Sign in with
Sign up | Sign in
Your question
Solved

Is my cpu dead?

Last response: in CPUs
Share
November 13, 2010 12:00:44 AM

Trying to upgrade my processor on my TA790GX 128m mobo from athlon 2 2core to a phemon 9850 4core.
Best i can tell the new processor is compatible with the mobo but when i install the new cpu the screen stays blank.
Updated the bios reset cmos etc reseated everything nothing works. My LED light on the board are telling my its a memory issue but the ram seems to be work fine with the old cpu. I'm just at a loss. Any help would be appreciated.


New cpu- AMD Phenom 9850 Black Edition 2.5GHz Socket AM2+ 125W Quad-Core Desktop Processor HD985ZXAJ4BGH - OEM


The mobo- BIOSTAR TFORCE TA790GX A2+ AM2+/AM2 AMD 790GX HDMI ATX AMD Motherboard
Now im abit confused about this because the invoice from newegg says ta790gx a2+
but on the board its self it says ta790gx 128m.


Another thought my power supply is a 485watt could that be a problem?
also im running a ATI HD4850 graphics card not sure how much juice that thing uses.







More about : cpu dead

a b à CPUs
November 13, 2010 10:08:24 AM

Quote:
Trying to upgrade my processor on my TA790GX 128m mobo from athlon 2 2core to a phemon 9850 4core.
Best i can tell the new processor is compatible with the mobo but when i install the new cpu the screen stays blank.
Updated the bios reset cmos etc reseated everything nothing works. My LED light on the board are telling my its a memory issue but the ram seems to be work fine with the old cpu. I'm just at a loss. Any help would be appreciated.


I will try to help by process of elimination. Just to confirm the old cpu still works with the updated bios?

Quote:
New cpu- AMD Phenom 9850 Black Edition 2.5GHz Socket AM2+ 125W Quad-Core Desktop Processor HD985ZXAJ4BGH - OEM


This is listed as being supported by your MB so should be fine.

Quote:
The mobo- BIOSTAR TFORCE TA790GX A2+ AM2+/AM2 AMD 790GX HDMI ATX AMD Motherboard
Now im abit confused about this because the invoice from newegg says ta790gx a2+
but on the board its self it says ta790gx 128m.


The A2+ and the 128M both support the 9850 but have different bios files so you need the right one for the board.
Which bios did you use? The A2+ or the 128M?
If you installed the wrong bios for the board this will be the problem but I'm wondering if it would let you install the wrong bios in the first place, but its a good place to start.

Quote:
Another thought my power supply is a 485watt could that be a problem?
also im running a ATI HD4850 graphics card not sure how much juice that thing uses.


Should be ok, is it a decent branded one?
Are you sure all the connections are properly connected?
PCI and AUX power for the card and ATX 12v power cable.
Are all your bios settings on auto, you may need to change or up some voltages for quad core.

If the machine boots with the old cpu and the newer bios I would think you have the right bios.
Load into windows and download cpu-z and see what board it says you have.


Let me know how it goes.

m
0
l
November 13, 2010 12:40:55 PM


The A2+ and the 128M both support the 9850 but have different bios files so you need the right one for the board.
Which bios did you use? The A2+ or the 128M?
If you installed the wrong bios for the board this will be the problem but I'm wondering if it would let you install the wrong bios in the first place, but its a good place to start


Actually I tried 4 differents ones 2 for each board model. Amazingly all 4 of them worked with the old cpu but not with the new one.


Should be ok, is it a decent branded one?
Are you sure all the connections are properly connected?
PCI and AUX power for the card and ATX 12v power cable.
Are all your bios settings on auto, you may need to change or up some voltages for quad core.


If your referring to the PSU no its a off the wall brand super cheap.
All the wires are plugged in properly best i can tell as everything is working correctly with the old cpu installed.
I'll have to check the bios to see what all is set to auto. Didnt really do anything there except revert everything to default settings. The voltage i havent messed with at all.
m
0
l
Related resources
Can't find your answer ? Ask !
a b à CPUs
November 13, 2010 3:02:51 PM

Does the PSU have all the required power connections for the board?

12v ATX - Top right little white 4 pin plug.

AUX power for graphics - 4 pin in the middle where it says gigabit LAN.

And a 6 pin PCI express that plugs directly into the graphics card?



They look identical -



Also read this - http://www.allquests.com/question/3723646/TA790GX-128M-...

I'd use the 128m BIOS if thats what it says on the board.
m
0
l
November 13, 2010 3:28:34 PM

Yep got all the plugs.
And the 128m bios is the one im using now.
Also i checked the voltages. they were in the range for the 9850 which calls for 1.0 something to 1.3
My voltage was set at 1.23
m
0
l
a b à CPUs
November 13, 2010 3:37:27 PM

Right, so you change the CPU over, plug everything back in and fire it up.

Do you get a POST beep?

