waashk/20ng huggingface dataset:
In article <1993Apr23.142720.25002@spartan.ac.BrockU.CA>, tmc@spartan.ac.BrockU.CA (Tim Ciceran) writes: >  > After reading many postings concerning hard drives I'm still unclear > about one thing.  These new "cached hard drives" - is the cache on the > drive itself or is it separate, like on the controller or something? > Thanks to anyone who can clear this up.  I have two SCSI hard drives, each has 512KB of 'cache'.  There several reasons for this :-  When the drive has read requested data from the disk the SCSI bus may be busy. This data needs to be stored some where until the bus is free and the data can be transmitted.  When the drive receives data to be written, the data can come down the bus faster than the drive can write it to the disk. It needs to be stored somewhere while the disk is writing it out.  In these situations the memory is being used as a buffer NOT a cache!  May be the drive does some read-adead caching as well...  >  > --  >  > TMC > (tmc@spartan.ac.BrockU.ca) >   Guy
goyal@utdallas.edu (MOHIT K GOYAL) writes:   >Can anyone tell me if this card works with the March OS/2 2.1 beta?   I believe so, since the Buslogic cards have proven to be very  reliable in OS/2 2.0....  >Where do I get OS/2 drivers?   Endusers (not OEM manufactures) will get all the software package with the card which includes drivers for Novell, OS/2, Unix & Xenix and so forth.  >Does this card work with the Toshiba 3401B cdrom? (in DOS or OS/2)   Definitely.  >Here is my setup: >quantam SCSI hd >toshiba 3401B cdrom  >I'm considering the 542B because I have been told BusLogic's support is  >better than Adaptecs and that the 542B performs better than the 1542C. >Anyways, I just want to know if the 542B will work in OS/2 & DOS with my >above peripheals.
In article <1993Apr21.061246.11363@ucc.su.OZ.AU>, montuno@physics.su.OZ.AU (Lino Montuno) writes: > This may be a very naive question but is there any basis for the > claim that a CPU will get hotter when a computationally intensive  > job is running? My friend claims that there will be little difference > in the temperature of an idle CPU and a CPU running a computationally > intensive job.  It first depends on what an idle cpu is doing!  I'm not sure about DOS, but many multitasking OSs have an loop like this   loop: 	is there anything to do? 		YES -> do it; goto loop 		NO  -> goto loop   The CPU is not doing any work but it is still processing instructions...  It will also respond to interupts...  >  >  > Lino Montuno  Guy
I have a 486 machine with a 3.5" A: drive and a 5.25" B: drive.  I want to swap them so 3.5" drive is A:  What do I have to do?  TIA
AAAHHHH!!!!!  Please someone tell me what I have done!!!  My 40 Meg miniscribe (8450AT) has a big sticker on the side that says  ***DO NOT ROTATE INTERRUPTER** --->  (big knob here)  A big knob sticking off the side of the drive is pretty hard NOT to turn when removing the drive!  I turned it.   Now the drive won't spin up!  Even with no data or controller cables plugged in.. just power... it won't spin up!!  Please help!    Thanks   -- -Paul Carroll
In article <1qte10$kn5@usenet.INS.CWRU.Edu> ab245@cleveland.Freenet.Edu (Sam Latonia) writes: > >I can't imagine why someone would leave their computer on all of >the time to start with. Its like leaving your lights tv, radio >and everything in the house on all of the time to me.....Nuts   We have plenty of computer labs where the computers are left on all the time. I don't see any shorter lifespan than the ones we have in the offices which does get turned off at the end of the day. In fact, some of the computers in the labs have outlived some of the same ones in the offices. But it goes both ways so can't conclude anything.
What do I need to do to configure this drive as a slave? Model# CP30101G  Please reply via e-mail. Thanks!!
