Corsair PSU upgrade does not post, powers up 5 seconds powers down and loops...

[dashby1]

Have the HP Pavilion Elite m9650f with the class action replaced motherboard in April, 2012 good to go. 

Replaced the stock Nvidia GeForce 9800 GT GPU with a Zotac GTX Ti 560 GPU and replaced

the stock HP 460 Watt PSU with a Thermaltake W0388RU TR2 600 Watt PSU in May, 2012. 

Everything goes good until October, 2012. 

PC starts randomly shutting itself off and will not power up until I unplug the power cord and wait 5 or 10 minutes. 

Eventually it stopped powering up all together.  Reseated all PSU power connectors, etc.  same result.

Removed all the cards, etc. , same result.  Reinstalled cards one by one, etc. , same result.

Reinstall the stock HP 460 Watt PSU, now everything works just fine. 

Thought it was a premature Thermaltake PSU failure. 

Bought and installed a Corsair CMPSU-850TXV2 850 Watt PSU a few days ago but still not good to go.  

Lights go on, fans spin, but no POST, no video, runs for about

5 seconds, shuts off, turns on by itself over and over again. 

Reseated all PSU power connectors, etc. same result. 

Removed all the cards, etc. , same result.  Reinstalled cards one by one, etc. , same result.

Reinstalled the stock HP PSU, now everything works just fine again.  ? 

Spent hours reading various forums... 

Some say RAM may not signal correct voltage to PSU.

If so, can I change the RAM voltage in the BIOS?

Others say reset CMOS which I did, same result.

And someone on this HP board thought maybe the Pegatron IPMTB-TK

Truckee motherboard may only accommodate a PSU up to 750 Watts.

Any ideas?

Can I get away with just using my stock HP 460 Watt PSU after all?

Thanks.

[lasvegaswireman]

Sorry, there are no BIOS settings for adjusting the memory voltage. These settings are automatic based on the SPD data on the DIMMs.

The Zotac GTX Ti 560 GPU may have issues with the HP 460 watt power supply. Most GTX 560 Ti cards require a minimum system power supply rated at 450 to 500 watts. You are on the low end of that scale and the HP power supply has 2 to 3 lower amp 12volt rails instead of one high amp 12volt rail. Stress the system as it is and see if you runn into any problems. If you have issues, consider getting a Corsair CX500 or CX600 power supply.

[dashby1]

Hi Lasvegaswireman, 

I agree, the many times I have worked in the BIOS, I don't recall manual RAM or CPU

voltage parameter adjustments available for this Pegatron IPMTB-TK Truckee motherboard. 

Thank you for your comments and advice. 

Did a lot more research since I posted here last and gathered up the following information. 

The stock PSU installed in my HP has two HP Part Numbers: 5188-2862 and the one I have 5188-2863. 

(These two part numbers can be found in a large range of HP Pavilion Towers, Google the part numbers.) 

The maker is Delta Electronics, Inc. which is suppose to be a major PSU manufacturer.

Delta Electronics, Model DPS-460DB A, REV: 02F.  (There are several revisions.)

It has an 80 mm thermal fan and supports the ATX 12V version 2.0 spec. 

Output Max Power 460W.  The voltages and rail amps are as follows: 

+3.3V @ 17A,   +5v @ 13A,   +12Va @ 16A,   +12Vb @ 15A,   +12Vc @ 8A,   -12V @ 0.8A,   +5Vstb @ 2A. 

The Zotac GTX  560 Ti GPU specs a 500 Watt minimum PSU with +12V rails @ 30A or higher. 

So now with an understanding of these numbers and requirements, of course the stock HP 460 Watt PSU

is under powered for Zotac.  And I want to hold on to this stock HP 460W PSU as a spare so I don't think

I will risk stressing it any further.

As I mentioned, I spent a lot of time searching on Google to try to get a handle on this problem

and I am pretty sure from reading many forums and especially this HP forum that the Pegatron

IPMTB-TK Truckee motherboard does not have a proprietary 24 pin Main Power Connector

pinning or wiring configuration in that I could get the Thermaltake W0388RU TR2 600 Watt PSU

working for about 7 months. 

And I read many user complaints and even from a few who have my HP Pavilion

Elite m9650f, my GTX 560 Ti GPU and my Corsair CMPSU-850TXV2 850 Watt PSU. 

There seems to be a Wattage cap even though there should theoretically not be one. 

Many people who have tried a Corsair 950 Watt, 850 Watt,

750 Watt PSU or other Brand reported what I reported. 

Turn the power on and the PC will not POST and no video and the fans and power

lights run for a few moments, then turn off and repeat the loop or variations thereof.

