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- Dr.Hardware Sysinfo: Problems, Restrictions, FAQs
- =================================================
- Foreword:
- You will find the answer to many FAQs in the programs online help.
- We will discuss here only the mainly important problems.
-
-
- A. Known Problems and Restrictions:
- -----------------------------------
-
- I.Principally...
-
- 1.Avoid nearly almost problems by running the program under D O S and
- in R E A L M O D E. Also try to free some memory. 500 KB free DOS RAM
- will be enough for all analysis steps.
- 2.Running under Windows: it's possible; but results with less precision
- may occur.
- Tip: Run Dr. Hardware under DOS to test the hardware; if you like run it
- under WINDOWS to test the software.
- 3.Please be sure that all your important data are backuped. If a crash
- occurs, data may be lost in... a) RAM-Disks b) Software Caches and C)
- Network Environment.
- 4.Some analysis steps need some time to pass thru (e.g. drive test,
- Modem Inquiry, IRQ/DMA Test, Network Analysis, System Benchmarks under
- WINDOWS and OS/2)
-
-
- II.Problems:
-
- 1.Problems under MS WINDOWS 3.X and OS/2
- - partialy unreliable CPU Flag register analysis (-> e.g. can't identify
- internal NPU)
- - Under OS/2 CPUs 386 or above will not be identified.
- - Authentic Timer measurements under WINDOWS aren't possible.
- Clock determination may differ +/- 2 MHZ (Clock determination only
- on Pentium-based systems). No determination of L2 Cache
- - IDE analysis not possible if the 32 Bit Access is activated.
- - Less reliable logical drive determination under OS/2
- - Problems while running video benchmarks (Mode Switching)
- - Can't access a serial Port if a mouse is connected to
-
- 2.Problems under WIN 95
- Please start WIN 95 PCs in DOS mode (Press F8 on booting and select
- the option "Command prompt only" from the menu).
- Specific restrictions under WIN95
- - Modem identifation may fail
- - incorrect determination of free and used XMS Memory
- - Logical drive determination less reliable
-
- 3.The PCI Bus Test might cause a system crash. It can be disabled
- under SERVICE/CONFIGURASTION or in the DRHARD.INI.
- (EMM386.EXE with the switch "HIGHSCAN" can cause a crash)
-
- 4.Clock and external Cache are determined via short time measurements.
- Various hard- and software factors might take influence on them. So
- please be always aware of unreliable results although results are most
- often reliable.
-
- 5.L2-Cache Detection:
- If cache identification fails please activate or deactivate in the
- Program Setup the option "Altern. L2 Cache".
- If the test fails again, this may have various reasons:
- A.Cache is okay, but Dr.Hardware can't detect it.
- Why?
- 1.Under WINDOWS and OS/2 Dr. Hardware can't determine the cache size .
- (=> Run Program under DOS)
- 2.A Cache greater than 512 KB can't be detected at all.
- 3.A Memory Manager takes influence on the measurement (=> test in Real
- Mode)
- 4.System performance is so high (Pentium) and/or Cache is so inefficient
- so that Dr. Hardware can't find any difference between RAM and Cache
- transfer rate (but this is the way he tries to detect it!)
- B. Cache ist disabled (=> enable it in the Advanced Setup, often called
- BIOS-Setup)
- C. Cache ist bad (=> test again with some other test programs)
-
- 6.Dr. Hardware identifies all current Main Stream Processors; however
- detection might fail for various reasons. If CPU isn't detected correctly,
- clock determination will fail automatically, because of the use of
- CPU specific algorithms to determine the clock.
- The detection method for elder NexGen586 CPUs is not very realible.
-
- 7.Software Caches may affect the CD ROM Data Transfer result
- (Dr. Hardware disables Smartdrive and CD-BLITZ temporarily during the
- test procedure)
-
- 8.If the mouse fails to work properly, please acticvate the option
- "Hard Mouse Reset" in the DRHARD.INI.
-
- 9.The Sound-Card-Tests (Menu DEVICES) can be disabled in the EXPERT SETUP
- (via PROGRAM SETUP) singularily, if the tests cause a system crash. GUS
- Test is inactive by default.
-
- 10.The IDE analysis can cause a system crash if there is no IDE device
- present but instead of it a SCSI device.
-
- 11.If Dr. Hardware determines the capacity of your hard drives different
- from what you expected this might have the following reasons:
- 1.Capacity statement of the vendor may refer to the unformatted capacity;
- the formatted capacity is below that.
- 2.The CMOS entry is not adequate for the fixed disk if for example
- only 1024 cylinders can be managed (elder BIOSs)
- 3.The capacity statement of the vendor may base upon the equivalent
- 1 MB=1000 KB resp. 1 KB=1000 B. Dr.Hardware however takes 1024 KB for
- 1 MB and 1024 Bytes for 1 KB.
-
- 12.If a system crash occurs during the net benchmark please check all your
- local and remote drives for logical errors (e.g. lost clusters)
- afterwards (CHKDSK or SCANDISK). If the TEMP file DRHNET.$$$ still
- exists please erase it.
-
- 13.Memory above 64 MB will often not be detected
-
- 14.Dr. Hardware can't detect... Scanner, Streamer, hayes-incompatible
- Modems, Cache Controller, SCSI devices if no ASPI- or CAM-
- manager is installed and various add-on-cards (radio card etc).
-
-
- B. FAQs:
- --------
- F:What other hardware related software do you offer?
- A:None for the moment.
-
- F:Will there be a WINDOWS version ?
- A:Yes.
-
- F:My vga adapter is VESA compatible. Does that mean that my PC has
- a VESA Local Bus ?
- A:Not necessarily. VESA VGA adapters can also be found in ISA boards
-
- F:My PC has VESA Local Bus. Dr.Hardware however tells ISA!?
- A:There is no way to detect the VL Bus via inquiry function. It's however
- often detectable via some tricky CPU->Memory-Transfer measurement.
- But there must be a VL Graphics Adapter installed.
-
- F:Is there a feature to test the serial Port registers with a Loopback Plug?
- A:No.
-
- F:The Sound Check (Option SOUNDBLASTER DETAILS) sounds rather bad.
- A:Please note: this check is based upon an 8-Bit mono wave file and it's
- played in Direct Mode. Shows whether your Sound Card produces sound
- but not the quality of it.
-
- F:I get a message at program start that there is not enough Memory to run
- the program. Although I activate the Small RAM Option in DRHARD.INI I get
- the same message the next time.
- A:This shows that there is absolutely not enough memory to run the program.
-
- F:After opening Pull Down Menus or running some analysis procedures
- the screen will be destroyed
- A:This problem occurs very rarely. Seen for example on a Pentium-VLB/PCI
- Board with VL Graphics Adapter (no problems with other VGA adapters).
- Unknown reason.