[SOLVED] psu blinking but no life on power up

gallup · 09-11-2008, 08:17 PM

First I have seen of this. Push the on switch and nothing but blinking psu light. Even after unplugging power, flashing light on outside of psu stays flashing for an unusually long while. Normally light comes on and fades out when powered down or unplugged.
Tested psu with my psu tester and it tests good, but occasionally when plugging it in slow due to the plug being a tight fit, and me being graceful, the PG time is a bit long and alarm sounds on tester. Re-do and PG time is fine for several more tries.
All voltages test spot on, not even marginal. I ordered a new mobo and same story. MoBo was in a slightly manhandled usps box, but all looked ok. I have tried removing everything but one stick of memory. Maybe psu anyway?

One of my favorite links:
How to Bench Test Your System

I suppose I'll have to dig through the junk heap for a good one just to see. Ideas? Always good ones here, that's why I'm postin again.

cheers,
Mike

Tumbleweed36 · 09-11-2008, 08:22 PM

Please list your specs including motherboard, video card, motherboard, memory, and the make and model of your power supply.

gallup · 09-12-2008, 06:33 AM

Compaq Presario sr1230nx amd athlon xp 3200+ /512MB pc2700 ram /160GB ide hdd /ce-rom
Customer has added a bfg nvidia 5500 256MB video card with stock psu rated at 250 watts by bestech. Mobo is an a7v8x-la stock board I believe by asus.

My first thought was that this was stressing the psu to much and removed that first. You read the rest. I am thinking of trying an old psu that is also a 250 watt unit that is good. I formerly changed this one out for someone that wanted to upgrade their pc with an antec 480 earth watts or some name like that. I am going to recommend that this individual do the same as well as add another stick of ram.

gallup · 09-13-2008, 06:08 PM

Got it up and running.
Bad PSU that tested good!
Must be the slow PG test on occasion. Just thought perhaps I wasn't getting the cord plugged into the psu fast enough to get a good test. I'll have to keep a spare psu around from now on.
I'll mark it solved.

Tumbleweed36 · 09-13-2008, 08:03 PM

Glad things worked out for you. Enjoy the rest of the weekend.

09-11-2008, 08:17 PM	#1 (permalink)
gallup Registered User Join Date: Oct 2007 Location: Missouri, USA Posts: 81 OS: M$ xpsp3, PCLinuxOS, Puppy Linux	[SOLVED] psu blinking but no life on power up First I have seen of this. Push the on switch and nothing but blinking psu light. Even after unplugging power, flashing light on outside of psu stays flashing for an unusually long while. Normally light comes on and fades out when powered down or unplugged. Tested psu with my psu tester and it tests good, but occasionally when plugging it in slow due to the plug being a tight fit, and me being graceful, the PG time is a bit long and alarm sounds on tester. Re-do and PG time is fine for several more tries. All voltages test spot on, not even marginal. I ordered a new mobo and same story. MoBo was in a slightly manhandled usps box, but all looked ok. I have tried removing everything but one stick of memory. Maybe psu anyway? One of my favorite links: How to Bench Test Your System I suppose I'll have to dig through the junk heap for a good one just to see. Ideas? Always good ones here, that's why I'm postin again. cheers, Mike Last edited by gallup; 09-11-2008 at 08:24 PM.

09-11-2008, 08:22 PM	#2 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,656 OS: XP Professional	Re: psu blinking but no life on power up Please list your specs including motherboard, video card, motherboard, memory, and the make and model of your power supply. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

09-12-2008, 06:33 AM	#3 (permalink)
gallup Registered User Join Date: Oct 2007 Location: Missouri, USA Posts: 81 OS: M$ xpsp3, PCLinuxOS, Puppy Linux	Re: psu blinking but no life on power up Compaq Presario sr1230nx amd athlon xp 3200+ /512MB pc2700 ram /160GB ide hdd /ce-rom Customer has added a bfg nvidia 5500 256MB video card with stock psu rated at 250 watts by bestech. Mobo is an a7v8x-la stock board I believe by asus. My first thought was that this was stressing the psu to much and removed that first. You read the rest. I am thinking of trying an old psu that is also a 250 watt unit that is good. I formerly changed this one out for someone that wanted to upgrade their pc with an antec 480 earth watts or some name like that. I am going to recommend that this individual do the same as well as add another stick of ram.

09-13-2008, 06:08 PM	#4 (permalink)
gallup Registered User Join Date: Oct 2007 Location: Missouri, USA Posts: 81 OS: M$ xpsp3, PCLinuxOS, Puppy Linux	Re: psu blinking but no life on power up Got it up and running. Bad PSU that tested good! Must be the slow PG test on occasion. Just thought perhaps I wasn't getting the cord plugged into the psu fast enough to get a good test. I'll have to keep a spare psu around from now on. I'll mark it solved.

09-13-2008, 08:03 PM	#5 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,656 OS: XP Professional	Re: [SOLVED] psu blinking but no life on power up Glad things worked out for you. Enjoy the rest of the weekend. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.