Hewlett-Packard (HP) uses motherboards and BIOSs from several manufacturers, their computers use a variety of power on self test (POST) error messages. Instead of listing each model's error messages, this list provides links to the support pages of popular HP workstations and servers. If you don't see a particular HP machine listed here, check HP's Web site . Send us a link to the machine’s POST codes via the mail-to link on the last page of this document.
Note: Hewlett-Packard and Compaq merged in 2002 and the new company dropped the Compaq name from all but a few consumer product lines--such as Presario desktops and notebooks. This table lists only HP-branded systems.
Model BIOS POST error codes
Carrier Grade Server cc2300 http://docs.hp.com/en/2421/cc2300_product_guide.pdf
Carrier Grade Server cc3310 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00066298
e-PC c10/s10 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis13707
Integrity cx2600 http://h200007.www2.hp.com/bc/docs/support/SupportManual/c00112271/c00112271.pdf
Integrity rx1600 http://h200007.www2.hp.com/bc/docs/support/SupportManual/c00112278/c00112278.pdf
Integrity rx2600 http://h200007.www2.hp.com/bc/docs/support/SupportManual/lpn04096/lpn04096.pdf
Integrity rx4640 http://h200001.www2.hp.com/bc/docs/support/SupportManual/c00112414/c00112414.pdf
Kayak http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis06334
Kayak XM600 http://h20000.www2.hp.com/bc/docs/support/SupportManual/lpv07804/lpv07804.pdf
Kayak XU800 http://h20000.www2.hp.com/bc/docs/support/SupportManual/lpv07804/lpv07804.pdf
NetServer E200 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis02610
NetServer E800 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn14084
NetServer LC2 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis02261
NetServer LC3 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis02261
NetServer LC2000 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis02261
NetServer LD Pro http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis07094
NetServer LH3, LH3r, and LPr http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn14082
NetServer LH4 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=thp00847
NetServer LH3000 and 3000r http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=thp00846
NetServer LH6000 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis15399
NetServer LH6000r http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis15399
NetServer LP1000r http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn13695
NetServer LP2000r http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn13695
NetServer LT6000r http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis02251
NetServer LXR8500 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis02264
NetServer LXR Pro8 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis09865
Pavilion Desktops with Phoenix BIOS http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bph07107
Pavilion 5010, 5030, and 5040 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bph01004
Proliant Series Servers http://h200007.www2.hp.com/bc/docs/support/SupportManual/c00257512/c00257512.pdf
Pavilion 7xxx (7010, 7020, 7030, 7050, and possibly others) http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bph01053
Server tc2100 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis09252
Server tc2110 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn13027
Server tc3100 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn13237
Server tc4100 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpn12827
Vectra PCs with Phoenix BIOS http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis06108
e-Vectra http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis06446
Vectra VE 5/xxx Series 4 http://h200004.www2.hp.com/bc/docs/support/SupportManual/bpv03974/bpv03974.pdf
Vectra XA5 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis06112
Vectra XA 5/XXX http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpv03314
Vectra XE310 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis13051
Workstation xw3100 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00038866
Workstation xw4000 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpv39144
Workstation xw5000 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpv39015
Workstation xw6000 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpv39144
Workstation xw8000 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpv38939
Workstation zx6000 http://h200007.www2.hp.com/bc/docs/support/SupportManual/lpn04096/lpn04096.pdf
HP BIOS POST error code list
Dell BIOS POST error code list
Dell uses motherboards and BIOSs from several manufacturers, their computers use a variety of power on self test (POST) error messages. Instead of listing each model's error messages, this list provides links to the support pages of popular Dell workstations and servers. If you don't see a particular Dell machine listed here, check Dell's support Web site http://support.dell.com/ . Send us a link to the machine’s POST codes via the mail-to link on the last page of this document.
