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Flakey PS??

Q

QwertyJuan

[H]F Junkie
Joined
Aug 17, 2000
Messages
11,285
I have an antec truepower 430, and the 12v is running like 11.6.... this is unacceptable is it not?? This ran my machine for a year 100%(I don't think it was that low b4) and now my machine seems crashy.... what do you think??

QJ
 
QwertyJuan said:
I have an antec truepower 430, and the 12v is running like 11.6.... this is unacceptable is it not?? This ran my machine for a year 100%(I don't think it was that low b4) and now my machine seems crashy.... what do you think??

QJ
Click to expand...

The spec is +/-5% so 11.6 is in spec.....if this a multimeter reading not a unreliable software reading ;)
 
what do you mean the system SEEMS crashy???? if it's fine.. leave it alone and stop reading in these forums! lol
 
QwertyJuan said:
It's a BIOS reading....

QJ
Click to expand...

Then you would need to check it with a multimeter since the BIOS draws it's inforamtion from the same place as software. Also does it seem more "crashy" when doing certain things than others?
 
aZn_plyR said:
what do you mean the system SEEMS crashy???? if it's fine.. leave it alone and stop reading in these forums! lol
Click to expand...

Yes my system seems crashy... sometimes when I go to open something up... it crashes explorer and restarts it.... I've tested ram/video/etc... and everything seems to be running properly... what do you mean don't read the forums?? lol

QJ

P.S. I've formatted 3 times in a row
 
How did you test the RAM, video, etc.?

Redundant ensemble of components?
 
memtest86 for the ram... and a bunch of repeated passmarks burn in test for everything else...

QJ
 
QwertyJuan said:
Yes my system seems crashy... sometimes when I go to open something up... it crashes explorer and restarts it.... I've tested ram/video/etc... and everything seems to be running properly... what do you mean don't read the forums?? lol

QJ

P.S. I've formatted 3 times in a row
Click to expand...

OOO I mean stop reading the forum because it will make you go crazy and keeps you doing things that you dont need to.. but in this case I see u have a problem with exploerer crashing hmmm I doubt it's the psu.. sionce exploerer dont really stress anything... but if it was in gaming.. then maybe.. but anyways what did you test the ram with? I am sure thats the prblem b/c I get the same thing when I OC my ram too high.... and have you tried FIREFOX???

Another reason that I think is VERY LIKELY is explorer is infected with spywares and stuff....
 
like I said, I used memtest86 for the ram, and 3 fresh installs so NO spyware. Sorry.

QJ
 
Also, I didn't say INTERNET explorer crashed... I said EXPLORER... big difference.

QJ
 
I see Memtest pass bad RAM all of the time.

If you have more than one stick and can run one at a time, please consider doing so.

And Passmark isn't specifically stressful enough. I've had bad CPU's and motherboards pass Passmark Burn-In... although not often. I do use that program as a tool myself.
 
Well I did the PSU calculator, and it said I use 25.9 amps on the 12v!! :eek:

Mine only has 26a....

I just ordered an Enermax EG565P-VE, it has 36A(18 per channel) and it 535watts. Hopefully this is good.... I've always liked Enermax.

P.S. I have...

Dual 2800MP
Gigabyte 760 Mobo
1 GB Transend ECC REG 2100DDR
4 120GB HDD's
Intel MT Nic
Promise Raid 5 Controller - 256MB Ram
5 case fans
52X Burner
Radeon 7000 64MB
 
QwertyJuan said:
Well I did the PSU calculator, and it said I use 25.9 amps on the 12v!! :eek:

Mine only has 26a....

I just ordered an Enermax EG565P-VE, it has 36A(18 per channel) and it 535watts. Hopefully this is good.... I've always liked Enermax.

P.S. I have...

Dual 2800MP
Gigabyte 760 Mobo
1 GB Transend ECC REG 2100DDR
4 120GB HDD's
Intel MT Nic
Promise Raid 5 Controller - 256MB Ram
5 case fans
52X Burner
Radeon 7000 64MB
Click to expand...
Does that mobo even power the CPU's from the +12V rail?
Does it have an EPS or p4 (+12V) connector?
It might power the CPU's from the +5V rail.
 
To my knowledge, all MP boards have 12V CPU regulation.

I'm pretty sure that board is the same GA-7DPXDW I have in our CRM server which DEFINITELY uses the 12V for the CPU's.

2x2 is right next to the 20-pin (yes, 20-pin.)
 
jonnyGURU said:
To my knowledge, all MP boards have 12V CPU regulation.

I'm pretty sure that board is the same GA-7DPXDW I have in our CRM server which DEFINITELY uses the 12V for the CPU's.

2x2 is right next to the 20-pin (yes, 20-pin.)
Click to expand...
Thanks ;)
 
flakey is a good thing in an appleturnover
but bad in a PSU :p

when you used the calculator, did you deduct 3\4th of the amps per component for everthing that spins?

once drives & fans spinup their draw drops to about one quarter of their rating
an generally you dont count the opticals at all for a "spinup draw" unless your booting from a CD, during a "runtime draw" where the worse case is the CPU and GPU at 100% unless your gaming from a CD you wouldnt count it either, if you are then just a single optical and at 1\4 its rated draw.

when you say explorer, would that be Windows or Internet?
 