I'm thinking of splashing out on a new motherboard for my PC. I am running Linux as my main OS, with a small DOS partition left for my flatmates' games.  My current setup is a 386SX-25 (AMD) with 387SX-25 (ITT - I think) and 9 Mbytes of 70ns SIMMS, and (120+100)Mbyte IDE.  Basically I have two choices  1) Get a 386DX-40 + 387DX-40  or 2) Get some sort of 486.  Unfortunately I live in the UK where computer prices are far too high. The first option works out at about \pounds 200. 486 m/boards start at this price for a SX-25.  I have a couple of questions.  1) How much of an improvement in speed should I notice if I get a 386DX+copro. Remember I'm using a 32 bit OS, and alot of Floating Point operations.  2) How much faster would a 486DX-33 be than the 386DX-40+copro ?  Should I get an upgradeable m/board with a 386DX-40 and wait for AMD/Pentium price pressure to reduce the costs of the 486 ?  	Any experiences will be most helpful ...  		Kenny.  PS. Example prices:  	386DX-40+copro M/board	~$270 	486DX33	M/board		~$580  ----------------------------------------------------------- Kenneth MacDonald		E-mail kenny@castle.ed.ac.uk Dept. of Geology & Geophysics University of Edinburgh		Scotland
>the Mitsubishi.  I also reviewed a new Nanao, the F550iW, which has just >been released.  Last year for the May '92 issue of Windows, I reviewed  Do you have the specs for this monitor?  What have they changed from the F550i?   Do you know if their is going to be a new T560i soon? (a T560iW?)
Can someone tell me the maximum horizontal and vertical refresh rates of the NEC 5fgx.(not the 5fge)
In article <4903@eastman.UUCP> lrxi00@icts01.Kodak.COM (James Nonnemacher) writes: >Is there enough experience out in netland with DOS 6.0 that anyone could make some comments on whether >or not it's a worthwhile upgrade? Any problems with hardware compatibility or any bugs been found? > >One thing I wonder about is the disk doubler included with DOS 6.0. Is there any possiblity that if >the disk double .exe file gets corrupted your disk would be unreadable? How would one recover from >such an event?  The file that would be a problem is DBLSPACE.BIN, not .EXE.
Hi netters! 	I'm looking for books that showing how to fix your own hardware problem. 	Please let me know if you have any books in mind.  Thanks.
Hi,  I recently got a tower-case for my Gateway 486/33 file server, mostly because we needed the extra drive bays and better power supply.  This case has LED's for the processor speed, i.e. 33.  Is there a place to plug this in on the motherboard?  If not, is there anyway to hack something to make it work?  TIA!  -Eric
vacsc0qe@VAX.CSUN.EDU wrote: : I just bought a new IDE hard drive for my system to go with the one : I already had.  My problem is this.  My system only had a IDE cable : for one drive, so I had to buy cable with two drive connectors : on it, and consequently have to switch cables.  The problem is,  : the new hard drive's manual refers to matching pin 1 on the cable : with both pin 1 on the drive itself and pin 1 on the IDE card.  But : for the life of me I cannot figure out how to tell which way to plug : in the cable to align these.    Most IDE drives that I have dealt with have had pin 2 labeled on the printed circuit board (this is sufficient to determine which side is which).  If your IDE drive does not have a label, then you can look for a polarization notch in the receptacle (the connector on the drive with the pins).  If the receptacle is center polarized, that is it has one rectangular notch about 4 mm wide positioned in the center of one side, then you can identify pin 1 as follows: look into the pins with the notch at the top, pin 1 is at the top right.  On all drives I have seen this is toward the power connector.  As for which pin is pin 1 on the controller, well you can use the same criteria but look hard for the labelling of any pin.  Once you know which end pin 1&2 are on or pins 39 & 40 (the oposite end), then you are all set.  All you need to do is keep the pin 1 end connected to the pin 1 end.  You don't even have to look at the cable itself.  Just trace the pin 1 side of the cable through.  Usually the pin 1 of the cable is identified by a different color (red usually).  But beware - many cable makers are not very careful about this - I have seen cables with pin 40 being the one marked red.  Of course with non-polarized connectors this doesn't matter - you can plug the cable in either way and YOU decide which side is pin 1.  : Secondly, the cable has like a connector at two ends and one between them. : I figure one end goes in the controler and then the other two go into : the drives.  Does it matter which I plug into the "master" drive : and which into the "Slave"?  any help appreciated.  thanks...  It doesn't matter what gets plugged where.  