I've got a new build that won't post unless one particular memory stick is in one particular memory slot.
The parts:
GA-M55PLUS-S3G, Rev 1.2, BIOS F7
Corsair TWIN2X2048-6400 (two sticks of CM2X1024-6400, 5-5-5-15-2T, 1.9V)
Athlon 64 X2 4600+
Antec SmartPower 2.0 500W
PNY GeForce 7900 GS
When it doesn't post, the CPU and video-card fans rev fast, then slow, then the mobo gives one long beep (ram trouble, according to the mobo manual). The cycle of fans revving and mobo beeping repeats until I power the system off.
Of the two sticks of Corsair ram, one will not work no matter which memory slot it is in. The other stick will work, but only if put in the fourth (farthest from CPU) memory slot. It then posts, runs memtest86+ flawlessly, and runs Linux without a hitch.
I borrowed a stick of DDR2 ram from work (Aeneon AET76OUD00-30, 5300, 1GB, 1.8V, unknown timing). It also posts, runs memtest86+ and Linux, but only in the fourth memory slot. In any other memory slot, I get to listen to revving fans and a beeping motherboard.
I exchanged that mobo for another of the same make and model; the problem remained the same.
Any ideas?
The parts:
GA-M55PLUS-S3G, Rev 1.2, BIOS F7
Corsair TWIN2X2048-6400 (two sticks of CM2X1024-6400, 5-5-5-15-2T, 1.9V)
Athlon 64 X2 4600+
Antec SmartPower 2.0 500W
PNY GeForce 7900 GS
When it doesn't post, the CPU and video-card fans rev fast, then slow, then the mobo gives one long beep (ram trouble, according to the mobo manual). The cycle of fans revving and mobo beeping repeats until I power the system off.
Of the two sticks of Corsair ram, one will not work no matter which memory slot it is in. The other stick will work, but only if put in the fourth (farthest from CPU) memory slot. It then posts, runs memtest86+ flawlessly, and runs Linux without a hitch.
I borrowed a stick of DDR2 ram from work (Aeneon AET76OUD00-30, 5300, 1GB, 1.8V, unknown timing). It also posts, runs memtest86+ and Linux, but only in the fourth memory slot. In any other memory slot, I get to listen to revving fans and a beeping motherboard.
I exchanged that mobo for another of the same make and model; the problem remained the same.
Any ideas?