HDTenEightyP/NetNews huggingface dataset:
From: Ted.Beilby@f1020.n391.z1.FidoNet.Org (Ted Beilby)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: MultiTech Mem Board.  HELP!
Date: 30 Aug 92 00:16:01 GMT

I purchased a MultiTeck PB 85043(I)-2A board and installed 36 256K DRAM
chips
 in addition to the 18 DRAM chips already on the board.  The problem -- No
 information on how to configure the switches or jumpers on the board and
no
 software drivers to access it.  Any Help out there anywhere?  I am new to
 using a modem.  I am running a 286 with 4 meg extended at this time.

---
 * Origin: The Ozark Connection/Fayetteville, AR * (1:391/1020)
From: stenzel@redskins.ent.ohiou.edu ( Harley Stenzel ECE )
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Help selecting vendor
Date: 1 Sep 92 03:42:44 GMT
Organization: College Of Engg. & Tech., Ohio University. Athens


   
 
     I am planning on purchasing a 486-50 local bus system.  After 
examining many vendors, I have three finalists.  If anyone has delt
with any of these firms, I would like to hear of your experiences,
both good and bad.  The companies are:
 
     Cornell
     Royal
     CompuSys
 
     Thank you for your time and patience.
 
 
-Harley A. Stenzel
 stenzel@bobcat.ent.ohiou.edu
Newsgroups: comp.sys.ibm.pc.hardware
From: mpalmer@encore.com (Mike Palmer)
Subject: Re: DTK 486 with Symphony chipset - relocating shadow ram
Organization: Encore Computer Corporation
Date: Thu, 3 Sep 1992 13:08:15 GMT

dmurdoch@mast.queensu.ca (Duncan Murdoch) writes:

>I've got a DTK 486-33, with DTK's own BIOS, and a Symphony chipset.  One of 
>the config options is a choice between relocating 0K and 256K of the shadow 
>ram.  The manual is quite vague about what this does, but with 0K relocated, 
>I have 384K of memory dedicated to shadow ram, and with 256K relocated, only 
>128K of memory is used that way.

>The trouble is, the 256K relocation seems to confuse QEMM386 2.42.  I get 
>weird crashes as though it thinks my memory is quite different than it 
>really is.  If I ask for 0K relocation, the problems go away - but so does 
>256K of memory.

>Does anyone know exactly what this relocation does, and how to tell QEMM to 
>live with it?

It remaps the 256K ontop of your other RAM, so you can use it like normal RAM.

Sorry, no idea how to tell QEMM how to live with it.
Newsgroups: comp.sys.ibm.pc.hardware
From: j_manning@csc32.enet.dec.com (John Manning)
Subject: Re: Occidental is Zeos
Organization: Digital Equipment Corporation
Date: Thu, 27 Aug 1992 02:37:59 GMT


In article <24131@oasys.dt.navy.mil>, scfisher@oasys.dt.navy.mil (Steven Fisher) writes...
>I saw in the Wall Street Journal that Zeos has set up a subsiduary,
>called Occidental, to sell PCs for less than Zeos. This was done
>to gain market share without the confusion that Dell and Compaq have
>with their lower priced line.  The article indicated that Occidental's
>prices were (if I remember correctly) about 27% lower than Zeos.



The inside front cover(I think) of the September Computer Shopper is an
Occidental advertisement. I wondered where this "new" company came from. I will
have to check the address...



-------------------------------------------------------------------------------
|    John Manning                       |  Opinions expressed are my own.     |
|    j_manning@csc32.enet.dec.com       |  I do not represent Digital Equip.  |
-------------------------------------------------------------------------------
Organisation: Westfaelische Wilhelms-Universitaet, Muenster, Germany
Date: Wednesday, 2 Sep 1992 14:30:31 MES
From: <ALTMEYE@DMSWWU1A.UNI-MUENSTER.DE>
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Experiences with Fujitsu M2624 ?
 <PHR.92Aug20111227@soda.berkeley.edu>
 <1992Aug21.031536.13339@leland.Stanford.EDU>
 <1992Aug26.152428.6793@krfiny.uucp>
 <92241.110816ALTMEYE@DMSWWU1A.UNI-MUENSTER.DE>


 Hello

 What are the experiences with Fujitsu M2624 HDD (520 MB)?
 How quiet does it run ?
 How fast is it?
 How reliable is it?
 Are there mechanical differences between the AT bus and the SCSI version?

