First off systems spec:
ASROCK dual sata2
Opteron 146
2GB Corsair XMS3200C2PT (2-3-3-6-1T) (MY-079-CS)
X800gto2
Up until recently I had been using the OCWB beta2 BIOS to run my 146 @ 2.8GHz with the memory on a 133 divider meaning that the RAM was running at 186MHz, well within it’s spec. I then updated the BIOS to the official 1.6 ver, meaning that I get a HTT limit of 274. I ran the CPU @ 2.74GHz and the RAM on a 133 divider (182MHz). In both cases above I was able to run the RAM at 2-3-3-6-1T with no problems.
I’ve since updated the BIOS to the official 1.9 as this removes the 274 HTT limit, meaning I can have a play over clocking a bit more with an official BIOS. This has now caused me no end of problems!
With both sticks of RAM in I can no longer over clock past 2.5GHz. At a first guess I think most people would put it down to the new BIOS, however I have been back and forth between versions 1.5, 1.6, 1.9 and OCWB beta2 and non will let me over clock past 2.5GHz, so I don’t think it’s the BIOS. I tried dropping the RAM divider to 100MHz to no avail. I tried loosening the timings to 3-4-4-7-2T and still I couldn’t get past 2.5GHz (it’s actually 255 x 10).
I pulled one of the sticks of RAM and viola, I can hit 2.8GHz again with one of the sticks. But the other will just not go past 2.5GHz. I tried it in all of the slots on the motherboard and it makes no difference.
So can anyone explain why this is the case? Both sticks will do 200MHz in sync with the CPU (HTT at 200 and RAM divider at 200), but if I put the RAM on a divider one of the sticks gives up at HTT 255 on a 133 divider, which is 169MHz, well within it’s spec.
Now I don’t know if this is a motherboard or RAM problem, I can’t say that one of the sticks is duff as it will run at 200MHz if in sync with the CPU. So why won’t it run at 186MHz when on a divider? It has done before now, the other stick still does! So is it duff RAM? Has the BIOS update somehow screwed the Mobo up? Why does not rolling back to an old BIOS version not allow me to go past 2.5GHz as it did previously?
Sorry for the long post. Any theories or questions welcomed.
Kev
ASROCK dual sata2
Opteron 146
2GB Corsair XMS3200C2PT (2-3-3-6-1T) (MY-079-CS)
X800gto2
Up until recently I had been using the OCWB beta2 BIOS to run my 146 @ 2.8GHz with the memory on a 133 divider meaning that the RAM was running at 186MHz, well within it’s spec. I then updated the BIOS to the official 1.6 ver, meaning that I get a HTT limit of 274. I ran the CPU @ 2.74GHz and the RAM on a 133 divider (182MHz). In both cases above I was able to run the RAM at 2-3-3-6-1T with no problems.
I’ve since updated the BIOS to the official 1.9 as this removes the 274 HTT limit, meaning I can have a play over clocking a bit more with an official BIOS. This has now caused me no end of problems!
With both sticks of RAM in I can no longer over clock past 2.5GHz. At a first guess I think most people would put it down to the new BIOS, however I have been back and forth between versions 1.5, 1.6, 1.9 and OCWB beta2 and non will let me over clock past 2.5GHz, so I don’t think it’s the BIOS. I tried dropping the RAM divider to 100MHz to no avail. I tried loosening the timings to 3-4-4-7-2T and still I couldn’t get past 2.5GHz (it’s actually 255 x 10).
I pulled one of the sticks of RAM and viola, I can hit 2.8GHz again with one of the sticks. But the other will just not go past 2.5GHz. I tried it in all of the slots on the motherboard and it makes no difference.
So can anyone explain why this is the case? Both sticks will do 200MHz in sync with the CPU (HTT at 200 and RAM divider at 200), but if I put the RAM on a divider one of the sticks gives up at HTT 255 on a 133 divider, which is 169MHz, well within it’s spec.
Now I don’t know if this is a motherboard or RAM problem, I can’t say that one of the sticks is duff as it will run at 200MHz if in sync with the CPU. So why won’t it run at 186MHz when on a divider? It has done before now, the other stick still does! So is it duff RAM? Has the BIOS update somehow screwed the Mobo up? Why does not rolling back to an old BIOS version not allow me to go past 2.5GHz as it did previously?
Sorry for the long post. Any theories or questions welcomed.
Kev
