Replacing PSU on a Small Form Factor Dell Optiplex

Hello,
I am in the process of replacing a PSU on a Small Form Factor Dell Optiplex - tight fit!
It turned out that I had to remove almost everything (the OEM "manual" had stated otherwise) - I haven't removed the original power supply yet so there may be more surprises!

After connecting the "new" PSU, should I boot the system before securing the drives etc.? (To make sure everything's connected properly) Is this safe?
If this does not work: original problem: Hot air /case from PSU fan
http://www.windowsbbs.com/hardware/98132-psu-air-case-metal-psu-get-really-warm.html
since I have everything out, should I replace the board? (They'd sent a rpl motherboard)
(The PSU is only 235 W - OEM) I really think the problem is an inadequate power supply.

 

You were told in the other post that the temps were OK by me and Pete. I guess your objective is to change out EVERYTHING Dell sent you. Change them out and go from there. Put it all together then turn it on. You should of let Dell send the tech out in the first place. You just helped them make more money by not having a tech come to your house. You could have watched the tech do his/her thing and learned from it. It was your decision.
I am not scolding you, I am just telling you what I think would have been the best decision.

 

I appreciate the reply.

That’s what I wanted to know...

It has not been applied and I really don’t want to replace the heat sink "“ since you’d mentioned the temps are okay it’s not the heat sink.

I also don’t think it’s the system board and don’t want to replace that either.

IMHO it’s an inadequate PSU. Seeing how they sent a PSU with the same capacity (235 watts) I'll likely have to buy one (that fits) of at least 350 watts….
The minitower comes with ~ 300 Watts
The desktop comes with ~ 400 watts

Thank you

 

I agree "“ Dell is a good company (IMO)

I did find this article: FWIW
“Excellent PC but horrible power supply - Dell Optiplex 780 desktop computer "“ Viewpointsâ€
http://www.viewpoints.com/Dell-OptiPlex-780-desktop-computer-review-9dae4

This (I believe) refers to the desktop not the Small Form Factor I have

I think there’s one out there but I’ll "cross that bridge when I come to itâ€
Thanks

 

Hi,
I never resolved this:

Dell sent a technician (the replacement PSU was a slightly different in model and I didn't want to break anything).
The technician also replaced the heat sink.

It is still noisy and gets warm however it cools off after being on all day (not totally cool but somewhat cooler)
Only 1 freeze concerning Adobe.
Due to broken bones I cannot do anything right now but when I'm better I will likely purchase a PSU with a higher rating:
"Refurbished: 305-Watt Power Supply for Dell OptiPlex 760/ 780 Desktop/ 780 Mini-Tower/ 780 Small Form Factor "
http://accessories.dell.com/sna/products/power/productdetail.aspx?c=us&l=en&s=biz&cs=555&sku=p192m

Maybe these (SFF) are normally noisy and warm due to the size (parts are really tight fit)?

Question: This thread is not Resloved. Are there any other options aside from "Resolved" e.g. "Suspended" or "Unresolved" to label the thread with? Otherwise I'll mark it "Resolved ".

NB: This thread is related to this one. (Same PC etc.)
"PSU air, case and metal at PSU get Really warm "
http://www.windowsbbs.com/hardware/98132-psu-air-case-metal-psu-get-really-warm.html

 

Personally I'd leave it open until you're happy tanya, but keep us updated occasionally so we know what's happening.

 

The small form factor will run warmer then a regular tower. Not as much space to move air like in a regular tower.

 

Thanks
It might be a while ... but I can leave it open.
Tanya

 

I am holding off on this problem (I cannot move the pc right now - broken bones) but I am using it. It does not run well. It blows hot air out from the PSU fan still, and the DVD-RAM(?) drive gets warm.

What I really need to know is whether these systems (SFFs crowded inside case) are prone to getting / feeling warm?

I cannot get the answer from dell.

Also, I found another PSU link posted above and here:
"Refurbished: 305-Watt Power Supply for Dell OptiPlex 760/ 780 Desktop/ 780 Mini-Tower/ 780 Small Form Factor "
http://accessories.dell.com/sna/products/power/productdetail.aspx?c=us&l=en&s=biz&cs=555&sku=p192m
Does anyone think this might help?

I am also disabling the 100's of items from msconfig -> startup
BTW, they return. Should I do something with services first?

Thanks

 

The smaller they are, the hotter they will run. That is one of the reasons why I stay away from them small form factors.

 

Thanks

I guess excess items in start-up and processes running affect the heat too?
(i.e. software)?
When I use utilities to monitor the CPU temps, more windows increase the temps....

Do you think a higher rated PSU would help? Current is only 235 watts but I don't want to waste $ on the 305W if it wouldn't help at all.....

I don't know where inside the case an extra fan would go?
Thanks!

 

No the higher rated PSU would not help.

 

Hundreds of items? There should not be more than 20 or so. Depends on what you installed. MSCONFIG is a testing tool. Not to be used in real life. There are programs out there that you can use to stop unnecessary startup items.

 

What about another fan?

There must be a solution... The programs run badly the longer it's on (gets warm)

I still have to troubleshoot start-up, processes etc. but I still think it's <also> due to H/W issues....

 

Is there room for another fan and a connector for it? Is this still under warranty? If so, get them to fix it.

 

Didn't see this until now:
I was kidding - about 20 or so

I don't know anything about the programs - I know there are Web sites I can look at.

I don't know - I have to look inside (and look at the tech manual).
Maybe increase the specs for the current one (shape, # blades, speed)? Again options limited due to size of case...

See page 1

I had taken it apart but the rpl PSU didn't fit easily (different model #)
Dell sent a tech who replaced the PSU and the heat sink - no difference

Thanks...

 

As many problems you are having, I would call them back and let them know about it. You keep fooling around and it will be out of warranty and you will be stuck with it.