All of my IMSAIs (as acquired) had tape (either masking or duct) over to power supply side vents to encourage airflow over the cards. I'm pretty sure that there is a magazine article (or maybe a newsletter) that recommends this but I can't find it with Google. Anyway, in the two cases where the tape was dried out and falling off, I put in new tape in the same way. Bill S. -----Original Message----- From: vcf-midatlantic [mailto:vcf-midatlantic-bounces@lists.vintagecomputerfederation.org] On Behalf Of Richard Cini via vcf-midatlantic Sent: Friday, June 08, 2018 2:23 PM To: vcf-midatlantic Cc: Richard Cini Subject: [vcf-midatlantic] Orientation of vented cover for airflow All - I have a question regarding S100 cabinet airflow. Here's the setup. I just bought a TEi enclosure (12-slot, impeccably clean) on eBay. The power supply is to the right of the card cage, the fan blows inward and it was delivered with the cover installed such that the air vents are on the right (power supply) side. To me, this seems counterintuitive. I would think that the vents should be on the left with the fan blowing out so as to draw air through the card cage, over the power supply and then out the back. On my IMSAI (both sides of the cover are vented) and the fan blows out, but the vents next to the power supply are sealed with tape. Any thoughts on this? Thanks! Rich Get Outlook for iOS<https://aka.ms/o0ukef> --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus