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post #21 of 63
DMM is a digital multimeter. You can get one from Harbor Freight Tools for $4; or the same thing with a different branding from Walmart or a hardware store for $10-$20. There are nicer ones, but you just need something bare bones.
post #22 of 63
Thread Starter 
Hmm.. I'll think about it (+rep for the tip and clarification)

Still.. I was wondering..

If the native PCI connector is that "bad" (and some saying it might "kill" my 5870) then how come my 4870 is still working well with just the converters?

Just to clarify.. I did use the native PCI connectors, didn't work with several combinations.. and settled with my current situation (molex to pci converters powering my 4870).. I still have a "living" 4870..

Sorry if I am confusing you guys xD

Maybe another form of explanation would help?

Here let me try:

More than 6 months ago:

> 2x native 6 pin connectors from PSU + 4870 = WORKS

Tried to diagnose an old PC:

> used the old PC's NV GF 6200 (no ext. power needed) in my sig rig = WORKS

> placed back old PC's NV GF 6200 = DOESN'T WORK (still didn't so I though the GPU of the old PC wasn't the problem)

> placed my 4870 on the old PC that IIRC, had 300-350 watt no brand PSU = WORKED for about 5 mins (I got into Windows, Desktop and browsed some folder) BUT suddenly the PC crashed.. it shat down completely.. black screen and power turned off.

> placed my 4870 BACK to my sig rig with the native PCI connectors = DOESN'T WORK

(red lights on video card [wonder what that means], GPU fan ramps very high, no screen output, no HDD activity)

> used molex to PCI converters with 4870 = WORKS!

WEIRD! Any way to make sense out of what happened? Please?

I would really appreciate it xD
Edited by tubers - 2/26/11 at 11:59pm
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post #23 of 63
If you want a great PSU get a OCZ ModxStream2 they are like 80 bucks at microcenter and newegg.
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post #24 of 63
Quote:
Originally Posted by PapaSmurf View Post
According to JonnyGuru it only has a single 12v rail.
Not according to the label on the PSU
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post #25 of 63
Quote:
Originally Posted by Socko1965 View Post
Not according to the label on the PSU
SeaSonic is weird in that they take single rail units and label them as multi rail. Their only truly multi-rail units are the S12D / M12D series, and they can still be made single rail for SeaSonic's partners.
post #26 of 63
Quote:
Originally Posted by Phaedrus2129 View Post
SeaSonic is weird in that they take single rail units and label them as multi rail. Their only truly multi-rail units are the S12D / M12D series, and they can still be made single rail for SeaSonic's partners.
Well I'm thinking if it was a single rail, he wouldn't be having this problem.
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post #27 of 63
Quote:
Originally Posted by Socko1965 View Post
Well I'm thinking if it was a single rail, he wouldn't be having this problem.
No. Not at all in any way, shape or form.

The only problem poor +12V rail distribution will cause is an immediate shutoff when the system is under load. If the problem is anything else, it's nothing to do with "rails".
post #28 of 63
The way your describing it, it sounds like something is wrong with your PSU for the PCIe connections not to work, but it sounds vague. Could be GPU, could be PSU. Anyone's guess. Get a new PSU, see if it solves it. If not, you could return it, right?
 
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post #29 of 63
Quote:
Originally Posted by Phaedrus2129 View Post
No. Not at all in any way, shape or form.

The only problem poor +12V rail distribution will cause is an immediate shutoff when the system is under load. If the problem is anything else, it's nothing to do with "rails".
Could he have possibly damaged the rail that powers the pci and still have the other two work, hence why it works with molex adaptors? Like I said, I'm no expert.
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post #30 of 63
Quote:
Originally Posted by Socko1965 View Post
Could he have possibly damaged the rail that powers the pci and still have the other two work, hence why it works with molex adaptors? Like I said, I'm no expert.
It just doesn't work like that. Follow the link in my signature and read my article on "single rail vs. multi rail". You'll probably find that "rails" have nothing to do with what you thought they did.
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