Can you access the BIOS.

Does everything spin up like its going to start and stay on even though there is no display?

What RAM are you using?
m
0
l
November 13, 2010 3:48:24 PM

yea new cpu in fire it up no beeps no bios just black screen fan and power does come on.

and ram is- G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model F2-8500CL5D-2GBPK
m
0
l
a b à CPUs
November 13, 2010 3:53:26 PM

Are you using the latest 128m bios?

Also try removing your 4850 and plugging the monitor into the onboard graphics port.
m
0
l
November 13, 2010 3:53:58 PM

The board has some LED diagnostics lights they indicate a memory error with the new cpu installed. Kinda makes me wonder if there is some compatiblity problem there.

G.skill is not on the list of compatible ram for this board but it has been working with my old cpu for over a year.
m
0
l
November 13, 2010 3:54:57 PM

yea 128m lastest bios and did try it with the onboard graphics
m
0
l
November 13, 2010 3:56:01 PM

Took the ATI HD4850 totally out.
m
0
l
a b à CPUs
November 13, 2010 4:04:48 PM

Have you tried this-

Turn off PSU, drain the power by pushing the on button.

Install 9850.

Re-set the bios by moving the jumper over and removing the bios battery for about 10 mins.

Re-install battery and move jumper over.

Just install 1 stick of ram in slot 1.

Fire it up.

m
0
l
November 13, 2010 4:13:34 PM

i tried 1 stick of ram tried all 4 one at a time in different slots too.
Did power it down unplugged it then moved the jumper let it sit for a bit then moved it back and tried it. did not remove the battery tho.

m
0
l
a b à CPUs
November 13, 2010 4:19:37 PM

Sometimes just the jumper won't do.

I've had machines that wouldn't boot and sometimes I had to switch the jumper and leave the battery out for 30mins plus.

Its worth a try, try it for 20 mins.
m
0
l
November 13, 2010 4:21:59 PM

I think i might just RMA this sucker just so i can rule out the DOA possibility.
Then if that dont work i might try some new ram.

But one way or the other im gonna have to get this thing to work cause i cant get my money back on it.

One other idea tho. Do you think formating my HDD and a fresh install of windows would make a difference?

But then again bios should still post reguardless of the OS shouldnt it?
m
0
l
a b à CPUs
November 13, 2010 4:29:23 PM

urzla said:
I think i might just RMA this sucker just so i can rule out the DOA possibility.
Then if that dont work i might try some new ram.

But one way or the other im gonna have to get this thing to work cause i cant get my money back on it.

One other idea tho. Do you think formating my HDD and a fresh install of windows would make a difference?

But then again bios should still post reguardless of the OS shouldnt it?



The RAM should work and the OS won't make a differance.

Possibly need more voltage in CPU or RAM.

I would def try the longer BIOS reset, its worked for me before.

Only other sure fire way is to find another machine you can try it in.

Otherwise.... [:fisshy:2]
m
0
l
November 13, 2010 4:30:14 PM

Ill try the battery thing tonight when i leave for work.

Let it stay out for about 5 hours :) 
m
0
l
November 13, 2010 4:32:22 PM

Yea Dug out the old mobo i had before this one to see if it would work in it but its way to old.
m
0
l
November 13, 2010 4:39:54 PM

Watch me windup having to build a whole new computer just to get teh processor to work><

Thats what happened to me last time tried to upgrade a processor. this was back before i knew anything about building computers.

lol i thought i could just buy an Mobo and processor for my dell computer and slap it in there and id be good.

Boy did i get a big suprise. Had to get new everything case ram drives all of it :p 
m
0
l
a b à CPUs
November 13, 2010 4:45:40 PM

urzla said:
Watch me windup having to build a whole new computer just to get teh processor to work><

Thats what happened to me last time tried to upgrade a processor. this was back before i knew anything about building computers.

lol i thought i could just buy an Mobo and processor for my dell computer and slap it in there and id be good.

Boy did i get a big suprise. Had to get new everything case ram drives all of it :p 



Thing is this should be fine. :heink: 

I'm sure you'll get it, just keep tryin things and tick them off the list.

I'd leave the 4850 out so the PSU isn't stressed while your tryin to get it fired up.

Its always the things that don't make sense that [:aford10:1] , but its nice when you mange to sort them. [:bohleyk:1]
m
0
l
November 14, 2010 1:10:50 PM

Well that cuts it. i'm sending this thing back.

I really think its dead. No reason why it shouldnt be working.

I really appreciate all your input. I'll be intouch in a week or so to let you know how it works out.
m
0
l
a b à CPUs
November 14, 2010 3:19:49 PM

I can only assume the bios reset didn't work.

Yep, it should work, sorry we couldn't get it going.