But it does matter how the drives are jumpered.  There will be (amongst other options) two jumpers that you should be concerned with on BOTH drives.  One jumper will select whether the drive is the slave or the master.  If it is the master, then a second jumper selects whether or not a slave is present.  You will have to consult the  docuementation that came with you drives.  If you do not have docuementation, then just call the manufacturers hotline number or fax number if they have one.  This kind of information is routinely needed by people just like yourself.  They will fax you complete info about the jumpers.  If you don't have convenient access to a fax machine, then you can usually get voice help.  Or post the specific question to this group.  (I probably won't be able to help you).  Good Luck
Hi all, Of late my computer's Power supply fan has begun to make a lot of noise. What can I do about this? If I had to get new power supply, or get a new case, where is a good place selling good tower cases and PS. I know there are a  couple dozen listed in the Computer Shopper, but I was looking for personal  experiences and recommendations.  --  Divya
In <C5IFpG.7HC@news.claremont.edu> dhosek@jarthur.claremont.edu (D Hosek) writes: >What is the recommended monitor for XGA? Can I just use any old sVGA  >monitor, or is something more needed? Mostly curious before I go blowing >a monster wad of cash on a new system.  XGA or XGA-2?  For the original XGA you just need something that can do 1024x768 at 45/90Hz interlaced (just tell them "8514 compatible" and they should get the idea).  For the XGA-2, get what you like.  I prefer multi- syncs like the IBM 6319, the NECs or even a fixed frequency monitor like my home Viewsonic 6.  I like the Multisyncs because it's easy to run them in modes like 800x600x64k colors noninterlaced, or at higher modes like 1360x1024x16.
*** On 04-19-93  03:53, Wayne Mcdougall had the unmitigated gall to say this:   WM> The software is Netware 286 Level II and I can see burnt on to the  WM> screen SFT Netware 286 Level II V2.0a. However, to configure netware  WM> for level II (mirrored or duplexed disks) requires a second disk, yes?    Yes.  Mirroring requires a controller that is capable of writing to two  disks at once.  Duplexing, which is the preferred way of mirroring, uses  two controller cards and two disk drives.  Duplexing requires a special  card and two identical disk drives (in most cases).  Duplexing can  sometimes be pulled off with slightly different drives/controllers, as long  as the sizes are the same.   WM> So how is the Novell Server 286A normally configured?   The configuration is completely up to the user.   WM> 1. Can I install SFT Netware 286 Level II V2.0a as Level I, or is this  WM> what is causing my serialization error?   If you only have one disk, then you can't use Level II SFT.  However, the  OSOBJ disk has a serial number on it, and if this disk is for a different  version of NetWare then you would get a serialization error.  Make sure  that this disk actually belongs to the rest of the set of floppies in the  NetWare installation set.   WM> 2. Is the Novell Server 286A normally equipped with two hard drives,  WM> one of which has failed?   Two drives could be either two netware volumes at SFT I, or one volume  mirrored using SFT II.  Impossible to tell with the network being down.   WM> 3. Would this mean I can not install the network software because it  WM> will not be serialized for this hardware with a failed drive?   Try disconnecting the failed drive, using a standard disk controller, and  installing the software as one volume under SFT I.  If the software will  install, and if the one disk is functional, then it should be able to work  in this configuration.   WM> 4. What else can cause a serialization error?   See the comment concerning the serial number on the OSOBJ installation  floppy.   WM> 5. What happens if the keycard fails?   What is the keycard attached to?   ... Line noise provided by South Central Bell! --- Blue Wave/QWK v2.10
Would someone please post or email the feature connector pin assignments? This is sometimes referred to as the aux video connector in some  documentation. Thanks  astrachan@austlcm.sps.mot.com
While rummaging through a box of old PC (5150) parts, I found a half-size board that looks like a comm port board.  It was made by Forte Data Systems and has a copyright date of 1986 on it.  The board provides a male 24-pin connector and has 3 jumpers of 3 pins each, two labelled A B C.  I plugged it into my PC and ran Advanced diagnostics several times, changing the jumper positions each time, but the system did not recognise a comm port.  Does anyone have a clue as to what this board might be or how to configure it? I could use another comm port if it's free.