 Thanks a lot

 Thomas Altmeyer
 Institute for theoretical physics
 WWU Muenster Germany
From: grtorlba@sumax.seattleu.edu (George Torralba)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: **if setup say 17 sec/track and HD is RLL then what**
Date: 1 Sep 92 16:01:46 GMT
Article-I.D.: sumax.4922
Organization: Seattle University, Seattle WA

In article <la71o7INN9em@aludra.usc.edu> hho@aludra.usc.edu (** N.T.K.C.D. ***) writes:
>In article <1992Sep1.090452.23441@cc.tut.fi> vihuri@cc.tut.fi (Tapio Vihuri) writes:
>>
>>I use RLL controller (26 sectors/track) and I'd like to use this in my computer
>>but, my CMOS setup knows only MFM drives because all drive table types says
>>17 sectors. Bios is Award but type 48 don't work.
>
>I am using SpeedStor from Storage Dimention as a driver.
>THe SStor will format and reset the drive to 26 sec/trac :-)
>H.
>

Isn't it the controller's job to translate/remap the sectors?  When I had
an RLL subsystem using the DTC controller, I just entered a drive type which
had the same head/cyl count as my drive and the on-board BIOS of the
controller took care of the remapping/translating.  Also, it could be that
your BIOS (computer) does not support RLL drives which was what I ran into
when I first bought my RLL subsytem and tried to put in my Epson Equity II+.
It didn't quite make sense to me being that if the controller has it's own
BIOS, I shouldn't have a problem using it in a machine with an older BIOS.
Anyway, the subsytem did work after I upgraded to my current 386 system.

George
Newsgroups: comp.sys.ibm.pc.hardware
From: spierk@colossus.cs.rpi.edu (Kevin L. Spier)
Subject: Opinions on Symphony chipset...
Organization: Rensselaer Polytechnic Institute, Troy NY
Distribution: na
Date: Thu, 3 Sep 1992 05:07:43 GMT

If you have any first-hand knowledge of the Symphony chipset and its use
in 486dx motherboards please e-mail me with your general impressions,
good/bad points, etc. If there is interest I will post a summary.

Thanks,
Kevin
From: tvp@gibdo.engr.washington.edu
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Stealth Incompatability?
Date: 31 Aug 92 20:05:06 GMT
Organization: clearer than blir

In article <1992Aug31.172031.9522@pacdata.uucp> jimh@pacdata.uucp (Jim Harkins) writes:
>In article <H3hBr*dv2@postmod.NASHUA.NH.US> andrew@postmod.nashua.nh.us writes:
>>
>>	has anyone run across problems with incompatability concerning the
>>diamond stealth vram cards and drivers and particular 386 boards?
>
>I've got a Diamond Stealth in a 486 box and Fractint locks up.  I farted
>around with settings and drivers for about an hour with no luck.  I installed
>OS/2 and then tried it, now OS/2 comes back with an 'invalid opcode'.  This
>same copy of fractint works fine on my 386 box with the generic VGA card
>I use at work.
>
>In all honesty I don't know if the problem is the video card or the motherboard,
>or some combination.  Haven't yet gotten my modem hooked up so I can't call
>their BBS either.  I'll buy the cable to rectify that problem tonight.
>
>jim

I know of some incompatibility of Stealth cards. When running the
Japanese version of PC-DOS (called DOS/V) on a machine with a
Stealth card you will get display problems. This was explained
to me as being due to the fact that the Stealth was not 100%
VGA compatible: The thing apparently rights to non-standard memory addresses
that are usually (but not guaranteed!) to be free. If there's
a conflict with your software that's usually the problem.
I heard a rumor of a command line switch you can feed the driver
in config.sys that will clear this up, but don't quote me; I'm
not sure about it at all. When I heard of these problems I stayed
away from Stealth cards at all costs. ATI cards are 100% VGA and
I have never heard a report on a problem.

