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Did you know SATA won't work with big overclock?

C

Chris2wire

Senior member
This computer hobby sure is a learning experiance...

Got an SATA drive cuz.... welll.... theyre cool.

Anyways it wouldn't work cuz of my overclock! Im at 250fsb on my A64, up from the stock 200. After hours of fiddling around I decided hrmmm, lets clock the FSB back down. Then the hard drive works without any problems at all.

Obviously, the performance benefit of an SATA hard drive is not as large as the performance benefit of a FSB overclock so back to the store with the hard drive. El me el sticko with IDE.

Who woulda thunk it? Well, me if I did any research before hand.
 
Have you tried connecting the SATA drive to a SATA controller that operates off of a PCI bus (i.e. non-south/northbridge) while having PCI lock enabled in BIOS?
 
it depends on the motherboard
many motherboards work better with some sata ports than others. if you have no pci lock, though, you are screwed.
 
It would appear my SATA controller is connected to the south bridge which is connected to the PCI etc.

There is a lock, but the southbridge is so heavily affected by FSB overclock (according to Sandra's numbers) that its clear why SATA won't work imimomiom
 
SATA controller is connected to the south bridge which is connected to the PCI
Click to expand...
Uhm no, either the SATA controller is integrated into the southbridge itself (Native SATA) or it's connected to the southbridge via a PCI Bus

I'm gonna assume since you have a southbridge & a PCI lock that you're running a motherboard based on VIA's K8T800 Pro chipset and if that's the case the southbridge is not connected to the PCI bus (not in the way I previously mentioned). The SATA controllers that do run off of a PCI Bus are controllers from the likes of Promise or Silicone Image.

No PCI Bus
Southbridge (VIA SATA controller) > V-Link > Northbridge > HyperTransport Bus > CPU

PCI Bus
e.g. Promise controller > PCI Bus > Southbridge > V-Link > Northbridge > HyperTransport Bus > CPU

EDIT: Added V-Link to chain
 
it does not only depent on the chip itself, but also its revision,

anyway, do you know any fsb speed that could make your pci clock 33Mhz again, if you know one, use it, perhaps u could try 266MHz fsb... but dont blame me if it goes wrong,
other options are,

cool the chip, stick an heatsink on top of it,

try to increase voltage in the bios to the chip (nearly never available in bios, but you could try)

And if you dont have a problem with PATA (ide is both sata and pata, ide is the opposit of scsi) controller than use that one, performce diffirence is minimal, PATA has a little less latency, SATA has more bandwidth (only fully used be burstcache).
 
one thing i noticed with my intel onchip sata controller was that i can't overclock or underclock the pci bus by even 1mhz either way or the system won't boot
my guess is they have instituted some kinda check for this and it makes it not work
 
Same problem on my A64 system, unfortunatly I don't have a PCI-lock.
FSB from 200 to 220 works great, but any higher and the system won't recognise the HD 🙂

An advantage for SATA (atleast for me) is that I can have more drives in my system; WD Raptor, 2x 160GB Maxtor Sata raid0 + 120Gb Pata + 2x optical drive.. And still 3 Sata connectors left..

 
Interesting idea to raise FSB to 266, but eitehr way my comp wont do that.

And yup im on the k8t800 pro, though it does have a pci/agp lock and I did have spread spectrum disabled it still didnt work out...
 
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