Question Asus P5P43TD CPU upgrade but doesn't POST

[Couch_Potato123]

Hi, recently I upgraded an intel core 2 quad q6600 SLACR to an intel core 2 quad q9550 SLB8V on this motherboard. It was working fine with the q6600 but when I placed the new cpu, the motherboard won't load into bios and doesn't turn on. I did upgrade the BIOS and tried to reset CMOS, nothing worked. I know the cpu is on the supported list so I have no clue where could have gone wrong. I also used another old cpu which was celeron e3400 and it worked, just not the quad q9550.
I know it's an old board already, found out that I had this equipment at home so I thought of reutilizing it.
Could anyone help a newbie? Thanks!

Specs:
Motherboard : Asus P5P43TD
CPU: Intel Core 2 Quad Q9550 SLB8V
Ram: 4x 4GB DDR3 1600Mhz
GPU: GTX 750 TI
PSU: 550W
Storage: SSD 512GB

 

[helpstar]

does it load again with the Q6600?

replace the cmos battery

 

[triplex1]

who is your psu and how many years you have it?

 

[Couch_Potato123]

does it load again with the Q6600?

replace the cmos battery

Yep it does load again with q6600. But not the actual cpu I'm upgrading.

 

[Couch_Potato123]

who is your psu and how many years you have it?

I have no idea of the brand, its model is SM-PS550w. Ive had this one for around like 4 year maybe. Because I changed power supply back then

 

[triplex1]

I have no idea of the brand, its model is SM-PS550w. Ive had this one for around like 4 year maybe. Because I changed power supply back then

it must be from antec , find and try someone else, it probably doesn't give you the currents you need for starting

 

[Couch_Potato123]

it must be from Adec , find and try someone else, it probably doesn't give you the currents you need for starting

Would Tooq ep-480s work? I have one sitting around, despite it being 480W.

 

[triplex1]

Would Tooq ep-480s work? I have one sitting around, despite it being 480W.

this is?

 

[Couch_Potato123]

this is?

Im trying to upload a picture of my psus

 

[Couch_Potato123]

this is?

This is what I have spare: https://ibb.co/XDPjXCx
This is what I have on the PC right now: https://ibb.co/hcbBy9v

 

[triplex1]

here https://imgbb.com/
get the full link ( copy and paste)

 

[Couch_Potato123]

here https://imgbb.com/
get the full link ( copy and paste)

https://ibb.co/hcbBy9v

IMG20241025155138 hosted at ImgBB

Image IMG20241025155138 hosted in ImgBB

ibb.co

like this?

 

[triplex1]

https://ibb.co/hcbBy9v

IMG20241025155138 hosted at ImgBB

Image IMG20241025155138 hosted in ImgBB

ibb.co

like this?

is this from computer or is it the 2nd one you have?

 

[Couch_Potato123]

is this the computer or is it the 2nd one you have?

The first link with 550W psu is what i have on pc, the 480W psu is what i have spare

 

[triplex1]

The first link with 550W psu is what i have on pc, the 480W psu is what i have spare

480 watts is enough to see if it works, try it, if the motherboard is alive

 

[Couch_Potato123]

480 watts is enough to see if it works, try it, if the motherboard is alive

The motherboard is alive, I tried the spare psu. The outcome was the same. The Q9550 didnt boot up, but with Q6600 it booted up.

 

[triplex1]

The motherboard is alive, I tried the spare psu. The outcome was the same. The Q9550 didnt boot up, but with Q6600 it booted up.

did you overclock with the 6600?
if yes , reset your bios settings

 

[Couch_Potato123]

did you overclock with the 6600?

Yes I did, but then i reset the bios so its stock.

 

[triplex1]

Yes I did, but then i reset the bios so its stock.

with jumber and the battery of mb?

 

[Couch_Potato123]

with jumber and the battery of mb?

With the CMOS battery and holding the power buton for 30s

 

[triplex1]

With the CMOS battery and holding the power buton for 30s

when I took the battery out of such motherboards, I put it back in after 10 minutes

 

[Couch_Potato123]

when I took the battery out of such motherboards, I put it back in after 10 minutes

Maybe i should wait longer

 

[Couch_Potato123]

when I took the battery out of such motherboards, I put it back in after 10 minutes

But i have a spare Celeron E3400 that works when i put it on, just not this q9550.

 

[triplex1]

But i have a spare Celeron E3400 that works when i put it on, just not this q9550.

you will find an E5450 xeon from AliExpress, it's cheap, it's only 80 watts and it goes up more than all the others, you'll just need a mod bios to put in for it to work

 

[triplex1]

like this