I have a Sony Viao PCV-RX670. My hard drive crashed so I had to install a new one. A friend formatted one that he had and gave it to me. I plugged it in, connections look secure. I turn the computer on and the monitor is stuck in Power Save mode. A few tidmits and some remidies I already tried: The light on the monitor is a solid yellow when the computer is on, but when I turn the computer off, it goes to green. I have no operating system on the Hard Drive so I can't go into safe mode my pressing F8, even though I tried just for kicks. I tried to press F2 and F3 (seperately) to get into Bios and change the power setting, and I still have had no luck. Reminder: This is a new hard drive with no operating system on it. I have the Sony Viao System Recovery disk in the CD drive, but it will not even turn on for that. Many thanks to all who can help. Patrick

Check your video card as not been loosened while your were messing about with the hard disk. I is very easy to loosen it with a knock. The monitor will only go into power saving mode on a signal form the video card or the complete absence of any signal from the video card. Try unplugging the cable from the video card. You will probably get a "Cable Disconnected" message which indicates the monitor is working fine. Stuart

Are you sure your HDD crashed? You should at least be getting the POST screen at bootup...you don't even need a HDD installed for that. If it's not coming up, your problem may not be related to the HDD. It could be the CPU, video or PSU.

I second Jam's post.

"My hard drive crashed so I had to install a new one. A friend formatted one that he had and gave it to me. " If you are going to be installing XP again, or re-installing the original brand name system software, a new blank hard drive does not have to be partitioned and formatted beforehand. If you run Setup from a regular Windows CD, or if you use the Restore or Recovery CD set for your brand name system model, that will be done at the beginning of Setup, or at the beginning of the Recovery procedure. "The light on the monitor is a solid yellow when the computer is on, but when I turn the computer off, it goes to green." The led on most monitors is green when you first turn it on, but if no video signal is detected when you boot your computer it will turn to another color in a short time, which may be what it also does when the system goes into Standby or Hibernate modes, or if you don't boot the computer it may also turn to the other color after a set number of seconds. A monitor cannot set itself to Standby or Hibernate or "power save" mode on it's own - it has to get a command from the mboard or the operating system in order to do that. It is a lot more likely you have another problem, such as StuartS and jam have mentioned. If can you connect the monitor to a working computer, chances are close to 100% you will find there is nothing wrong with the monitor. Why did you think your original hard drive has died? What were your symptoms? E.g. If the computer did not boot at all.... Failing power supplies are common and can cause your symptoms. Check your PS. See response 4 in this: http://www.computing.net/hardware/w... That's a lot more likely than a hard drive failing, and is probably the most common reason a computer fails to boot. The PS may work partially, in which case the power led, the hard drive led, and the led on the mboard may light up, the fans connected to the mboard may spin, and the hard drive(s) may spin, but nothing further may happen. If it is dead, you will see no lit up leds, no fans will spin, and no hard drive(s) will spin. "I tried to press F2 and F3 (seperately) to get into Bios and change the power setting, and I still have had no luck." The mboard bios on a working mboard will not go into a "power saving" mode in any case when you first boot. If you have no display, you can't see anything in the bios anyway. If you do have a display, are you sure one of those is the right one to get into the bios? Did you try repeatedly tapping the key, starting very shortly after the mboard first boots? ..... If your system appears to be booting - you are getting the normal one beep from the mboard, the leds are turning on, the fans and the hard drive are spinning, if you have both an onboard video port and a video port on a card in a slot, the monitor must be plugged into the port on the card in the slot - in that case the onboard video is automatically disabled and you will get no display if you connect to monitor to it.