Opteron 185 build- PSU pulsing

Waldoinsc · May 26, 2007

Just put together an upgrade (new Mobo-DFI Infinity RS482, PSU-Enermax NoisetakerII 600W, CPU-Opteron 185, video card-X1950XTX). When I plugged in the PSU after putting it all together, the PSU started pulsing on for half a second and off repeating about every 2 seconds :wtf:

.

Turning the PSU toggle switch off stops the cycle.

It looks to me like the Mobo is toggling the PSU, but how can I figure this out? Is the mobo bad? :eek:

or is there something else I can do?

Can anyone help me out?

Namslas90 · May 26, 2007

Remove the 1950,reset CMOS, and try getting it started with on-board video(if it has it,or another card if not), then add 1950 back into system. If that don't work then RMA the PSU(if new) It's probably bad.

Waldoinsc · May 27, 2007

no joy!

pulled the VC out, used onboard video, reset CMOS, and ...nothing new

...the system still pulses on and off as before. I have another smaller PSU I can try to get it running without the XTX installed. Hopefully it is the PSU and not the mobo.

Thanks for the help.

DrunkenMafia · May 27, 2007

yeah try another psu mate... that sounds like the problem, have you definitely got all the power cables hooked up correctly??? double check them too, even the best of us forget simple things sometimes.... :rockout:

Waldoinsc · May 27, 2007

Everthing looks correct...ATX 12V 4-pin , & 24-pin mobo pwr...SATA power, IDE pwr.....

I'm switching out the PSU

keakar · May 27, 2007

disconnect everything then jumper the PSU to start it up, that will confirm

Waldoinsc · May 27, 2007

I swapped back in the 460W TT purepower from the original build. When the power button is pushed, it would start to power up for about 2 seconds, then shutdown. :banghead:

At least the pulsing didn't occur, but the system won't POST.

I tried the 600W PSU with a known good setup, and nothing....it's dead...RMA time for the Enermax. Fortunately NEWEGG is great about these issues.

I don't understand why I can't get a POST to occur. All that is required, I believe, is the mobo, CPU, RAM, HDD, display, keyboard, and power....the BIOS should initiate the rest. The mobo and CPU are the only new items now....does that mean the mobo is shot also?

Waldoinsc · May 28, 2007

OK Keakar, I now agree with your tag on the bottom of your post....I should have left well enough alone. :ohwell:

The old build ran fine (Athlon 64 3700+), and still had pretty good graphics (AGP X800 GTO OC'd). I forgot something I learned about the Q-Pack case building that system....the Front Panel connectors are wired backward.

Sometimes watching your indications closely helps alot! As I attempted to start the system, I noticed the HDD and Power LED's were not lighting, though I could hear the HDD spin up. I rotated the power LED connector 180 degress, and viola, it lit...switched the rest of the F-panel connectors, and the system POST's! :roll:

This is using the 460W PSU. I'm fairly confident this also caused the original problem of the pulsing with the ENERMAX 600W PSU. I think I'm going to leave the 460W PSU installed.

I'll post updates after I get the system fully configured..I need to install the X1950 and load the OS yet.

Waldoinsc · May 29, 2007

Finished installing the OS (XP Pro), and all 4 hrs of updates. Installed CCC and ran 3DMark05. Stock timings and clocks resulted in a score of 11870 3Dmarks :twitch:

.....that is almost twice what my old system (Athlon64 3700+, X800GTO OC'd) scored (6340 3Dmarks). I'll play with the OC and ATITool this week. I want to see what this rig will really do. I'd like to get a 24" widescreen and run 1920x1200 for Oblivion, C&C3, and SC2 when its released. :toast:

mandelore · May 29, 2007

Waldoinsc said:
I'd like to get a 24" widescreen and run 1920x1200 for Oblivion, C&C3, and SC2 when its released.

I have a nice 24" widescreen, and play all games at 1920x1200, have to say its just the beez kneez mate. oblivion roxors at that rez

keakar · May 30, 2007

Waldoinsc said:
OK Keakar, I now agree with your tag on the bottom of your post....I should have left well enough alone. The old build ran fine (Athlon 64 3700+), and still had pretty good graphics (AGP X800 GTO OC'd). I forgot something I learned about the Q-Pack case building that system....the Front Panel connectors are wired backward.

