Asus A8R32-MVP Overclock With 3800 x2 Problem

Tom|Nbk

Tom|Nbk

Tom|Nbk

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Joined
12 Mar 2006
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My Spec's;

Amd 3800+ 64 X2
Asus A8R32-MVP Deluxe
Ati x1900xt 512mb Powercolor
1gb PC3200 Elixir (Ocuk Value) 2x 512mb sticks dual channel
Freezer 64
Hiper 580w Type-R Psu
Thermaltake Armor

hey all i have just got this board with my 3800 x2

i have 2x 512mb of pc3200 ram

i did an overclock to 2.4ghz temps were fine through windows, i had set a divider on the board for the memory of 166 so it hit 200mhz when i overclocked the fsb to 240mhz and was running a multiplier of 10.0x. i benched, torture tested everything etc then shut it down for the night, woke up the next morning switch on the rig and boom, hang! the system hanged and i turned it off then on again and it got past the bios screen but it said overclocking failed! press f1 to run setups blah blah , but this is totally puzzling as just the other night i had been shutting down restarting etc etc. i have just tried it again and it still hangs on 2.4 but i was perfectly stable on this last night!. anyone shed any light on this?
 
Read the A8R32 thread on the motherboards section regarding this problem. Pretty sure it cropped up on there at some point.

May be worth asking the question there as well - some very helpful people in that thread.
 
BubbySoup said:
Read the A8R32 thread on the motherboards section regarding this problem. Pretty sure it cropped up on there at some point.

May be worth asking the question there as well - some very helpful people in that thread.
Click to expand...

i have done just now waiting for a respone :o
 
Did you get this sorted in the end? I had exactly the same problem until I set all the RD580 and HTT stuff as per the Crossfire 3200 guide that is floating around the forums.

IE setting them to optimal etc
 
If you flashed the 0404 bios, do it at least 3 times, then set the jumper to clear and remove the battery for 10 minutes. My first bios flash really screwed my overclocks, I could not lower the multiplier from 12X, the board just would not post. So I downloaded the bios from Asus USA, reflashed 3 times using the Asus update in XP, worked fine after, overclocked pretty well too.
 
raja said:
If you flashed the 0404 bios, do it at least 3 times, then set the jumper to clear and remove the battery for 10 minutes. My first bios flash really screwed my overclocks, I could not lower the multiplier from 12X, the board just would not post. So I downloaded the bios from Asus USA, reflashed 3 times using the Asus update in XP, worked fine after, overclocked pretty well too.
Click to expand...

I was goning to say. Yeh flash the Bios to the latest version.

It fixes a few problems according to Anandtech http://www.anandtech.com/mb/showdoc.aspx?i=2743
 
The problem is that 0404 won't always work properly with just 1 flash, you need to do it a couple of times (3 is better) to make sure all the old settings are fully erased. I have had experience with this issue, the only way I fixed it was to flash 3 times.
 
raja, not disputing what you're saying as i i'm very aware you know your stuff, but how can it take 3 times to fully flash a bios? I wonder if clearing cmos before and after a single flash will do the trick?
 
why don't you try it?

I suggested 3 times for security, to make absolutley sure, not because it makes more theretical sense than flashing once.

It is wise though to clear the CMOS before restarting into bios defaults by using the jumper and renmoving the battery for a few minutes with no power applied to the psu.
 
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I ended up having to do it about 4 times last night anyway :P

I wonder if you can give me any some advice as your around?

I managed to corrupt the bios by setting the FSB to 270.

I'd dropped the CPU multi and the RAM divider down so it wasn't that causing the problem. I have no problem hitting 260 since applying all the settings recommended in the 3200 crossfire overclocking guide that's been kicking around.

RD 580 HT PLL Control = High Speed

and the other 2 set to optimal and 16bit.

Just trying to work out why I can't reach 270 as i'm after 280+ for when I get an opteron 146. At the moment i'm running a winnie 3200 with a crap memory controller. Do you reckon this could be causing the problem?

Thanks for any advice.

Dom
 
DomA said:
I ended up having to do it about 4 times last night anyway :P

I wonder if you can give me any some advice as your around?

I managed to corrupt the bios by setting the FSB to 270.

I'd dropped the CPU multi and the RAM divider down so it wasn't that causing the problem. I have no problem hitting 260 since applying all the settings recommended in the 3200 crossfire overclocking guide that's been kicking around.

RD 580 HT PLL Control = High Speed

and the other 2 set to optimal and 16bit.

Just trying to work out why I can't reach 270 as i'm after 280+ for when I get an opteron 146. At the moment i'm running a winnie 3200 with a crap memory controller. Do you reckon this could be causing the problem?

Thanks for any advice.

Dom
Click to expand...

Using a divider, if your ram is not capable of that speed @ 1:1 (200mhz) should work but there are many variables. Or you need better/faster ram.
USe the A64 overclocking calulator if you need it, work out the effective ram spped with the divider, then see if your ram is known to overclock to that speed. You need to then work out which timings are too tight for it to run.
The rest is down to the cpu and it's overclocking ability, using divders and lower multipliers could cure it, then again you may be wasting time, money and effort for little gain.

It's really a question to raise again in the overclocking section of the forum..
I'm not a hardened overclocker, still earning myself, I have experience with the board yes, but the rest is down to your learning curve. Maybe needs a title change..
 
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Tom|Nbk said:
raja also you seem to know a lot about this board, how exactly does the over voltage work for the vcore
Click to expand...


Tom it's in the manual I'm sure..

You can set vcore enable in bios to 100mv or 200mv.

You can lower the vcore option from 1.4v downwards if you have a dual core cpu.

Say you want 1.45 volts, you would move vcore down to 1.35 then add 100mv using vcore overvoltage.

However, if you are having problems working this out, I would suggest you

1) Study the bios and manual properly.

2) Read the ATI overclocking guide posted earlier the a8r32 thread.

3) Read up as much info as you can about overclocking, before you stress/kill your cpu with too much voltage.

Of course if you're already a seasoned overclocker I'm suprised you missed the over voltage function in the first place. I would not want you to damage an expensive cpu, without knowing what you're upto first..

Regards
Raja
 
Unfortunatley the launch of the DFI board has killed the interest of the serious overclockers in this motherboard (for the time being). I would suggest if you really want to use this board, to enrol over at xtremesystems, there are still guys over there using the board, some of them are very experienced with squeezing out overclocks, they will be of more help than me in this department.
 
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