Help with Phenom II 955 on Asus M4A78T-E

[Boomstick777]

Hi, recently purchased Asus M4A78T-E motherboard and 4gb DDR3-12800 from ebuyer, and matched them with phenom II 955 I built the pc today but nothing happens when I power it on everything powers up i.e fans, hard drives and green light on motherboard but there is no display? Does anybody have any ideas or suggestions as to why to this? I was thinking maybe the motherboard needs a bios update, but even without one it should still post? get to boot screen?

Thought id post here before returning the parts as faulty.

Thanks,

 

[TripOG]

check your mobo power connections

should have like 24 pin one and then another 8 pin one

if your psu doesnt have those you can go 20 on the one and 4 on the other

edit nevermind just looked at the board and its not like that

 

[TripOG]

id still check the power connections though kinda sounds like you forgot to plug in the 4 pin one

 

[Boomstick777]

check your mobo power connections

should have like 24 pin one and then another 8 pin one

if your psu doesnt have those you can go 20 on the one and 4 on the other

edit nevermind just looked at the board and its not like that

Yeah it powers up fine there is just no display tried using onboard graphics and a 8800gtx but no luck :-(

surely this board should post even though the cpu is new? otherwise how would u ever update a bios with a new cpu installed? this is really confusing me everthing looks fine maybe the board is doa?

 

[TripOG]

so you have those highlighted and circled all pluged in mainly the 4 pin one

 

[TripOG]

if thats the case id try clearing your chmos
maybe try a different video port

 

[Romulinx2]

Hi Boomstick777, the maximum memory speed for that motherboard is 1333Mhz.

Have you got the right memory?

 

[Boomstick777]

if thats the case id try clearing your chmos
maybe try a different video port

yeah tried resetting cmos also removed battery no joy, tried dvd and hdmi outputs plus an 8800gtx but nothing hmmmm very frustrating

 

[TripOG]

yeah like romunlinx just said check the ram i just read it doesnt support triple channel either dunno what you have for it but yeah

 

[Boomstick777]

Hi Boomstick777, the maximum memory speed for that motherboard is 1333Mhz.

Have you got the right memory?

Yeah it supports ddr3 1600 also its labeled as overclocked becasuce the phenom II 955 only supports 1333 but should be fine on this mobo im using ddr3 1600 pc3-12800. I was told earlier that if you remove all memory it will still post and display an error message I tried this but still no post just blank display. ill get some pics up in a sec...

 

[TripOG]

yeah butit doesnt support triple channel ddr3 is your ddr3 dual channel or triple?

 

[Boomstick777]

Dual channel, is it true that it should post with no memory installed? as in reach boot screen but display error message? im literally getting nothing

 

[Romulinx2]

Have you double checked your BIOS settings to make sure they are correct for the CPU and memory etc......

 

[Boomstick777]

Have you double checked your BIOS settings to make sure they are correct for the CPU and memory etc......

It won't get as far as the bios it doesn't post

 

[TripOG]

can you hear the pc actually power up not just see the fans spinning and assume its on?

 

[Romulinx2]

It won't get as far as the bios it doesn't post

Oops my mistake....Doh

Ok then, what have you recently fitted and have you checked the pins/connections.
After that the PSU or motherboard are the other possibilities.

 

[TripOG]

on this pc i built here i went a little to fast putting it together and only plugged in the 24 pin and everything looked like it was running but no screen would come up like you said then i went back double checked everything and noticed i forgot to plug inthe 8 pin connector which is 4 on yours

 

[Boomstick777]

sent the board back to ebuyer they confirmed it was faulty and gave me a refund, Then ordered a ASROCK M3A790GXH 128M 790GX AM3 DDR3. Built the pc today and all works perfect very happy with it it flies haven't had time to play games will test that later but glad that its all sorted now lol

 

[jaker]

asus m4a78t-e

all you have to do is update the bios is does not support the am3 without the update

 

[Lucky098]

Yes only you do is update BIOS then it will work fine - when I upgraded from Gigabyte M59SLI-S5 to ASUS M4N82 Deluxe with Ph II X4 965BE then boot up prefect with early version in BIOS then I download and then flash via Windows BIOS (ASUS update) then reboot and it prefect running - dont seen any problems. I put one stick of DDR2-800 first then put 3 stick to 8GB then run so fast - happy with my board and CPU.