Sometimes watching your indications closely helps alot! As I attempted to start the system, I noticed the HDD and Power LED's were not lighting, though I could hear the HDD spin up. I rotated the power LED connector 180 degress, and viola, it lit...switched the rest of the F-panel connectors, and the system POST's! This is using the 460W PSU. I'm fairly confident this also caused the original problem of the pulsing with the ENERMAX 600W PSU. I think I'm going to leave the 460W PSU installed.

I'll post updates after I get the system fully configured..I need to install the X1950 and load the OS yet.

the pulsing was the protection circuits shutting down before things got smoked lol.

be glad you had a protected PSU or you may have set off smoke alarm.

Processor	Athlon II X4 945 (AM3)
Motherboard	MSI NF725GM-P43 micro
Cooling	stock
Memory	8GB G.Skill Ripjaw (DDR3-1066)
Video Card(s)	EVGA 9600GT
Storage	Vertex 2 60GB SSD, WD 250GB Cavair
Display(s)	Dual Asus 22"
Software	Win7 (32 bit)

Processor	Athlon II X4 945 (AM3)
Motherboard	MSI NF725GM-P43 micro
Cooling	stock
Memory	8GB G.Skill Ripjaw (DDR3-1066)
Video Card(s)	EVGA 9600GT
Storage	Vertex 2 60GB SSD, WD 250GB Cavair
Display(s)	Dual Asus 22"
Software	Win7 (32 bit)

System Name	GaMEr / HTPC
Processor	FX8320 4.5ghz so far NB- 2815mhz / X2 255 @ 3.2ghz (Temp till BD)
Motherboard	990FX-UD5 / GA-MA785GPMT-US2H
Cooling	XSPC - 240rad 480rad 5 x 120mm out, 6 x 80mm in / H220-edge 1/2" & 2 x 120mm Magma
Memory	4gb PI 6,8,6,18 1T 1706mhz / 4gb Crucial D9's 1400 @ 6,6,6,18,1T
Video Card(s)	3gb HD7950 / Onboard
Storage	2 x 120gb Sandisk ultra plus 2tb WD / 60gb vertex 2 + 2 x 2tb WD Greens
Display(s)	3x24in Dell Ultra (portrait) / NEC 32" FullHD LCD
Case	LL PC71A Full tower / Antec fusion black with Imon remote Modded for WC
Audio Device(s)	OB / Auzentech cinema 7.1
Power Supply	TT 700w TR2 / TT 600w Litepower modded with Noctua S12 fan.
Software	7 Ult / 7 premium x64

Processor	Athlon II X4 945 (AM3)
Motherboard	MSI NF725GM-P43 micro
Cooling	stock
Memory	8GB G.Skill Ripjaw (DDR3-1066)
Video Card(s)	EVGA 9600GT
Storage	Vertex 2 60GB SSD, WD 250GB Cavair
Display(s)	Dual Asus 22"
Software	Win7 (32 bit)

Processor	Intel Core i7-4790 Haswell Quad-Core 3.6GHz LGA 1150 84W
Motherboard	GIGABYTE GA-H87-D3H LGA 1150 Intel H87 HDMI
Cooling	CPU - Cooler Master Hyper T4 / Case - cooler master 120mm rear case fan (Air cooling)
Memory	32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card(s)	GTX1060 6GB
Storage	Samsung 512 GB 840 PRO SSD Main Drive and Samsung 512 GB 840 EVO SSD Backup Drive
Display(s)	ASUS 23" LED Monitor
Case	COOLER MASTER Centurion 5 (silver & black)
Audio Device(s)	(onboard audio) Realtek ALC892
Power Supply	CORSAIR SU-750TX 750W ATX12V / EPS12V
Software	Windows 10 Home Premium 64bit Edition

Processor	I9 9900KS @ 5.3Ghz
Motherboard	Gagabyte z390 Aorus Ultra
Cooling	Nexxxos Nova 1080 + 360 rad
Memory	32Gb Crucial Balliastix RGB 4.4GHz
Video Card(s)	MSI Gaming X Trio RTX 3090 (Bios and Shunt Modded) 2.17GHz @ 38C
Storage	NVME / SSD RAID arrays
Display(s)	38" LG 38GN950-B, 27" BENQ XL2730Z 144hz 1440p, Samsung 27" 3D 1440p
Case	Thermaltake Core series
Power Supply	1.6Kw Silverstone
Mouse	Roccat Kone EMP
Keyboard	Corsair Viper Mechanical
Software	Windows 10 Pro

Opteron 185 build- PSU pulsing

New Member