Does anyone know how to do Suspend to RAM/Disk with FC3?

I have an HP xe4560 notebook (Athlon XP-M 2500 with 512 MB DDR). Suspend to RAM seemed to work with FC3 ("echo 3 > /proc/acpi/sleep"). However, once the machine goes into the suspend mode, I can't get it back other than a cold reboot.

A couple a days ago, I bought a thin-and-light notebook (Avertec with Athlon XP-M 2200). Suspend-to-RAM works flawlessly with Windows XP/Home. Before I overwrite it with FC3, can anyone tell me whether it may allow the suspend to RAM/Disk operation?