Changes
/* RM Nimbus PC-386/20 - Thursday 3rd December 2020 (90) */
* Condition: Used
* Serial #: M031209710
==== Peripherals ====
* YE DATA YD-701B 6031B 1.44MB Floppy drive has been replaced with [https://i.etsystatic.com/17835898/r/il/e3b056/2259893717/il_794xN.2259893717_dali.jpg Gotek Floppy Drive Emulator] (Grey) - similar to [https://www.gotekemulator.com/P_view.asp?pid=54 SFR1M44-U100 GoTek 3.5Inch 1.44MB USB SSD Floppy Driver Emulator]
* 72-pin [https://www.flickr.com/photos/34320897@N02/52447376967/in/album-72177720303102261/ IBM WD-L40 HDD] has been replaced with [https://usingscsi2sdonrmnimbuspc386.blogspot.com/2021/02/using-scsi2sd-on-nimbus-pc-286-386-m.html SCSI2SD] using maximum [https://drive.google.com/file/d/1oIHqz1DNLxkfsrpTmP9fPTivaL7swc2s/view?usp=sharing 450MB configuration setting] to get a total capacity of 1.8GB in 4 HDD partitions on 2GB Micro-SD card as HDD replacement
* [https://www.cpu-world.com/CPUs/80387/Intel-N80387SX-20.html Intel N80387SX-20 Maths Coprocessor] has been installed and working correctly
* [https://www.ardent-tool.com/SCSI/MCS.html#MCS-600_700 IBM Fast SCSI-2 Adapter/A]
* [https://ardent-tool.com/memory/IBM_Expansion.html#1_8MB IBM Expanded Memory Adapter 0-8MB XMA] - increased to a total of [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgs6Ma1HqCaiBmbO4jBVfpthjiYQo4E4r4jTAzBnIHgfTNIxWzZ7xFgzHsw4HGnMkmdxHTIwMvP6FLAs68soVpmw3jMaUVLG7jytZVOhnTNORFtT5jYv2Zty09BdwhqJ7EvWBPiRRELUGyc7NzIyRwexUyepov9rQJek3R3RVIJIP0X9aD02yUNLg4THw/s3968/IMG_20210731_151417.jpg 6,144 KB (6MB)] RAM from IBM Expanded Memory: 2MB using [https://www.ebay.co.uk/sch/i.html?_from=R40&_nkw=256KB+30-pin+SIMMs+150ns+&_sacat=0&LH_PrefLoc=2&_sop=15 8 x 256KB 30-pin SIMMs 150ns] ([https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=OKI+MSC2304-15YS9A&_sacat=0&LH_TitleDesc=0&_odkw=256KB+30-pin+SIMMs+150ns+&_osacat=0&_sop=15&LH_PrefLoc=2 OKI MSC2304-15YS9A]) * 2MB onboard + 2MB onboard
* [https://www.ardent-tool.com/NIC/3c523.html#Late_3C523 3COM 3C523 ETHERLINK/MC ETHERNET MCA MICRO CHANNEL ADAPTER MCA-II Network card] - [https://www.ardent-tool.com/NIC/3c523c_Photo_Front.jpg newer revision (Late version)]
* Maxell ER6K Lithium 3.6V Battery replaced with [https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313&_nkw=ACORN+BBC+MASTER+128+NEW+REPLACEMENT+LITHIUM+LONG+LIFE+CMOS+RTC+BATTERY+PACK&_sacat=0 LITHIUM LONG LIFE CMOS RTC BATTERY PACK]
==== Software ====
# 3.5" Disk: [https://drive.google.com/file/d/1XTNoi_5Z18Rx9vathqtyboDYHjk765UJ/view?usp=share_link PC-286/386 System Disk Rel 1.00A] - PN 30417
# 3.5" Disk: [https://drive.google.com/file/d/16HDnX1XsS802vHU_-JRXijh8iWqCYmqx/view?usp=share_link PC-286/386 Additional Utilities Rel 1.00A] - PN 30418
# 3.5" Disk: [https://drive.google.com/file/d/1w-eMZwD5AoFSDhseKKMtGPZwgayUFsa6/view?usp=share_link PC-286/386 Reference Disk PSetup Ver 3.00C] - PN 30421
# Pre-installed: [https://winworldpc.com/product/windows-3/30 Microsoft Windows 3.0] with all other software installed - [https://drive.google.com/file/d/15nWIHPC1pR8JRMRbOg2jBCdVBPEzXZ5t/view?usp=share_link Previous 40MB HDD back-up]
# Pre-installed: [https://winworldpc.com/product/windows-3/wfw-311 Microsoft Windows for Workgroups 3.11] with all other software installed - [https://drive.google.com/file/d/1JY84yyKhK55cfTpXLoNO6gfVUNozaDQ4/view?usp=share_link Current SCSI2SD back-up]
# E800 EPROM Chip - AM27C1024: [https://drive.google.com/file/d/18bz7cBwFE0piexx-xWMsbteqQi5N_MwW/view?usp=share_link Research Machines P.N. 32846 PC386 V5.02K] (M-Series BIOS Version 5.02K)
# EPROM Chip (8 KB) - M5L2764: [https://drive.google.com/file/d/19PW9X-b2Fz3LSIfSY56nydyFkuarUSv-/view?usp=share_link Future Domain 1994 IBM P3 V1.01]
# EPROM Chip (32 KB) - D27256: [https://drive.google.com/file/d/19PbLnCzM94B3CvR-8FvFmKeCebyvcpdc/view?usp=share_link 61x6724 IBM 1987_ID27256-1 U73720 MZS PCM 12.5v]
==== Books/User Manuals ====
* None
=== [https://www.thenimbus.co.uk/range-of-nimbus-computers/PC-286-386 RM Nimbus PC-386/20] - Friday 11th December 2020 (91) ===
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This Vintage [https://www.flickr.com/photos/34320897@N02/albums/72177720303102261 RM Nimbus PC-386/20] School Computer was purchased from Swindon, United Kingdom via eBay Seller: [https://www.ebay.co.uk/usr/gronopa?_trksid=p2047675.l2559 gronopa] on 09 dec, 2020 15:17:17 GMT for Ł220 out of 23 bids with Ł20.25 postage - Economy Delivery.
Vintage RM Nimbus PC-386/20 School Computer. Condition is "For parts or not working". Dispatched with Royal Mail 2nd Class Large Letter.
Note computer description taken from archival auctions and found on the Internet
https://www.thenimbus.co.uk/about-the-rm-nimbus-museum/wanted
https://en.m.wikipedia.org/wiki/RM_Nimbus
The BIOS screen indicates that it dates to 1992.
I do not have a keyboard or a mouse to test it ... I used an old monitor from work and I can not check it more, so it sells as non-functional ... I also do not give any warranty and sells it in the same condition as you can see in the photos ... computer stored in a warm home for many years ... I invite you to bid. more photos I can share
Unusual in that it has the 20MHz CPU, instead of the usual 16MHz one, which I understand is quite rare…. 40MB Hard Drive
* Status: Working
* Condition: Used
* Serial #: M032123202
==== Peripherals ====
