HDDerase - Secure Erase - HPA/DCO Set Max Address
Posted: Wed Jul 08, 2009 4:51 pm
Hi, i am using ubcd 4.1 and a tool im sure you are familiar with called HDDerase. the problem is when im coming to erase the HPA/DCO.
i get the following message.
"Only one Set Max address command per power-on or hardware reset
Please power off your drive and re-run HDDerase.exe to finish resetting the HPA"
i reboot by physically switching the machine off, then go through all the options again, only to find that the special diagnostic sectors still exist, and asking me again if i would like to reset it, so i do, and the same thing happens.
am i missing something? will the HPA or DCO be enforced within the cmos? if so what should i be looking for to switch it off?
that is my main question, i do have another with selecting memory management, there are several options.
0. Boot Clean
1. Boot UMBPCI (optimal)
2. Boot UMBPCI (semi-defensive)
3. Boot EMM386 (optimal)
4. Boot EMM386 (semi-defensive)
5. Boot no UMB (defensive)
6. Boot no UMB (ultra-defensive)
Singlestepping: OFF.
which one should i pick? can someone explain what they mean? and what Singlestepping means?
also, is there a way to recover the sectors allocated to HPA or DCO for normal use? does this tool reset the max address to the actual physical size permanantly?
Thanks in advance
i get the following message.
"Only one Set Max address command per power-on or hardware reset
Please power off your drive and re-run HDDerase.exe to finish resetting the HPA"
i reboot by physically switching the machine off, then go through all the options again, only to find that the special diagnostic sectors still exist, and asking me again if i would like to reset it, so i do, and the same thing happens.
am i missing something? will the HPA or DCO be enforced within the cmos? if so what should i be looking for to switch it off?
that is my main question, i do have another with selecting memory management, there are several options.
0. Boot Clean
1. Boot UMBPCI (optimal)
2. Boot UMBPCI (semi-defensive)
3. Boot EMM386 (optimal)
4. Boot EMM386 (semi-defensive)
5. Boot no UMB (defensive)
6. Boot no UMB (ultra-defensive)
Singlestepping: OFF.
which one should i pick? can someone explain what they mean? and what Singlestepping means?
also, is there a way to recover the sectors allocated to HPA or DCO for normal use? does this tool reset the max address to the actual physical size permanantly?
Thanks in advance