When they returned to the stock HP PSU or tried a PSU that was

rated no higher than 650 Watts, they were good to go.  So go figure?

I have included the various web pages I found that document this for those who need to know below...

So this evening I returned the Corsair 850 Watt PSU to my local Best Buy, experiment over, I hope.

Conclusion:

In any case, I have to watch out for the stock HP ATX 12V V2.0 PSU spec

and how it plays with today's PSU units and a cap of 650 Watts and

+12V rails that need to be 30A or better.

Let's hope the conclusion holds.

This was a good research, analysis and study.

Sincerely,

D.

The Thermaltake W0388RU TR2 600 Watt PSU which I installed supports

the ATX 12V V2.2 spec and does not mention a higher version and seems

to be backwards compatible with my stock HP 460 Watt PSU which

supports the ATX 12V V2.0 spec. 

The Corsair CMPSU-850TXV2 850 Watt PSU which I tried does not seem to.

It conforms to the latest ATX12V v2.31 and EPS 2.92 standards and is

backward compatible with the ATX12V 2.2 andATX12V 2.01 standards.

It that because of an ATX 12V V x.xx spec discrepancy and or a Wattage cap?

I don't know.  I didn't have access to PSU units of various

ATX 12V V x.xx specs and Wattages to experiment

further with.

However, the CORSAIR Builder Series CX600 600W ATX12V v2.3 80 PLUS BRONZE PSU

has been suggested many times on this HP Forum and it supports the ATX 12V V2.3.

So I am guessing it's the 650 Wattage cap that make the difference.

Mindful of that, I think I want a 650 Watt, 80 Plus Bronze model or better this time around.

Any Thermaltake model suggestions?

Research Web Pages:

Pegatron Truckee motherboard (IPMTB-TK) does not seem to like higher than 650 Watts.


PSU upgrade for m9650f

http://h30434.www3.hp.com/t5/Desktop-Hardware/PSU-upgrade-for-m9650f/m-p/619955/highlight/true#M3124...



Some proprietary caution:

http://h30434.www3.hp.com/t5/Desktop-Hardware/upgrading-power-supply/m-p/1232145/highlight/true#M435...



Answer:  460 Watts, 500 Watts, 550 Watts, 600 Watts, 650 Watts.

Cosair HX Series not TX Series.

Even an Antec Basiq 550 Watt works.


Read the 2 pages, same MB, no higher than 650 Watts, 850 Watts too high.

http://h30434.www3.hp.com/t5/Desktop-Hardware/e9150t-does-not-like-high-end-PSU/td-p/309942/highligh...


http://h30434.www3.hp.com/t5/Desktop-Hardware/HPE-590t-power-supply-upgrade-issues/td-p/553077



http://www.tomshardware.com/forum/335134-31-stymied-anemic-power-supply



http://support.hp.com/us-en/document/bph06788



If you go to Corsair again consider this one recommended via HP forum:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028

http://h30434.www3.hp.com/t5/Desktop-Hardware/Replacing-PSU-on-my-m9340f/m-p/1160313/highlight/true#...

[dashby1 · Accepted solution]

I have an addendum to add to this thread.

To refresh, my questions focused on a possible mis-match of PSU and motherboard specs:

Is it an ATX 12 Volt 2.0 and above spec problem or a Wattage cap problem?

I posted my questions to the Corsair PSU Forum

concurrently and I paste here now, a response

to RAM GUY.

"Hi RAM GUY,

Sorry I could not reply until now.  

Thank you for clarifying the difference between the ATX 2.0 spec and 2.01

spec in that the Negative -5 Volt Rail is not present in the 2.01 spec and

beyond.  As I mentioned previously, the Thermaltake PSU that has been

running in my 2009, HP i7 Tower for the last 7 months says 12 Volt ATX 2.2

on the case and even though the OEM HP power supply says 12 Volt ATX

2.0 in spec literature I found on Google, the actual PSU I have does not

have any ATX spec rating on the case.  So I think it is safe to say, my

motherboard does not require the Negative -5 Volt Rail in that it played

nicely with 12 Volt ATX 2.2 spec up until recently.


Though theoretically there is supposed to be no limit on the amount of

Wattage you can use to power your motherboard because the motherboard

is suppose to use only what it needs and cap the rest, it appears that OEMs

can dial up Wattage limitations if they deem necessary.  


Could be as simple HP, not wanting to compete with some of it's HPs

Professional Work Stations, thereby caps Wattage on some Pavilion Elite

Series models to prevent them from becoming a much less expensive

solution.


