Re: Newly made Retro styled AT/Baby AT Case
Posted on 2021-10-02, 22:39
Sharp looking is not exposed LED holes, etc. Use small translucent parts to make indicators glow nice, behind small pinhole for each LED to look clean. Cheers,
Re: Compaq Deskpro M series. Does anyone know the model No's?
Posted on 2021-10-02, 21:56
I know these Deskpro M series. for 386 it is like 386/xx for 486sx is 486s/xx for 486DX, nothing. Just /xx yours 5/60 and /66 There are 2 types of i/o boards which is replaceable by sliding out. One is with audio, other one without. Then there are 3 types of slots boards, one has buffers between …
Re: What retro activity did you get up to today?
Posted on 2021-10-02, 21:49
pentiumspeed wrote on 2021-10-02, 20:08: Is there a plan I can use for printing out new W1D belts? Cheers,
Re: What retro activity did you get up to today?
Posted on 2021-10-02, 20:08
Is there a plan I can use for printing out new W1D belts? Cheers, Jason
Re: Case Orientation and heat pipes or have my heat pipe failing?
Posted on 2021-09-25, 18:22
Awesome! No fan? Cheers,
Re: tandy 1000
Posted on 2021-09-23, 17:46
Looks like stuck reset circuit and is buzzing too? Can you make sure this reset circuit is working correctly? Or power supply buzzing. Don't overthink over this. Start with basics. Cheers,
Re: What retro activity did you get up to today?
Posted on 2021-09-23, 00:54
I made some special memory :D Could you do a new thead about this video memory modifications? While on non-related vintage repair, I'm researched and now know which balance staff to get for this 1/10 sec lemania based 5000 series stopwatch. This was after fixed the bent hairspring and thought that …
Re: Strategies for troubleshooting low DMA not working on 386 motherboard?
Posted on 2021-09-18, 20:32
DMA, interrupt, clock timers etc are in 82C206 chipset. Replace this will fix the low DMA issues. Cheers,
Re: Case Orientation and heat pipes or have my heat pipe failing?
Posted on 2021-09-18, 20:30
They were soldered together when assembling the heat pipe to various items to make a complete assembly before putting into computers, etc. I did solder a heatsink to improve the loose fins. I used aluminum flux to solder fins back onto copper fins with lead solder. Cheers,
Re: Does the fanless Pentium II Overdrive require active cooling?
Posted on 2021-09-18, 01:42
Intel did have specifications even bare CPU (under 5W if package is ceramic), and for passive heatsink is specified in how much air flow is required. The cooling device is how large is needed is not specified. What all companies do is publish minimum and maximum temps acceptable. How it is cooled is …
Re: Case Orientation and heat pipes or have my heat pipe failing?
Posted on 2021-09-18, 01:35
Heat pipe when working right, should be warm all over over entire length of pipe, *any orientations*. If you feel cold to the touch at 77F when vertical, replace the heatsink. Failed heat pipe is rare but I did find one at work where we repair all kinds of devices, (phones, notebook, consoles, etc), …
Re: Trident TVGA9000C video ram
Posted on 2021-09-16, 16:57
IBM made these memory chips and their IBM memory dies in that package and must had been sold on the open market to rid of excess inventory. Cheers,
mobile HD5450 vs HD5650 MXM cards.
Posted on 2021-09-16, 02:52
I'm making do with what i got is this USFF HP 8200 sandy bridge with MXM slot which is currently 5450 residing. The price is right for HD5650 MXM with HP vbios on it and wattage is slightly higher. How's the upgrade when going with mobile HD5650? Providing this is for running XP doing duty for older …
Re: NSSI shuts down computer with S3 805 VLB?
Posted on 2021-09-16, 02:47
Have other S3 805 card somwhere to try again, not from Jaton? Cheers,
Re: IBM Dual Socket 8 with standatd AT PSU
Posted on 2021-09-15, 17:38
Yes same thing way just like ATX is.
Re: HP Vectra fan pinout
Posted on 2021-09-15, 17:37
When experimenting to bypass the detection. I use 10 to 47 ohms resistors to ground these detection pins. I had to do this to my proliant 1500 and many Dells using 3 pin fan which they do not use tach for this. They ground one pin as long as fan is working but I don't have any dell fans and don't …
Re: Case Orientation and heat pipes or have my heat pipe failing?
Posted on 2021-09-15, 17:32
Yes you blocked the vents at bottom when it is in vertical orientation. There is no vents anywhere for front and back ports. Raise the case above the table on spacers or little stick on feets so there is ventilation to flow into from bottom. Cheers,
Re: Roland RA-50 Mod
Posted on 2021-09-13, 23:21
74HC02 TTL CMOS logic IC obtainable anywhere. Cheers,
Re: Board ID help - Intel 42oEX (Aries) PCI 486 - repost
Posted on 2021-09-12, 03:11
Intel did some chipsets for 386SX and 386DX boards. Not counting the cache controllers (385SX, 385DX and 395DX) chipset intel also produced. Cheers,
Re: What retro activity did you get up to today?
Posted on 2021-09-12, 03:08
Spectre Is correct spelling and this was detailed 2 or 3 years ago on Anandtech website. Not just this, there are another called Meltdown, and few several others that had to be mitigated with time in bios firmware and half in hardware and software layers at first and eventually roll into "future" …
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