>How do you do bus-mastering on the ISA bus?  By initiating a DMA xfer.  :)  Seriously, busmastering adapter have their own DMA ability, they don't use the motherboards on-board DMA(which is *MUCH* slower).  ISA has no bus arbitration, so if two busmastering cards in 1 ISA system try to do DMA xfers on the same DMA channel the system will lock or  crash.(I forget)  Their are 8 DMA channels in an ISA system. 0-7. 0-3 are 8-bit & 4-7 are 16-bit.  The system uses DMA 0, a SoundBlaster uses DMA 1.  I could buy a busmastering XGA-2 video card & a busmastering SCSI HA.  In order for them to work properly, I would have to find out what DMA channel the XGA-2 card uses and then simply configure the SCSI HA to use a different DMA channel for its DMA xfers.  I don't know if multiple DMA xfers can go on at the same time on ISA. I'm not sure if they can on EISA systems either.  I do know that on EISA/MCA systems, you can allow BM cards to use the same DMA channel.
Hello,  Can anyone give me their opinion on which system has got the best overall system performance;  486/66DX2 with ISA-BUS or 486/50DX2 with EISA-BUS  The systems are equal in all other areas.  Thanks in advance  --  ------------------------------------------------------------------------------- jesper honig spring, spring@diku.dk |        IF ANIMALS BELIEVED IN GOD        university of copenhagen, denmark   |         THE DEVIL WOULD BE A MAN
pastor@vfl.paramax.com (Jon Pastor) writes:  >Which they do in the vast majority of cases.  Remember that it's only the >people on the tails of the curve who are motivated to write -- the ones who >love it, and the ones who hate it.  You don't hear from the folks in the >middle very often...  >They have rough edges, no doubt about it; but they give good value per dollar, >and use almost all top-quality components.    I am one of those middle-of-the-road GW2000 owners who is satisfied with my system. I had my share of problems/corrections/phone conversations/etc. I'm satisfied on what I got for my money.  Stephen R. Husak
In article <1993Apr19.034517.12820@julian.uwo.ca> wlsmith@valve.heart.rri.uwo.ca  (Wayne Smith) writes:   [stuff deleted] >So the lowly low-density original PC FDD card used DMA and the PC-AT >HDD controller doesn't!?!?  That makes real sense.  Actually, it does make a reasonable amount of sense. Fixed disk sectors are buffered by the controller, and transferring them to memory with a 'rep insw' (or whatever the instruction is called) is quite efficient (single instruction, goes as fast as the controller/cpu know how to use the bus). Since the 286 wasn't cached, the bus is likely a critical resource relative to CPU performance, and it's possible that DMA bus interference would cause as much or more loss of CPU cycles (for 'computing') as does the 'rep insw' sequence.  The floppy, on the other hand, is not buffered, so that using the CPU for floppy data transfer (as was done on the PC Jr, by the way) really does stink.