In any case, I think with all available information digested, it's not about

ATX specs, but rather my HP motherboard has a Wattage limit of 650 Watts

though I think I read someone else got the same motherboard going with

750 Watts but I don't remember where to find that posting."


I am back up and running, yeah !


Thank you again Lasvegaswireman !

[Big_Dave]

Hi,

A recent response from Corsair technical support states " As long as HP is ATX compliant then our PSUs should work.  We have heard of no compatibility issues with our PSUs and HP PCs".

[dashby1]

Hi Dave, 

Thanks for that info.  As you know, I bought a Corsair CMPSU-850TXV2 850 Watt PSU in December, 2012. 

The beginning of this thread describes my problems and the experience I had with the CMPSU-850TXV2 850 Watt PSU.

"Lights go on, fans spin, but no POST, no video, runs for about

5 seconds, shuts off, turns on by itself over and over again."

Remove the Corsair and reinstall the HP 460 Watt OEM PSU and the HP m9650f powers and boots up.

So I would say yes, if the HP motherboard is ATX compliant it should work with HP computers but,

as mentioned many times on this HP Forum and other Forums, it seems that there is a 650 Watt

limit or cap on the Pegatron IPMTB-TK Truckee motherboard in my HP Pavilion Elite m9650f computer.

Therefore, in my case, a Corsair ATX compliant PSU rated at or below 650 Watts may be more the ticket.

Corsair does spec backwards compatible ATX 12V versions but I could not find the same for Themaltake.

Corsair HX600 ATX 12V v2.3, EPS 2.91, 2.2, 2.01 as you mentioned in an earlier post.

Corsair CX600 ATX 12V v2.3, 2.2, 2.01     Only the HX600 and the CX600M mention EPS 2.91.

Thermaltake TR600 ATX 12V v2.2     No other specs are mentioned.  This is the PSU I started with.

Thermaltake TR600P ATX 12V v2.3, EPS 2.91, 2.2, 2.1    This is the PSU Thermaltake upgraded me to.

In ATX 12V versions, is 2.1 the same as 2.01 ?

I will write Thermaltake to see if they can give me more specs for the TR600 and the TR600P.

I do know that the TR-600P has a Peak Output Capacity of 720 Watts. 

And it's ATX 12V version specs seem to be the same as the Corsair HX600.

So I am wondering if the fact that the TR-600P has a Peak

Output Capacity of 720 Watts, if that might be the "gotcha" here?

In any case, I ordered a Corsair CX600 from newegg and it should be here next week.

I'll let you know what I find out from Thermaltake and if the Corsair CX600 works for me.

Thanks for your help.

[dashby1]

The Thermaltake people sent me an email today and it says the following:

"There shouldn’t be any incompatibility issues at all unless you are using an older AT class system.

Here is a reference link to what current ATX standards are:

 http://www.formfactors.org/developer%5Cspecs%5CSFX12V_2_3dg.pdf

From a technical standpoint our power supplies should not have any incompatibilities because

we only design our units off of ATX standards. The main problem is that sometimes major

system builders will veer off those standards in order to force the customer to buy

replacement parts directly from them."

[dashby1]

The Corsair CX600 PSU was delivered to me today !

I was happy but scared too at the same time.

I installed the CX600 and pressed the HP power button

while feeling sick to my stomach and presto chango

my HP Pavilion Elite m9650f came back to life !   🙂

However, if this Corsair CX600 PSU fails early like the

Thermaltake TR-600 did, then I am going to go back

to the HP 460 Watt OEM PSU. 

After waiting about a year to upgrade the PSU to run a Zortec GTX 560 Ti video card

I would just have to take my chances as too much time has gone by to delay

this any further.

Thank you everyone who contributed to and

read about this PSU replacement journey.  🙂

[Big_Dave]

Hi dashby1,

Open a ticket with Corsair Thermotake and explain the situation. I used a Corsair HX650 with the same motherboard without issues.

[dashby1]

Update: 

9 hours after the install, my HP Pavilion Elite m9650f

with the new Corsair CX600 PSU is still going strong !

In addition to posting my results here, I also sent an email to the nice

Thermaltake people mentioning that though the Thermaltalke TR-600P PSU

they had just sent me did not work with my m9650f, the Corsair CX600 PSU

worked right away, right out of the box.

Around 6:00 PM today I got this response from a very helpful Thermaltake Tech.

"Thanks for the update!

  I will have our PM team reach out to our contact at HP to see if we can get some sort of clarification on this.

  Thanks again!"

In the mean time, I'll continue to monitor

my success with the Corsair CX600 PSU.  🙂