Re: CF Card Through IDE - SLOW!
Posted on 2015-09-20, 17:42
Does your CF adapter have jumpers to switch between 3.3 and 5V? There should be a voltage regulator chip too (or two diodes, on cheap adapters). If not, it's most likely running at 5V.
Re: CF Card Through IDE - SLOW!
Posted on 2015-09-20, 16:02
What voltage are you supplying to the card? Some (many?) CF cards require 3.3V for DMA mode, and default to slow IDE/PIO mode on 5V. The DRQ/DACK signal lines must also be present on the CF->IDE adapter in order to support DMA mode. On older/cheap adapters these were often omitted.
Re: Bought these (retro) hardware today
Posted on 2015-09-17, 20:19
Re: Do you own any CRT monitors for your retro stuff?
Posted on 2015-09-16, 13:04
kixs wrote: 14" Samsung SVGA What model?
Re: List of ISA sound card - what do you recommend?
Posted on 2015-09-14, 11:40
jesolo wrote: my understanding is that these cards are a bit on the noisy side >a bit
Re: What game are you playing now?
Posted on 2015-09-12, 22:17
I like the way this looks in 40-column over composite. And aaargh this game is too addictive. My best so far, who can beat me? 😀 (Epyx v1.49 btw)
Re: What retro activity did you get up to today?
Posted on 2015-09-10, 19:59
Hacked my IBM 5150 mainboard to disable onboard memory and parity checking :) Nice job. I'm guessing you did this to use an external 8 bit memory card instead? That's right, although I disabled the on-board memory mainly so I could drop these chips in another computer. Only after modding and …
Re: A tale of two PSUs
Posted on 2015-09-10, 19:56
Yep, and also checked the big caps inside, they're all <0.05 ohm ESR. Could probably last another 30 years without servicing 😀 My brand new seasonics look bad in comparison...
Re: Disk on Module / DOM Recommendations
Posted on 2015-09-08, 17:40
Wouldn't a decent partition tool in a modern system be able to align partitions, even if its a FAT one? Windows 2K/XP/7 doesn't. Mkdosfs claims to do it, but really doesn't. Sorry to correct you but windows 7 does align a partition. Only exception are striped raid setups.. Tested lots of them after …
Re: Disk on Module / DOM Recommendations
Posted on 2015-09-08, 14:09
alexanrs wrote: Wouldn't a decent partition tool in a modern system be able to align partitions, even if its a FAT one? Windows 2K/XP/7 doesn't. Mkdosfs claims to do it, but really doesn't.
Re: Disk on Module / DOM Recommendations
Posted on 2015-09-08, 14:02
philscomputerlab wrote: What's the process for aligning partitions? For NTFS, make sure the partition starts at a block boundary, and set the cluster size to a multiple of the physical sector (page) size. For FAT, run FORMAT C: and keep your fingers crossed. Hopefully your clusters will end up in …
Re: Acer 500+ XT system
Posted on 2015-09-08, 13:34
Great to see you got the card, and it works! Awesome 😀 I'm still curious why the hacked mainboard part didn't, though...
Re: What retro activity did you get up to today?
Posted on 2015-09-07, 23:40
Hacked my IBM 5150 mainboard to disable onboard memory and parity checking 😀
Re: A tale of two PSUs
Posted on 2015-09-07, 19:11
Copy code to clipboard 1 Rail | DC (V) | AC (mVpp) 2 -----+--------+----------- 3 +12V | +12.04 | 27.5 4 -12V | -11.87 | 20.0 5 + 5V | + 5.00 | 22.5 6 - 5V | - 4.99 | 3.0 Looks like IBM picked some pretty decent caps for their 5150 PSU...
Re: Writing images to IBM PC disks...
Posted on 2015-09-05, 17:51
Have you tried Imagedisk's TESTFDC on the Aptiva with DD drive? At least 250k MFM mode should work... I can't add anything of value to the op's problem but I can write 360kb disks on my 386DX's 1.2MB drive and read them correctly on my Acer XT system that has 2x 360kb drives. Both "just files copied …
Re: Bought these (retro) hardware today
Posted on 2015-09-05, 16:40
dogchainx wrote: VGAWonder 2 ISA card 😳 Does this card support VGA emulation on 5151 monitors? Marmes wrote: Bought this : Nice find!
Re: How to set jumpers on Chinon 5.25" drive?
Posted on 2015-09-05, 16:34
Since this is the top result on Google for this drive, I'll add the correct jumper settings here: TM: closed for drive A, open for drive B DS0: open DS1: closed DS2: open DS3: open IU: open MS1: closed D-R: closed MS2: open TM are the termination resistors, which must be enabled only for the last …
Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?
Posted on 2015-09-04, 13:08
Photobucket pics no longer load for me either, I can only see them on firefox for some reason.
Re: What retro activity did you get up to today?
Posted on 2015-09-02, 18:43
brassicGamer wrote: jwt27 wrote: Don't worry guys, I uh, think I know what I'm doing... I'm having trouble deciphering this image. Is there some kind of servo arrangement involved? It's a floppy drive, I removed the top head. Normally you wouldn't touch this since it takes ages to get it all …
Re: What retro activity did you get up to today?
Posted on 2015-09-01, 19:13
Don't worry guys, I uh, think I know what I'm doing...
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