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Technophobe · 06-10-2006, 07:26 AM

WRT Larger drive I have had 4 x 250Mb Quantum 2500BB drives running in a 4100 without problem. The big issue is start up current. I have noticed that my 4100 DOES NOT spin-up all the drives at the same time, but each one comes on after a short delay (app 10 secs) after the previous one. Maybe there is a BIOS tweek that could lengthen the delay as the bigger drive do take longer to come up to speed. The other thing to check is not the total power budget, but the power requirements on each supply voltage as it is likely to be the 12V supply that is pulling too much current. If so an additional 12V onlt supply may give the extra necessary to keep the supply up during start-up. Some drive can pull 2-4 Amps on the 12v supply for the first few seconds, that's a lot of (peak) power worst case over 200W plus the 5v supply of perhaps another 50W .......

06-10-2006, 07:26 AM	#56
Technophobe Cooling Neophyte Join Date: Jun 2006 Location: UK Posts: 16	Re: Snap 705N/4100 lives and thrives! WRT Larger drive I have had 4 x 250Mb Quantum 2500BB drives running in a 4100 without problem. The big issue is start up current. I have noticed that my 4100 DOES NOT spin-up all the drives at the same time, but each one comes on after a short delay (app 10 secs) after the previous one. Maybe there is a BIOS tweek that could lengthen the delay as the bigger drive do take longer to come up to speed. The other thing to check is not the total power budget, but the power requirements on each supply voltage as it is likely to be the 12V supply that is pulling too much current. If so an additional 12V onlt supply may give the extra necessary to keep the supply up during start-up. Some drive can pull 2-4 Amps on the 12v supply for the first few seconds, that's a lot of (peak) power worst case over 200W plus the 5v supply of perhaps another 50W .......