Ice Czar said:
flakey is a good thing in an appleturnover
but bad in a PSU :p

when you used the calculator, did you deduct 3\4th of the amps per component for everthing that spins?

once drives & fans spinup their draw drops to about one quarter of their rating
an generally you dont count the opticals at all for a "spinup draw" unless your booting from a CD, during a "runtime draw" where the worse case is the CPU and GPU at 100% unless your gaming from a CD you wouldnt count it either, if you are then just a single optical and at 1\4 its rated draw.

when you say explorer, would that be Windows or Internet?
Click to expand...

Windows.... explorer.exe not iexplore.exe :)

And I just typed in what I had and looked at the values at the bottom of the page, and it said I needed 25.9Amps total.

P.S. To poster above... AFAIK all Socket A CPU's use 12A power.

Also, jonny, it is the same mobo you are talking about... expect mine has a -P after it

QJ
 
QwertyJuan said:
Windows.... explorer.exe not iexplore.exe :)

P.S. To poster above... AFAIK all Socket A CPU's use 12A power.
Click to expand...

I think you mean V, not A and not all Socket A's use 12V. In fact, MOST do not. In fact, in fact, almost all Gigabyte single CPU boards regulate Socket A CPU's with the 5V rail. Just the duallies are always 12V regulated. ;)
 
yeh the socket A acid test is the 4 pin auxillary +12V mobo connector
AMD swings both ways :p

all P3s are +5V
all P4s are +12V
 
Power supply calculators overestimate all the time, and 25.9A @ +12V is >300W, which doesn't seem credible, even though you have a dual CPU setup. Borrow a clamp-on ammeter to see what it's really drawing.

MemTest86 is one of the best, but several weeks ago, it ran for hours without finding errors in a Kingston PC3200 DIMM that Gold Memory consistently found to be bad. The replacement DIMM passed both Gold and MemTest86. I've also had a couple of DIMMs that passed Gold but failed MemTest86.

I have an ASRock K7VT4A Pro and ECS K7VTA3 and K4S5A Pro mobos that all use +5V for CPU power. I had a BioStar M7VIZ that used +12V for that, but it didn't have the 4-pin ATX12V connector for it but relied on just the single +12V wire on the 20-pin connector.
 
larrymoencurly said:
I had a BioStar M7VIZ that used +12V for that, but it didn't have the 4-pin ATX12V connector for it but relied on just the single +12V wire on the 20-pin connector.
Click to expand...

I've been an avid Biostar user and never realised this. How did you find this out?
 
larrymoencurly said:
Power supply calculators overestimate all the time, and 25.9A @ +12V is >300W, which doesn't seem credible, even though you have a dual CPU setup. Borrow a clamp-on ammeter to see what it's really drawing.
Click to expand...
Actually if it is Takaman or a good calculator it calculates worst case draw possible. That isn't overestimating so much as being conservative nothing sucks worse than underestimating ;)
 
well its still massive overestimating especiallty the further away you get from a barebone system, cards, and especially drives boost the numbers quite alot but when those loads become concurrent and to what degree no one really knows.

for instance when the drives require their full draw at spinup, what is the "typical" CPU and GPU draw? jonnyGURU and I have been discussing how you might be able to put a figure to that or at least in general, based on the AC draw which is easily measured, adjusted for efficiency to a DC draw, deducting the drives full spinup draw, you get a figure, if the test is performed twice one with just the mobo and CPU, you split that between the two by some ratio likely as reflected in Takamans. And then repeat with a graphics card , or any other addon component like a PCI controller and you have a real good idea what their individual startup draw would be. (again adjusted for effeciency of conversion based on a previously compiled chart)

Obviously that proceedure is dependent on the unique mobo + CPU combination power draw, further modified by the PSUs own efficiency, but after being employed a couple of dozen times (for instance same board different CPUs, same CPU couple of different boards all with the same PSU) a rough idea would emerge and youd have a reliable means to test startup for add in cards.

a note on testing RAM with software
its always somewhat problematic since the program needs to load into the memory
so switching multiple sticks around in slots is often necessary.

http://www.lostcircuits.com/memory/ultrax/

Ultra-X RAM Stress Test Pro
Mapping Memory Errors or "Bits and Pieces"

The advantage of having a non-DOS or Windows based test program is quite simple. If an operating system is running, the area of memory containing the OS or reserved for the OS cannot be tested correctly. Usually, the workaround in a situation like this is to alternate DIMMs between two memory slots since the operating system will be loaded onto the higher (Win9x) or the lower number DIMM (all other operating systems). Thus, by switching DIMMs back and forth between slots, one DIMM can always be kept free of the OS which, then allows complete testing of the module. The natural drawback is that every DIMM has to be tested twice which can be rather time-consuming.
Click to expand...

with a single module youre simply SOL when it comes to fully testing with software
and though Im not positive, dual channel & DDR2 might present some additional considerations as well.
 
Well I have 2x512 ram... perhaps I can test them one at a time....

The enermax is on the way, and I plan to use it anyhow... but it'd still be nice to know if this is the problem I am actually having.

I will try the ram within the next day, and we'll see if it's ram or not.

QJ
 
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