Just as a test, you should try your hardware running DOS rather than
OS/2.  I bet the problems miraculously disappear. (IBM is unlikely to
assume the worst: that your graphics card might be misbehaving,
whereas DOS is probably sufficiently hacked up to somehow run anyway.)

-- Tad Perry   Internet:    tvp@gibdo.engr.washington.edu
               CompuServe:  70402,3020
Newsgroups: comp.sys.ibm.pc.hardware
From: smintz@sedona.intel.com (Stephen Mintz exp 11/92~)
Subject: Re: Problem: Sony 1604
Originator: smintz@alamo
Organization: Intel Corporation
Date: Mon, 31 Aug 1992 22:12:18 GMT


You sound exactly the same way I did when I bought my 1304hg, sony service
sucks!! however, if you mean that the colours get screwed up in the corners, then
they have the yoke positioned, too far back...just move it closer to the front of
the screen...all should be fine...
Newsgroups: comp.sys.ibm.pc.hardware
From: tychay@juliet.caltech.edu (Chay, Terrence Y.)
Subject: Re: Thumbs down for MAG (was Re: Standard Computer (and os/2)
News-Software: VAX/VMS VNEWS 1.41    
Organization: California Institute of Technology
Date: Fri, 28 Aug 1992 10:27:00 GMT

>  Is article <1992Aug27.142634.20777@col.hp.com>
      bae@hplsdrn.col.hp.com (Bruce Erickson)
>> Is comp.sys.ibm.pc.hardware 
   subj: Thumbs down for MAG (was Re: Standard Computer (and os/2)), 
   Douglas A. Bell writes

>> I had just bought a mag 15" monitor and was less than happy with it.
>> At 800x600, the display was fuzzy and difficult to read compared to by
>> old 60hz 14" monitor.  I just returned for a refund because I didn't 
>> want to pay shipping costs to look at another fuzzy monitor.
  ^^^^ i had the same problem with my NEC MacSync (cruddy).  i think that
is a factor of the particular monitor (since the MAG did get good reviews)
but then again i might be wrong...

>On the other hand, I am happy with my MAG 15" monitor -- I like its 
>front panel controls, and its color seems nice.  I admit I don't use
>it at 800x600, though (I use it at 1025x760)
> 
>After reading other comments about the MAG, though, I am a bit worried about
>its long-term reliability....  We'll see how it lasts for me!

my roomate works for Centrix computers, which sell the 15" mag monitors you
two have mentioned with their systems.
  he told me that those particular monitors were very good but inconsistent.
Centrix had a high replacement rate on many of them within a short time, but if
the monitors "survived" for a while, they were very reliable.
  he suggested that _if_ i buy a MAG i make sure they have a suitable 
replacement policy.  but i've decided to buy a viewsonic 7 instead.

just passing along some good advice given to me...

-------------- 
this is my .sig, deal with it.

          -terrychay
                 TYCHAY@CITJULIE.BITNET
                 tychay@juliet.caltech.edu
From: lodzins@pilot.njin.net (Dean Lodzinski)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: 386 AMI Bios configuration help - Memory Problem
Keywords: 386,AMI BIOS,Config,Help,Memory,Setup
Date: 23 Aug 92 21:17:23 GMT
Organization: Rutgers Univ., New Brunswick, N.J.


I just got a 386/33 motherboard with AMI Bios.  I installed 4 256K 60ns
SIMM chips on the motherboard according to the motherboard manual.
When I boot up the system, it only says I have 640K.  Where did the
other memory go? When I go into the setup screen, it says I have 640K
with 0K expanded/extended.  The person I got it from had originally
gotten the board with the same chips I have (he upgraded to a 486 and
had 8 megs on the 386 board I bought from him).  I can use the system,
but I can't load HIMEM.SYS and can't find the missing memory.  Anyone
with a suggestion/help please Email me.  Thanks.
   Dean (lodzins@pilot.njin.net)
-- 
=======================================================================
Dean Lodzinski         dean_l@turbo.kean.edu, lodzins@pilot.njin.net,
47 Mercury Circle      dean_l@support.kean.edu or D.LODZINSKI on GEnie
South Amboy, NJ        Dean Lodzinski on Hologram Inc., FNET Node 133, 
08879-2464  USA          at 908/727-1914 (1200/2400/9600)
From: Gabriel.Satragno@f251.n633.z3.fidonet.org (Gabriel Satragno)
Sender: acsnet@csource.oz.au
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Need Info About Priam V18
Date: Sun, 23 Aug 1992 17:16:00 +1000

