On Tue, 2011-04-05 at 12:14 -0700, John R Pierce wrote: > On 04/05/11 11:37 AM, Jimmy Bradley wrote: > > This isn't specifically about cent os, but I am running cent os on > > this machine. I've got a Dell Dimension 2400 desktop pc. I've tried on a > > number of occasions to put a second hard drive in the machine, but I > > can't get the machine to recognize the second drive in BIOS. I'm going > > to try and keep this short and sweet. I've tried all that I know to try. > > I've set the jumpers on the drives to master and slave, I've tried > > setting the jumpers to cable select. I've changed the IDE ribbon cable. > > As far as I know, I've done all the trouble shooting steps that you'd do > > when having this problem. > > > (Googles a bit) Ok, thats a Intel 845GV chipset[1], which supports > UDMA100[2], so you must use 80 wire UDMA style IDE cables or get very > unreliable results. > > wow, thats some old chit. I have some chit, that's older than that. I also have a dell L500R that I acquired from my step dad's mom. She's in a nursing home suffering from dementia, so she doesn't know if it's Monday, or July 4,1776. Anyway, normally I would've just scrapped a machine that old for parts, but I didn't feel like it would be the right thing to do, since she's still alive. So, on a whim, I stuck a 500gig hard drive in it, which the bios saw, and I loaded White box 4 on it, and I use it as a archiving/file storage machine. The machine runs just fine. It's got 512mb of ram in it, and super fast 433 mghrtz intel celeron cpu. It'll run circles around a comodore vic 20, or a TRS 80. Jim > > With UDMA cables, they must be plugged in the correct way, the blue > connector goes to the mainboard, the far end black connector goes to the > 'master' (1st) drive, and the middle gray connector goes to the slave > (2nd) drive. The drives should be jumpered as 'cable select' (but you > /can/ use master/slave jumpering as LONG as they are connected in the > correct order). The connectors should all be 'keyed' by a rectangular > block molded on one side such that you can't plug them in the wrong way. > There also should be a missing pin on the mobo and drives and a > blocked pin on the cable that acts as a key. Both devices on the cable > should be UDMA 100 capable, mixing older technology DMA33 stuff was bad > news and resulted in all kinda funky behavior. > > phew, [1] indicates that system has 2 dimm slots with support for 256M > and 512M dimms (DDR SDRAM), onboard shared memory graphics, and only has > one internal drive bay, and a 200 or 230W PSU. Pentium-4 w/ 400 or > 533Mhz FSB so its probably Northwood generation, circa 2002. The CMOS > battery is likely a ball of toxic green fuzz right now. Frankly, > anything that old, when it starts misbehaving, its time for the recycle bin. > > [1] http://support.dell.com/support/edocs/systems/dim2400/en/sm_en/specs.htm > > [2] page 28 > http://downloadmirror.intel.com/15210/eng/D845GVSR_TechProdSpec.pdf > <http://downloadmirror.intel.com/15210/eng/D845GVSR_TechProdSpec.pdf> > [different board, but same chips and better documentation] > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >