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New system build....2 beeps no video, bad PSU?


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#1 Babyflitestreak

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Posted 20 January 2010 - 03:36 PM

A week ago I purchased some new components...MSI GF615M-P33 motherboard, AMD Athlon II X3 CPU, single stick Crucial 2GB DDR3 RM25664BA1339, and Western Digital 500GB harddrive b/c I thought the motherboard died. I reused the power supply (Antec Smartpower 2.0 500W...bought back in '04, this would have been comp #4 for it) and the case.

I plugged up the system (outside the case, on a wood table), cleared CMOS using the jumper, turned it on and got 2 beeps, no video. The CPU fan and case fan spin, LED power indicator on the motherboard light up but no active HDD light. I checked the HDD by temporarily installing it in an external enclosure and hooked it up by USB to the computer I'm using right now, powered up ok and was recognized by my computer.
I tried reseating the RAM and also using the other slot. It doesn't matter, same thing happens. The CMOS was reset each time. The next day I took the assembly (mobo, RAM, CPU) back to the shop to have them test it. It booted up fine for them. ...so I took it back home, reinstalled in the case, and the same thing kept happening. I shorted the pins on the mobo connector and tested with a multimeter and all were within spec. Didn't do a load test b/c I didn't want to fry the new motherboard.
The fans on the power supply don't spin at all when I turn it on but if I remember correctly this PSU was like that when new because it controls the fans itself.

Now for some history:
The computer that was using this power supply died with the same symptoms so I just assumed it was the motherboard. ...but now I'm not so sure since I have a new board, CPU, and ram which check out ok at the shop.

So...would I be correct in thinking that this is a bad power supply?

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#2 hamluis

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Posted 20 January 2010 - 04:25 PM

Continuity in use of components...is usually key when attempting to analyze a system problem where various other components have been changed out.

'04 was 6 years ago. A PSU can last that long, but I would not trust it as a main (only as a temporary backup). I would have suspected it long before I considered a motherboard...testing a suspicion re a PSU is a lot easier than testing one about a motherboard.

A simple temporary substitution of the PSU should provide some clarity. Takes about 5-10 minutes to unscrew those 4 screws, undo connections and then do the reverse with the temp replacement.

As for the 2 beeps...looking up the BIOS beep codes for your motherboard...will give you that answer, http://forum.msi.com.tw/index.php?topic=86906.0. But bear in mind that there may not necessarily be a beep code for a failing PSU.

Louis

#3 Babyflitestreak

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Posted 26 January 2010 - 03:08 AM

Well, it turned out to be a bad LCD monitor. :thumbsup: This is the first one of these I've owned. I didn't expect it to be the problem because it's only 3 years old and didn't know they had a shorter life span that the old CRT screens. Anyway, the computer works great and is hooked up to the spare CRT monitor that was just lying around the house.

#4 the_patriot11

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Posted 26 January 2010 - 04:28 AM

the monitor may be bad, but it wouldn't cause any beep codes. according to that link ham gave you, 2 beeps is a parity error which normally indicates either the memorys not inserted properly or its bad. the bios has no way of knowing the LCD monitor is bad.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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