Good luck with the return. :) 
m
0
l
November 30, 2010 9:31:30 PM

well got my return done

got a new cpu

Still doesnt work ><

Gonna have to try some new ram
m
0
l
a b à CPUs
November 30, 2010 9:44:55 PM

Ahhhh. :fou: 

Whats the make and model of your psu?
m
0
l
December 1, 2010 3:47:58 AM

hec HP485D 485W ATX12V Power Supply - Power Cord Included

that will be the next thing i check out ><
after i get a new stick of ram thats compatible with my board

like i said a few weeks ago the onboard diagnostic keep saying memory error.

so ill check the ram then the psu
m
0
l
a b à CPUs
December 1, 2010 9:06:09 AM

But the ram works with the other cpu, looks more likely that the psu can't handle it.

From the pics on the site it doesn't look like it has the 12v AUX power cable.

http://hecgroupusa.com/products/switching-power-supply/...

I know I asked before (check the pics) but if this isn't plugged in it won't boot.
m
0
l
a b à CPUs
December 1, 2010 10:38:16 AM

It's quite possible (and very easy) to damage a motherboard (and not know it or see physical damage) by changing the CPU especially more common if one uses an after market CPU heat sink/fan.
Don't give yet but take this into consideration.
m
0
l
a b à CPUs
December 1, 2010 10:51:02 AM

^ The board works ok with the other cpu.

I'm going with PSU.
m
0
l
December 1, 2010 11:37:16 AM

well the old cpu is a 65watt vs the new one which is 125w
So it could be the psu
but i might as well just try new ram sence i can get a stick of kingston for about 25$
which is cheaper than a new psu :) 
m
0
l
a b à CPUs
December 1, 2010 12:36:00 PM

Has that PSU got a 4 pin 12v AUX coz it doesn't look like it on the website..

m
0
l
December 1, 2010 3:47:08 PM

Yes it does
And it is plugged in :) 
donno why its not in the pics

m
0
l
December 1, 2010 4:48:43 PM

SCORE!!!!!! i got it to work.

very weird tho.

I disconnected my HDD turned it on and it posted.

then shut it down reconnected my HDD and blam posted and loaded to windows.

Im typing this now with the new cpu installed!!!!!!!
m
0
l
December 1, 2010 8:27:47 PM

umm yea lol

im gonna need some different cooling XD

low temp48c high i stopped at 79c got scared ><
m
0
l
December 1, 2010 8:41:03 PM

My case only has one 80mm fan sucking air in the front.
then there is another one i added on the side blowing on my graphics card.

then its just the the PSU blowing air out the back.

and i have my cpu fan and a lil funnel or what ever its called pulling cool air from outside.

Might just need a new HS and fan im using the one that came with my athlon 64 x2.

whichwas only a 65w cpu and this new one 125w.

Also i read that AMD said teh critical temp for the 9850 BE was 61c.

I dont know that cpu casing temp or that actual core temp.

right now my sys temp is 40c,cpu is 34c ,cpucore temp is 47c

m
0
l
December 1, 2010 8:42:57 PM

yea ive reapplied my thermal compound 2x trying to get the temp down>
m
0
l

Best solution

a b à CPUs
December 1, 2010 9:19:51 PM

I wouldn't worry about 70C when under full load as long as it isn't constant.

HWmonitor is another good prog for checking your cpu temps.

Sounds like you could benifit from some upgrades, you probably know what your looking for but I can recommend these as good quality, very effective cooling solutions at a decent price.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Have you tried running it with the side off, depends how warm it is where you are but sometimes its cooler.

Anyway, glad its up and running.
Share
December 1, 2010 9:33:30 PM

yea running with the side off does help but i cant leave it like that cause i got a 3 yearold running around. :) 

yea i got HWmonitor got the alarm set in there and in my bios to shut it down if it gets to hot.

kinda sucks that HSF u have to take the mobo back plate off to put the hsf on ><

and yea i was lookin at a antec 900 case a few mins ago lil mor ethan the 300

I donno which ill try first new case or hsf ill just have to sleep on it.

Anyways thanks for all the advice.


m
0
l
December 1, 2010 9:35:56 PM

O yea btw the difference between the 790gx a2+ and the 790gx 128m is only the memory for the onboard graphix
m
0
l
a b à CPUs
December 1, 2010 9:48:25 PM

urzla said:
yea running with the side off does help but i cant leave it like that cause i got a 3 yearold running around. :) 

yea i got HWmonitor got the alarm set in there and in my bios to shut it down if it gets to hot.

kinda sucks that HSF u have to take the mobo back plate off to put the hsf on ><

and yea i was lookin at a antec 900 case a few mins ago lil mor ethan the 300

I donno which ill try first new case or hsf ill just have to sleep on it.

Anyways thanks for all the advice.


I have the same problem with my cats playing with the fan. :lol: 

Go heatsink 1st by the sound of it.

No problem, wish you'd tried the hdd 1st. :lol: 
m
0
l
December 9, 2010 5:02:18 AM

Best answer selected by urzla.
m
0
l
!