hu@smu (09/25/85)
I finally get a seeker S-1 board (by Western automation) to upgrade my total RAM to 768k. But every since I have done so, I can hear strange sound from my computer whenever there is I/O performed in my ramdisk. Will the RAM chips singing? I suspect it is because of the power supply can not handle the peak current demand due to the large amount current drawn by the 512k RAM on the S-1 board. Any suggestion? -Yuhen Hu@smu.arpa
haddock@waltz (09/25/85)
/* ---------- "memory upgrade problem on TIPC" ---------- */ I finally get a seeker S-1 board (by Western automation) to upgrade my total RAM to 768k. But every since I have done so, I can hear strange sound from my computer whenever there is I/O performed in my ramdisk. Will the RAM chips singing? I suspect it is because of the power supply can not handle the peak current demand due to the large amount current drawn by the 512k RAM on the S-1 board. Any suggestion? -Yuhen Hu@smu.arpa Sorry Yuhen, but your suspicions are wrong. The TIPC's power supply is more than enough for 768K (even if 512K is on one board), a winchester, and a coupla more boards stuck in there. Hey, I run a TIPC with a Persyst (512K, serial port, clock) board, a TI serial card, Winchester, display card (with all 3 graphics planes), along with an old speech board. This will fill up every slot in a TIPC with the power hogs being the Winchester (and it's controller), the Speech board, the Persyst card, and the video/graphics board in that order and I haven't had any problems at all with insufficient power in the past two years! Are you doing I/O to the screen??? I've heard some TIPCs that make various noises when the display is written to but never due to RAMdisk activity. I'm not sure what causes this but it's probably an old video display board. Rusty Haddock Computer Science Laboratory Central Research, Development, and Engineering Labs. Texas Instruments Inc. Dallas, Texas ARPA: Haddock%TI-CSL.csnet@CSNet-Relay.arpa or Rusty@Maryland CSNet: Haddock@TI-CSL USENET: {ut-sally, convex!smu, texsun, rice} ! waltz ! haddock DISCLAIMER: These are my opinions and/or experiences (though others may possibly share them as well) and not necessarily those of Texas Instruments Inc.