IC>From: choe@phys.washington.edu (In-Jerng Choe)
IC>Organization: University of Washington

IC>I need a setup information (type, number of head, etc) about Priam MFM drive
IC>model v185.  It is supposed to have a formatted capacity of about 70 Meg.
IC>Physically, it is 5 1/4" full height drive.
IC>I will appreciate any information (phone number to Priam?) very much.
IC>Thanks in advance.

IC>Jay

IC>--
IC>Physics FM-15, U of Wash., Seattle, WA 98195      choe@phys.washington.edu

IC>---
IC> * Origin: FidoNet/ACSNet Gateway [csource.oz.au] Melbourne, OZ (3:632/400.0

Hi
    I've got this information a while back for my self as I run a
    PRIAM V150  Wish I could have a V185
    someting you maight not know is that all V100 series support the
    use of 2.7 RLL encoding in addition to MFM. When used with this
    type controller the drive capacity is expected to be icreased by 50%
    I use a SEGATE ST412 interface controller wich is RLL That I
    purchesed by mail from the STATES for around US$ 65 I couldent tell
    you exactly the name of the shop but if you really need it I'll try
    latter.

    drive specs
    Storage Capacity

    Unformated                     V130        V150      V170      V185
                                  30.8mb      51.4mb    72.0mb    85.0mb

    Formated (Typical Sector Format)
        (32 x 256 BYTES )         24.3mb      40.4mb    56.4mb    66.9mb
        (17 x 152 BYTES )         25.8mb      43.0mb    60.1mb
        Data Tracks                2961        4935       6909
        Data Cilinders             987          987       987      1166
        Disks                       2            3         4        4
        Data Surfaces               3            5         7        7
        Heads, Read/Write           3            5         7        7
        Head, Servo                 1            1         1        1
        Bytes Per Track Unformated                10,416

        Formated (Typical Sector Formats)
          (32 x 256 BYTE Sectors )                 8,192
          (17 x 152 BYTE Sectors )                 8,704
        Maximun Bit Density ( bit/inch)
                                  9,897        9,897      9,897   10,526
        Maximun Flux Density       " "           " "       " "     "   "
        Track Density              960           960       960    1,047



    Interface : ST412/506 compatible

   Hope This Information Helps you out if you need more I,ll gladly try
   to get mor info for you.

   Nice to be able to help bye for now GABRIEL From Down Under

 * Origin:  THE FORBIDDEN PLANET BBS (61-3-464-1479) V.32 MNP  (3:633/251)
Newsgroups: comp.sys.ibm.pc.hardware
From: tracyb@bnr.ca (Tracy Blomquist)
Subject: Re: ATI Graphics Ultra Pro & Graphics Ultra +
Organization: Bell Northern Research
X-Newsreader: Tin 1.1 PL5
Date: Tue, 1 Sep 1992 01:25:45 GMT

In the latest Windows (September) magazine there is a full page ad
for the ATI Ultra Pro and +.  As I recall, the Pro is available in
ISA, EISA, and VL-Bus.  The + is ISA only.  

The Pro has a 25 million WinMark (Compared to Ultra's 11 million
and S3's average 9 million) and the + has a 21 million Winmark.

Both cards have lots of colours, although I don't recall the details.
I think the + has fewer colours than the Pro, but still very impressive.

I phoned ATI and spoke to a tech rep who stated that these cards are
still 8514/a register compatible (must be a superset) as the original
Ultra/Vantage are.  He did not know the release date.  The + is list
priced at $399 in the ad and the Pro is $599.  $399 seems cheap for
a card 2x as fast as the current fastest with 1280x1024x256 (NI) and
1024x768xN (N is many!  Can't recall how many. > 256 though).

Gotta get one! :-)

On another note, any other 17" monitors that will do 1280x1024 @ >=70Hz?
I have found the NEC 5fg and the Nanao T560i so far, the former is in
the running for my purchase, the latter is too many $$$.

