BIOS UPDATE I need a BIOS update to my Elite Group motherboard C51PVGM-M as I have a AMD Athlon Dual Core 6000+ CPU and it reports as CPU type Unknown in the BIOS, even though it works but it does not displays the right speed, says nothing about the speed.

AsRock Support > AlivenF6G-DVI Motherboard > Main Support page,

http://www.asrock.com/MB/overview.asp?Model=ALiveNF6G-DVI

In the list on the left hand side, click on CPU Support List

http://www.asrock.com/mb/overview.asp?cat=CPU&Model=ALiveNF6G-DVI

The AMD Athlon 64 X2 5800+ CPU, (Processor), is part number ADA5800IAA5DO.
Operates Up To a maximum frequency rate ('Speed'), of 3.0GigaHertz, has two L2 cache's of 512MegaByte, and uses the Socket AM2 CPU socket.

http://en.wikipedia.org/wiki/List_of_AMD_Athlon_64_microprocessors#.22Brisbane.22_.28energy-efficient_65W.2C_G1_.26_G2.2C_65_nm.29

In the CPU Support :List it is not shown.
This is ONLY because the Athlon 64 X2 5800+, came out way after the CPU Support List was compiled. NOT because it isn't supported.

No, I have to amend that,

http://forums.amd.com/forum/messageview.cfm?catid=14&threadid=108319

It's because AMD's lack of information, apparently, that AsRock didn't list it.

I don't see the voltage range listed anywhere. (To include AMD)

http://www.cpu-world.com/CPUs/K8/AMD-Athlon%20X2%205800+%20-%20ADA5800IAA5DO.html

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103274

At any rate let's go with deductive reasoning, and see if this CPU is supported.

1) You can compare the Athlon 64 X2 5800+, to the other CPU's in the CPU Support List; that are comparable to it, and above it.

Don't even have to go too far.
Look at the ADA6000IAA6CZ, and the ADX6000IAA6CZ CPU's.

The two Athlon 64 X2 6000+ versions.
(Doesn't state that, just the above part numbers)

However I DO notice that the ADX requires BIOS version P2.00, and the ADA only requires BIOS version P1.60
(Since BIOS)

2) The motherboard chipset is an Nvidia GeForce 6100 and Nvidia nForce 430, Or Nvidia GeForce 6150SE and Nvidia nForce 430

http://en.wikipedia.org/wiki/GeForce_6_Series#GeForce_6100

http://en.wikipedia.org/wiki/Comparison_of_Nvidia_chipsets#For_AMD_processors

Compatible? Yes.
May need the P2.00 BIOS update, if not already installed.

Regards,
joecoolvette

The motherboard supports AMD socket AM2 single-core Athlon 64/ Sempron and dual-core Athlon 64 X2/ Athlon 64 FX processors with 2MB / 1MB / 512KB L2 cache, which is based on 64-bit architecture. It features 2000 / 1600 MT/s Hyper Transport Bus, dual-channel un-buffered DDR2 800 memory support and AMD Cool 'n' Quiet! Technology.

The BIOS changes it on it's own when add a dual core.

Here is the PDF file on this board. Chapter 2 explains the Bios.

First time I heard that But Maybe your board needs a bios update which I personally wouldn't do unless you really know what your doing. I would buy better ram and more of it and just use the two slots that work.

I am sorry to say but, I think  your prombelm is that the cpu is the wrong size if you want it to run at that pro speed youneed to get a dual core instead a single core and update the bios then lala linda I hope this helps 

AMD Athlon™ X2 Dual-Core Processor
AMD Athlon™ 64 X2 Dual-Core Processor

are the best processors for this motherboard

If the web site for this motherboard does not have a bios update to run this cpu then there is no bios.
It might not support Phenom or higher

this is a link to the download and your bios is the last update
http://support.acer-euro.com/drivers/desktop/aspire_m5100.html

So just because some one said "update the bios" doesnt mean there is a bios that will run it , I believe that this board will handle a 6000 x2 and that is about it.
Sorry hope this clears things up for you

check compatabilty check online for your board chipset on the www.acer.com/support will find the solution for the upgrade cpu compatabilty, gudday !!

Update with latest BIOS, it works.

just update the bios get it from amd driver downloads