I am interrested in the extrodinarily simple concept of the null modem cable. (Actually I have NO idea, so don't count that last statement.)  What I'm asking is what pins does it use (or what are it's specifications?)  I just want to solder one myself instead of buying one.  I don't even know what port is used.  Help me please (at ke_kimmell@vax.cns.muskingum.edu)  Kevin
In article <1r3vs7INNnr3@lynx.unm.edu>, teague@us17503.mdc.com (Chris Teague 7-1171) writes: > Which 486 CPU will give the better performance on math intensive programs, a > 486-66 DX2 or a 486-50 DX?  486DX2/66 is faster for this if you are using DOS. PC Mag reviewed a bunch of 486DX2/66 and a 486DX50 and the486DX2/66 was faster...  THe review was in the last month of two.  >  > Thanks in advance, >  > Chris Teague >   Guy
FOR SALE:  AT&T Dataport Internal 14.4K Fax/Modem  The modem is an internal AT/(E)ISA 8-bit card (just a little longer than a half-card).  It has v.32bis for 14.4Kbps data / 9600 bps fax, v.42, v.42bis, and MNP5 for error-correction and data compression, so you can get error-free links up to 57,600 bps on a conventional phone line.  They will "fall back" to any speed (down to 1200bps) and even disable compression and error-correction if necessary in order to connect with slower and older modems.  It has a 16550 buffered UART for better compatibility with multi-tasking operating systems (Windows, OS/2, Unix, etc).  They use a patented technology called Optical Line Interface (OLI) which reduces noise generated by the modem to assure the fastest and cleanest connection possible.  These modems come with a lifetime warranty and free lifetime tech support (and the call is free, too) from AT&T.  They also include the lovely and talented QuickLink II for DOS and the NEW QuickLink II for Windows communications and fax software which will let you conveniently sent faxes from any DOS or Windows application just by printing.  The Windows version will send faxes of any font and can include graphics, etc.  The DOS version can fax graphics and a limited set of fonts (I believe that there are 5 or so, as well as any HP Laser II resident fonts).  I'm asking $210.00 for this modem (plus Utah tax).  This is at or below the prices of any other (reputable) manufacturer of an equivalent modem (including Zoom, US Robotics, etc).  And, it is backed by a company that will never go away.  This price will include delivery if you live within 20 miles of downtown SLC.  I can also arrange shipping, or you can stop by my home to pick it up.  (If you're concerned about installing an internal modem, let me know and we can discuss an arrangement for including installation.)  If you're interested, please let me know.  This is an excellent modem at an excellent price (they normally list for ~$500 and retail for about ~$300).  I installed one of these last week and it is very nice.  If you have questions about this, AT&T has an info number at  (800) 554-4996, or you can email me and I will attemp to answer them.  The modem will go to the highest bidder I get within the next week.
Please reply via e-mail since this is job related:   I have a Colorado Jumbo back-up system at one of my places of  employment and it has eaten two tapes by winding the tape off the spool.  Is there an easy fix or is the tape drive fried? Does it simply need  cleaning?  Any and all comments will be appreciated!  Stephen Husak
I'm having trouble with installing a second IDE drive on a Promise IDE caching controller. The first drive is a conner 3204 and works fine. The second drive is a conner 30174, it is currently unjumpered  to be the slave drive. The problem is the slave drive is recognized but is reported back as having no free space. Disabling cache has made no effect. What else should I check for?
--> A humble response to a letter by Gordon Lang written 04-21-93  22:09.    GL> :  I am interrested in the extrodinarily simple concept of the null  GL> modem : cable. (Actually I have NO idea, so don't count that last  GL> statement.)  What I'm : asking is what pins does it use (or what are  GL> it's specifications?)  I just want : to solder one myself instead of  GL> buying one.  I don't even know what port is : used.  You may want to save yourself the trouble and go to Radio Shack.  They have a null modem adapter which is a 9 pin connector that swaps the necessary pins to allow two machines to communicate.  These are a lot easier than soldering the connections yourself, and usually a bit more reliable.  ... P.E.T.A. People for the Eating of Tasty Animals --- Blue Wave/QWK v2.10
There is a good report list on most all of the good monitors in this months issue of Computer Shoppers magazine, with their phone munbers and all (April issue) $2.99....Sam
I have recently plunged into PC World. I have been using Amigas before.  Trying to establish a network (LAN) here that could use 2 different printers.  Panasonic KXP2124 for printing receipts and Okidata OL400 for letters etc.  Is it at all possible in this world ? I know when using Unix etc I can specify  which printer to print from. But I am not sure how PCs would handle that. If  they can't then I guess I'll leave PeeeCeees for good and move on to Unix.
christopher kushmerick (kushmer@bnlux1.bnl.gov) wrote:  : How hot should the CPU in a 486-33 DX machine be?  : Currently it gets so hot that I can not hold a finger on it for more than : 0.5 s.   I seem to recall that 486s run somewhere close to the boiling point of water. Anyone have an exact temperature?  Anyway, putting a CPU fan/heat sink on it won't hurt and could help. Depends on how paranoid you are...