNG DUAL-DDR3 1600MHz (2 X 4GB)

Graphics Card 2GB NVIDIA GEFORCE GTX 670 - 2 DVI, HDMI, DP - 3D Vision Ready

Memory - 1st Hard Disk 120GB KINGSTON HYPERX 3K SSD, SATA 6 Gb/s (upto 555MB/sR | 510MB/sW)

2nd Hard Disk 2TB WD CAVIAR BLACK WD2002FAEX, SATA 6 Gb/s, 64MB CACHE (7200rpm)

1st DVD/BLU-RAY Drive 12x BLU-RAY WRITER DRIVE, 16x DVD ±R/±RW

Power Supply CORSAIR 650W ENTHUSIAST SERIES™ TX650 V2-80 PLUS® BRONZE (£69)

Processor Cooling Super Quiet 22dBA Triple Copper Heatpipe Intel CPU Cooler (£19)

Sound Card ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)

Network Facilities 10/100/1000 GIGABIT LAN PORT - AS STANDARD ON ALL PCs

USB Options 2 PORT USB 3.0 INTERNAL PCI-EX CARD + STANDARD USB PORTS

Modem NONE, I WILL BE USING BROADBAND

Operating System Genuine Windows 7 Home Premium 64 Bit w/SP1 - inc DVD & Licence (£79)

Office Software NO OFFICE SOFTWARE

Anti-Virus NO ANTI-VIRUS SOFTWARE

Monitor Samsung SyncMaster S24A450B 24" - 1920 x 1080, 5MS, DVI-D (£179)

Keyboard & Mouse LOGITECH® K200 USB MEDIA KEYBOARD (£10)

Mouse LOGITECH® OPTICAL USB MOUSE (£5)

Speakers LOGITECH S120 2.0 BLACK SPEAKER SYSTEM (£9)

thanks

Jonathan
 
jonbam

jonbam

Enthusiast
Hi

I have been reading the corsair forum, am I allowed to link to it?

I quote: With some UPS backups you will get buzzing with high efficiency PSU's. This will not damage any of the components in the system.

I'm also going to ring APC tomorrow and see what they say about the matter.

Jonathan
 
jonbam

jonbam

Enthusiast
Hi

Feedback from APC, they say my Pro 1500 UPS (£269) doesn't produce a Pure Sine Wave Signal.
I was told the buzzing will not harm my CORSAIR 650W power supply.

If I want a UPS that doesn't buzz the computer power supply I need to buy the: SMT1500I APC SMT1500I 980W Smart Uninterruptible Power Supplies - £430.79 (produces a pure sine wave signal).

Jonathan
 
Last edited:
P

PokerFace

Banned
At that price difference I guess you'll have to put up with the buzzing. I hope it's not too annoying for you. Have some rep for the info.

BTW, does having that melon helmet help reduce the sound of the buzzing much? ;)
 
jonbam

jonbam

Enthusiast
Hi

Just came back and turned my PC on, after about 5 to 10mins the PC Power Supply started buzzing and windows 7 froze, couldn't move my mouse cursor. Had to turn the power off on the UPS.

What options do I have?

thxs

Jonathan
 
Last edited:
jonbam

jonbam

Enthusiast
Phoned PCS support, advised that the 650W power supply was working ok.

APC support said to wait and see if the problem reoccurs.

Jonathan
 
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