PSU choice

MoridinUK

MoridinUK

MoridinUK

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Joined
16 Jun 2014
Posts
408
Hi again all..

My back up pc (Intel core 2 duo e6600 2.4 ghz (never overclocked) on an asus P5B Deluxe, with 4gb ram running an ati radeon hd 5770) is also giving me BSOD issues. I ran the same tests and everything was fine, except that cpuid hardware monitor says the 12 volt rail is only offering 9.3 volts.

Sometimes it works for days with no problems but I've BSOD three times in the last 36 hrs..

Does anyone rate this site as a psu calc:

http://extreme.outervision.com/psucalculatorlite.jsp

On it's advice I thought to go for this model psu:

XFX TS 550W Fully Wired 80+ Bronze Power Supply

As I can get it delivered for under £45.

Any other suggestions? I want the thing to last a few years.
 
I dont have a voltmeter, the psu is a Seasonic s12 600 I bought it back in 2006, it has run some very energy guzzling things in its time, including an intel core 2 quad q6600 overclocked from 2.4 to 3.4 ghz and a huge (but now totally outdated) graphics card: XFX GeForce 7950 GX2 1024MB DUAL GPU XT edition PCI-E followed by a Geforce GTX 560 ti twin froz thingy.

It got moved down from my main pc, when it could no longer cut the mustard to the slightly more relaxed build above...

The system runs prime95 and memtest with no issues... if you excuse occasional random blue screens...
 
RJC said:
The 7950 is not outdated :p I run the 7970 :D

None of the specs above would actually tax the PSU, my system with the 7970 and over clocked 4770k pulls around 330w from the mains at full load.

But the fault does not rule out a fault PSU, it worth a try :)
Click to expand...

This is why I asked about the psu calc, it said it would. My 7950 is dead and long gone, it was the biggest thing I'd ever seen and like £350 back in 06... :)

I think the fact CPUID HWMonitor shows this drop in the 12v rail suggests a psu error no?

I'll run memtest over night to check again..
 
Yeah I can rip my antex sig 850 out of my main pc.. gulp.. but I don't know how long I'd want to go without that pc to test this one. Yesterday this one managed to run prime95 and the unigine valley test on loop for a good 90 mins before I stopped it with no crash. Pulled the 12v voltage up to 10 volts while it did it... temps weren't too bad either 75c on the cpu and I'm not sure I got a temp out of the graphics card... hmmm:

edit2:
SAuB4yq.jpg


Maybe it is something else, maybe the mainboard is giving up the ghost? I hate these, psu/cpu/mainboard/memory weird issues...

Edit: I put the cpu in as one, and added the exact components and a 25% capacitor degrade to simulate a couple of years usage (I dont want to replace this darn thing again in a couple of years) I also want enough head room to put my intel core 2 quad q6600 in it once I upgrade the bigger rig.

Edit 3: It is drawing even less from teh 12volt rail today...
 
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Well that screen grab is a couple of days old, yesterday the 12 volt rail was reading at 9.4 volts today it is reading 9.1!

Edit: the TEmps have always been hot. It is in an odd case, with an old freezer pro 7 on the cpu and stock on the gpu. The case has the psu at the bottom and you shut the wires in a plastic sliding door. It was supposed to create a sepperate compartment for the psu to prevent heat from it getting into the main area with the main board, but I dont htink it actually works very well. It is also deisgned to be very quiet. It's an antec p180 case. Looks good but I dont think it worked as well as hoped from cooling. It is a night mare with a fully wired psu.

Edit2: on the back of my seas sonic there are two red sockects that look like extra 12volt outputs... if I use them for the graphics card or 12volt on the main board could that help?
 
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Switched the 8 pin mainboard atx connector to the 4 pin one and the voltage jumped to 9.5 volts.. :S but these should just connect to the same rail dont they?
 
Ok so I've connected one of the 6 pin pci-express 12 volt cables from the seasonic to the mainboard. No change in volts.

This is on a sepperate rail to the atx and the other pci-express that powers the gpu. So I guess without fully replacing the psu (I discovered removing the antec one would be a pain)

I'm not much further along in diagnosing these blue screens.

Any further ideas? Run memtest for hours? Run prime95 for hours?

get real and swap the psu anyway?
 
So I sawpped it out for my antec sig 850, and lo cupid HW monitor still read 9.5 volts for the 12+ circuit. So that rules that out. So what do we do now, suspect the memory or the mainboard or cpu? Which tests to run over night? Memtest has shown no errors? Should I raise the memory voltage a little or cpu?

Where do i go from here?
 
By rei-install you mean remove the installed ones completely, and then install the latest set?

Prime95 for 9 hrs overnight: top temp 60C (seems removing the dust behind teh freezer pro fan has helped a lot).

SFC in windows found no corruptions which is as close to a reinstall as I can find time for, I really should buy a TB external drive so i'm less annoyed with reinstals. It doesn't help that I only have a win7 upgrade licenses, which makes installing a little more complicated to avoid a phone call to microsoft. (Calling them always makes me feel like they expect I'm cheating them..)

HD Tach later today, I think this one has a maxtor drive or maybe it's the old baracuda.. must check.. but it is an old drive I think..
 
I fear this may be the gc. The last two crashes have displayed a white/grey background with a bunch of multicoloured lines across the screen. I'd normally ignore it as just afterwards the blue screen pops up, but most of the blue screens I've seen have just gone to black and then to the blue screen or straight there.

SO it could be GC. I have one I can repalce to test, but the fault is intermitent, and the graphics card was not hot. I want to reseat it. and reinstall the drivers, but other than that... if I could replicate the blue screen reliably I'd be prepared to take my geforce gtx 560ti out of my main machine to test in this one... but it isn't replicatable easily.. :(
 
Acme, dont you work for SuperFlower? ;) I'd probably want a psu that would be sound as I expect I'll be upgrading the main pc in the future, and thus be putting a few more power hungry parts in this one. However, my Seasonic S12 600 (in use since 06) has done brilliantly and I also think I replaced it unecesarily with my Antec Sig 850.

I've never heard of SuperFlower till I got here though, another name to research when it does come to purchases...
 
Sorry to resurect this thread, but my woes continue.

My back up pc has been having fits on blue screen hell.

I thought we had nailed this as the GPU, so I put in my friends Saphire R7 265 as a test and the blue screens appeared to stop.

However, since installing the card and the drivers I have had 2 random blue screen moments.

I have memtested the memory to death, and prime 95 gets no errors, but I still have these random blue screens and now with 2 different cards.

I fear the problem is on the main board. Asus pb5-deluxe, old and very very well used.

I used to lug this system around a lot. Went on many trips in the car and often moved about.

In fact it was shortly after being moved about that these blue screens restarted.

When I seat the graphics card it doesn't lock in place nice and tightly like it does in the new pc. There is a lot of wiggle in the card. Could this all be caused by a slightly damaged pci-E slot?

Any advice on how to pin point the problem more throughly?

I know after so many blue screens I should try to reinstal windows, I'm loathe to do so as it will take so long and I need to thoughly back up the drive first. I have run sfc which found no problems at all!

Any suggestions?
 
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