I called Viewsonic and they will be updating the V 7 to support 
1280x1024 @ >=70Hz (currently 60Hz at that res.) in the new year. 
It will probably be released in Feb. 93.  I can't wait that long!

Any other good monitors out there that will be a good match for these
ATI cards?

--
,----------------------,------------------------.---------------------,
| Karl Tracy Blomquist | E-MAIL: tracyb@bnr.ca  | Fax: 1-613-765-4018 |
| P.S.C. Consultant    | ENVOY: T.BLOMQUIST     | Ph:  1-613-765-4886 |
`----------------------'------------------------'---------------------'
| Bell-Northern Research, P.O.Box 3511, Stn C, Ottawa, Ont., K1Y-4H7  |
`---------------------------------------------------------------------'
Newsgroups: comp.sys.ibm.pc.hardware,sci.electronics
From: kevinlu@yoyo.cc.monash.edu.au (Kevin Lu)
Subject: Re: What is the difference between DX and SX?
Organization: Monash University General Access Unix
X-Newsreader: Tin 1.1 PL5
Date: Wed, 26 Aug 1992 11:03:28 GMT

Dru Henke (dru@meaddata.com) wrote:
: In article <92233.031818FWR100@psuvm.psu.edu>,
:    <FWR100@psuvm.psu.edu> writes:
: Frank> will generally outperform a 33MHz 386.  Also the 486DX includes the
: Frank> 80387 math coprocessor on the chip.
: 
: OK, so where does the 386SL fit in (as well as the Amd386SXL, and others)?
: 
: Dru
: --
: Dru Henke                                       Anything worth doing
: dru@meaddata.com                                is worth overdoing.

Me thinks that is the chip specifically designed for laptops, as they
contain some extra support stuff on board that you might find on the
actual motherboard of a desktop..

Cya

  +----------------------------------------+-------------------------------+
  |  Kevin Lu                              | Monash University             |
  |  Email: kevinlu@yoyo.cc.monash.edu.au  | Clayton, Victoria             |
  |                                        | Australia                     |
 
   
   

Newsgroups: comp.sys.ibm.pc.hardware
From: ylee@bronze.ucs.indiana.edu (Yao-Chung Lee (Raymond))
Subject: WANTED:  Info wanted on breaking 1 large printjob to multiple prns
Organization: Indiana University
Date: Mon, 24 Aug 1992 01:00:17 GMT

Dear Netlanders,

We are trying to print 60000 labels from 1 datafile downloaded from a 
Mainframe.  What is the best implementation to send this large printjob
to multiple printers?   The present label application only prints to LPT1/COM1.
What hardware and software is required for the solution?   Is it possible to
print to all these printers in Parallel?   Please email your responses and 
Thank you in Advance.
-- 
-------------------------------------------------------------------------------
Raymond Lee                   	Bitnet  : ylee@iugold.bitnet 
     				Internet: ylee@ucs.indiana.edu
                                UUCP: {ames,rutgers,att}!iuvax!silver!ylee
Newsgroups: comp.sys.ibm.pc.hardware
Subject: What would you do with a PS/2 30-286?
From: thomas@datamark.co.nz (Thomas Beagle)
Date: Wed, 02 Sep 1992 02:35:04 GMT
Organization: Datamark International Ltd.

Hi there.

We just swapped out PS/2 55sx for a PS/2 30-286.

What can I do with this machine? I'm thinking of dumping a 386sx/25MHz
upgrade into it, but how much RAM can they take? What sort of drives
do they have as well? IDE/SCSI or that weird IBM style type?

I've already stripped the interesting boards out of it... :-)

Any help would be appreciated.

