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PSU for Compaq Presario - Is it Proprietory??

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dalfollo

Senior member
I have a new Compaq Presario SR1610NX I got with the OfficeMax deal several weeks ago...it has what appears to be a standard 250W ATX (3.5" x 6.0" x 5.5") PSU...the label says it is a HIPRO; w/ Model # HP-D25327F3R; with HP Part number of 5187-1098.

A little more about the system: Socket 939 MB by MSI; two SATA; two(four) PATA; PCI-E x 1; Onboard sound and video; quiet as a mouse and would liek to keep it that way...

So I have added 1GB RAM, one DVDR and one 160GB HD....I am looking to use the two SATA connections for two more HDs, and I want to upgrade the onboard video to a PCI-E card (likely an ATI 300, 700, maybe a 1300 (TBD))...things are running OK so far with no power issues that I can see.

Compaq support told me that 250W is just fine and I can load all this with no problem (they lie through their teeth)...they tell me it is a proprietory PSU (I do not believe them) and I have to use their PSU...but they have no PSU to upgrade to as this is the only size they have....

Can anyone confirm for me that the Compaq Presario PSUs used in the SR16XXNX line were typical standard....I hate to even waste my time putting things in the machine unless there will be enough power.....thanks for any feedback...
 
looking at the case there are several holes/slots in the bottom and rear of the PSU...i think it would handle having a fan on the bottom, venting out the back.

Now to find a decent PSU and give this a try....thanks for the feedback...
 
I have what may be a couple stupid questios...

- According to what I see...I would have to rotate the PSU 180* on its roll axis so that the fan would face down...are there any issues flipping the PSUs?....are the mounting screws in the back of a case made to deal with the PSU being right side up or flip over with down?

- Can I expect that the fan will be controlled by the amount of heat in the PSU? Would love to be able to keep my silent PC...I understand that the PSU fan is alread quiet, but would like ot to learn if it is controlled as well....

 
TTBOMK, there NEVER, ever has been even a single PSU, any brand, with a fan on its "top". But there is always some newby coming along and deciding that just because he sees that PSU photographed upside down for the ads, then that is the way it belongs. WRONG. (Even if it's not a total newby, just someone who hasn't paid attention in the cooling and cases forums of any PC hardware web sites.)

You just don't worry about the direction the label faces, or the orientation of the logo. The large fan faces toward the inside of the box (edited to change that, since there are a couple of current cases with the PSU's down near the bottom). That's an INTAKE fan, and if some unwitting critter mounts it wrong, there would be no air to pull in from the space between a typical mid-tower top panel and the fan! That makes the PSU itself overheat!

:disgust:
 
Originally posted by: Kiwi
TTBOMK, there NEVER, ever has been even a single PSU, any brand, with a fan on its "top". But there is always some newby coming along and deciding that just because he sees that PSU photographed upside down for the ads, then that is the way it belongs. WRONG.

You don't worry about the direction the label faces, or the orientation of the logo. The large fan faces toward the heat source. It's an INTAKE fan, and if some dope mounts it wrong, there is no air to pull in from the space between a typical mid-tower top panel and the fan! That makes the PSU itself overheat!

:disgust:
Click to expand...

The Kiwi is correct-o-mundo!

If there is a <1" wide brace blocking the 120mm fan you should be OK.
Yes, just about all ATX PSUs have a thermally controlled fan. Some might even have a fan speed controll at the rear of the unit. In an older PSU round-up, AnandTech did not favor having this controll.

Some builders, inorder to help with a cabling run, have installed the PSU upside down. These units have a rear exhaust 80mm fan, so it makes no difference.

What I have done in the past, inorder to help quiet a thermally controlled 80mm PSU fan is this. The thermistor that controlls fan speed is on the far side from the exhaust fan, bonded into one of the heat sinks. Inorder to cool this HS an 80mm fan at 25cfm is bonded to the intake grill of the PSU with four dots of silicone adhesive, then hooked up to 12V. This simple mod will keep the 40+cfm 80mm fan inside the PSU from ramping up most days, most of the time.


...Galvanized

 
Kiwi - That was hillarious...but i just wanted to check, because as youy mention the label was in a certain direction, and some of the PSUs are oriented differently, wasn't sure if one of the capasitors or items inside needed to be oriented up or down...

Thanks...BTW with the fan facing down the area is wide open...
 
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