ecs K75SA (r3.1) won't boot with Athlon 1400 MHz

[Someone30]

Same issue with an Athlon 1333 or 1400 MHz MHz CPU. It boots fine with a AMD 900 MHz and Duron 1000MHz. The board is revision 3.1. It should support both os these CPU's according to the ECS website.

http://www.ecs.com.tw/ECSWebSite/Support/CPU_Support_Model.aspx?detailid=192&MenuID=69&LanID=9

What I have tried is clearing the jumper to clear the CMOS and also ensuring the board has the latest BIOS version.

Any ideas

 

[o1die]

Are you using sdram? If you are, try regular ddram in pc2100 or pc2700.

 

[evongugg]

You might need a Bios update with an older processor first.

 

[Someone30]

Thanks for the reply. I was using SDR RAM and changed to a DDR stick and the system booted once with the 1333 chip and then hung when trying to get into the BIOS. On following system resets no POST. I then tried the 1400 MHz CPU and the system seems to boot fine with no issues but the CPU is registering as a 1050 MHz and when trying to get into the BIOS and CPU... option menu it won't let me change the multiplier for the CPU. Any ideas ? I've tried reflashing with an slower CPU i.e. 900 MHz but still same issue. Any ideas ?

 

[Someone30]

Does anyone know whether its safe to flash the BIOS to an older version (i.e. previous one) to see if that might correct the issue ? Thanks.

 

[rolli59]

Is the frontside bus set correctly? I remember on my old K75A and xp1800+ that every time bios got reset it would downclock the frontside bus but not change the multiplier.

 

[o1die]

Change your cpu fsb to 133.

 

[Someone30]

How and where in the BIOS can I change the FSB ? If I go into the BIOS if this is the only option then whats missing is that all of the options under the CPU PnP setting cannot be changed. I cannot move to the different settings at all. Only into this menu options and out and thats it.

 

[rolli59]

I just read in the manual (still downloadable from ECS webside) that you can change the processor speed not the front side bus speed.
There are 2 versions of athlon 1400Mhz one with 200 and another one with 266 Mhz front side speed that would show up in BIOS as 100 or 133 because of double data rate. Try changing the processor speed.
Link to Manual
http://www.ecs.com.tw/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=279&DetailName=Manual&DetailDesc=&CategoryID=1&MenuID=6&LanID=9

 

[Someone30]

Thanks everyone problem solved.

Your looking at the biggest *retar#* on this forum. I went once more into the BIOS settings because there are only two jumpers for this board (J1 & J4) and neither of them have to do with CPU settings or memory settings. I actually read this time how to change the DRAM frequency correctly by using the PgUp and PgDwn keys. The DRAM settings is the one that gets the focus by default when you enter the CPU and PnP Setup in the BIOS. You cannot move anywhere else. It worked CPU is clocked at its correct speed and thats 1400 MHz.

Sorry guys. I'm just not used to AMI BIOSes and in my opinion are not as friendly as AWARDS. I have not owned hardly any boards sporting the AMI BIOS. Only back in the days do I remember 486 boards having them. I also remember having one board having the Phoenix BIOS.

Cheers