-- 
    Thomas Beagle | thomas@datamark.co.nz    or | A beagle a day keeps        
Datamark Intl Ltd | thomas@cavebbs.welly.gen.nz | the doctor at bay.
 Technical Writer | 		      Vote MMP!
Newsgroups: comp.sys.ibm.pc.hardware
From: ujlh@pool.info.sunyit.edu (James Henrickson)
Subject: Re: Any use for 4-floppy controllers?
Organization: State University of New York -- Institute of Technology
Date: Mon, 31 Aug 1992 17:17:59 GMT

In article <Jim_Johnson.07l7@abcd.Houghton.MI.US> Jim_Johnson@abcd.Houghton.MI.US (Jim Johnson) writes:
>Another use for the 4-floppy controller is that some tape drives can run as
>a floppy drive.
>
>-- Via DLG Pro v0.995
>
>Jim Johnson-
>*** Remember, they're only tools - Not a way of life! ***

I know a guy that occassionally like to read files from floppies that
were written by different operating systems.  One example was (I think)
CP/M.  He had drive A: set up as an MSDOS 360K unit, and drive B: was
a 720K unit, and he used a device driver for drive D: that really read
CP/M disks in drive A:.  If he had a 4-floppy controller, he could
leave his CP/M disk in the third floppy, use the device driver, and not
have to worry about having the wrong disk type in the drive.  :-)

-- 
Jim H.
*
* James L. Henrickson
* ujlh@sunyit.edu        "Some day I might have a real .signature!"
From: gt5584e@prism.gatech.EDU (Edward Deering Boykin)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: New Gateway 200066Mhz local bus ISA
Date: 2 Sep 92 19:27:34 GMT
Organization: Georgia Institute of Technology

Hi all.
  I just called Gateway 2000 and asked about their new 66Mhz DX2 systems. I actually got a sale representative in less than FIVE minutes! Anyway this is the
scoop.... You can get a 66Mhz in EISA or ISA bus configurations but what has
almost got me sold is the 66Mhz ISA version ... Get this
for 3285.00 I can get this stuff:
66Mhs 486DX2
8 megs 70ns ram
3-1/4 + 5-1/2" floppy
340 meg 13 ms Ide hard drive
ATI graphics ultra

sound pretty standard right?
the bus contains two VESA standard local bus slots for the harddisk and video
and the card are local bus cards.
I also get the new telepath 14.4k modem/9600 bps fax and the 15" monitor.
Oh yea the monitor is standard on this system!
The DX2 has a heat sink which does NOT interfere with the other "8" Isa 
slots and the burn in is done at the gteway warehouse.
3285.00 is thye price I was quoted for the computer, modem and shipping. the 
modem is theonly 'extra' I am getting. all else is standard.
I'm a little skeptical about local bus and dx2 heat problems but for this price
I think I';m sold..........


Edward D. Boykin                    Maximus Maximizer Ultimate        \  /|
gt5584e@prism.gatech.edu            Georgia Institute of Technology   'o.O`
                                                                     =(___)=
                                                                        U
From: rcollins@gumby.Altos.COM (Robert Collins)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Any use for 4-floppy controllers?
Date: 27 Aug 92 22:25:10 GMT
Reply-To: rcollins@altos.COM (Robert Collins)
Organization: Altos Computer Systems, San Jose, CA

In article <8magPB5w165w@slic.cts.com> mikey@slic.cts.com (Mike Shirley) writes:
>kevin@kosman.uucp (Kevin O'Gorman) writes:
>
>> I keep seeing these HD controllers that include logic for 4 floppy drives.
>> I keep wondering why bother?  I thought MS-DOS (what most of these will
>> be used for) only recognized 2 floppies, no matter what logic was actually
>> present.
>> 
>> Am I wrong?  Can one use the 3rd and 4th for something else, like floppy tape
>

I've got these 'dual' floppy drives -- they actually have two floppies built 
into a single 1/2-high drive.  One is 3.5", the other 5.25".  I have two of
these in my system.  Therefore, I have four floppy disks installed.
MS-DOS will recognize and access all 4 floppies, as I can attest.  It's
the BIOS that is the limiting factor.  As far as I know, MR-BIOS is the
only BIOS with 4-floppy support.  This is one of the many reasons I use
MR-BIOS.  MR-BIOS supports 4 floppies from a single controller, or
dual controllers (primary/secondary) with two floppies each.  This way,
I'm never inconvenienced when I need to copy 1.2M or 1.44M diskettes.

R. Collins

-- 
"Worship the Lord your God, and serve Him only."  Mat. 4:10
Robert Collins		UUCP:  ...sun!altos86!rcollins
Home:  (408) 225-8002             rcollins@altos.COM
Work:  (408) 432-6200 x4356
Newsgroups: comp.sys.ibm.pc.hardware