Model BIOS POST error codes (copy link and paste in new window)
Dimension Vxxx and Vxxxc http://support.dell.com/support/edocs/systems/dwill/error.htm
Dimension 900 http://support.dell.com/support/edocs/systems/dcaydim2/codemess.htm
Dimension 2100 http://support.dell.com/support/edocs/systems/dim2100/codemess.htm
Dimension 2200 http://support.dell.com/support/edocs/systems/dim2200/codes.htm
Dimension 2300 http://support.dell.com/support/edocs/systems/dim2300/advanced.htm
Dimension 2300c http://support.dell.com/support/edocs/systems/dim2300c/advanced.htm
Dimension 2350 http://support.dell.com/support/edocs/systems/dim2350/advanced.htm
Dimension 3000 http://support.dell.com/support/edocs/systems/dim3000/en/sm/adtshoot.htm
Dimension 4100 http://support.dell.com/support/edocs/systems/dzuul/codemess.htm
Dimension 4200 http://support.dell.com/support/edocs/systems/dim4200/codes.htm
Dimension 4300 http://support.dell.com/support/edocs/systems/dim4300/codes.htm
Dimension 4300s http://support.dell.com/support/edocs/systems/dim4300s/codes.htm
Dimension 4400 http://support.dell.com/support/edocs/systems/dim4400/codes.htm
Dimension 4500 http://support.dell.com/support/edocs/systems/dim4500/advanced.htm
Dimension 4500c http://support.dell.com/support/edocs/systems/dim4500c/advanced.htm
Dimension 4500s http://support.dell.com/support/edocs/systems/dim4500s/advanced.htm
Dimension 4550 http://support.dell.com/support/edocs/systems/dim4550/advanced.htm
Dimension 4590T http://support.dell.com/support/edocs/systems/dim4590t/en/sm/adtshoot.htm
Dimension 4600 http://support.dell.com/support/edocs/systems/dim4600/en/4600i/sm/adtshoot.htm
Dimension 4600c http://support.dell.com/support/edocs/systems/dim4600c/sm/adtshoot.htm
Dimension 4700 http://support.dell.com/support/edocs/systems/dim4700/sm/adtshoot.htm
Dimension 8100 http://support.dell.com/support/edocs/systems/dsleest/codemess.htm
Dimension 8200 http://support.dell.com/support/edocs/systems/dim8200/codes.htm
Dimension 8250 http://support.dell.com/support/edocs/systems/dim8250/advanced.htm
Dimension 8300 http://support.dell.com/support/edocs/systems/dim8300/sm/adtshoot.htm
Dimension 8400 http://support.dell.com/support/edocs/systems/dim8400/sm/adtshoot.htm
Dimension C http://support.dell.com/support/edocs/systems/dcaydim/codemess.htm
Dimension L http://support.dell.com/support/edocs/systems/dmum/codemess.htm
Dimension Lxxxc http://support.dell.com/support/edocs/systems/dcol/codemess.htm
Dimension P133a, P166a, M166a, M200a, and M233a http://support.dell.com/support/edocs/systems/dhanplus/error.htm
Dimension P133v, P166v and P200v http://support.dell.com/support/edocs/dta/_hannbl/00000343.htm
Dimension XPS http://support.dell.com/support/edocs/systems/dimxpsg3/sm/adtshoot.htm
Dimension XPS B series http://support.dell.com/support/edocs/systems/dmag/codemess.htm
Dimension XPS Txxx and Txxxr http://support.dell.com/support/edocs/systems/dkub/codemess.htm
OptiPlex 160L http://support.dell.com/support/edocs/systems/op160l/en/ug/solve.htm
OptiPlex 170L http://support.dell.com/support/edocs/systems/op170l/en/ug/solve.htm
OptiPlex GC http://support.dell.com/support/edocs/systems/opgc/en/ug/messages.htm
OptiPlex Gn and Gn+ http://support.dell.com/support/edocs/systems/dthred/messages.htm
OptiPlex GX1 Small Form Factor http://support.dell.com/support/edocs/systems/ban_gx1/en/ug_sdt/messages.htm
OptiPlex GX50 http://support.dell.com/support/edocs/systems/opgx50/ena/ug/problems.htm
OptiPlex GX100 http://support.dell.com/support/edocs/systems/opgx100/en/ug/messages.htm
OptiPlex GX110 http://support.dell.com/support/edocs/systems/opgx110/en/ug/messages.htm
OptiPlex GX115 http://support.dell.com/support/edocs/systems/opgx115/en/ug/messages.htm
OptiPlex GX200 http://support.dell.com/support/edocs/systems/opgx200/en/ug/messages.htm
OptiPlex GX240 http://support.dell.com/support/edocs/systems/opgx240/en/ug/problems.htm
OptiPlex GX260 http://support.dell.com/support/edocs/systems/opgx260/en/ug/solvprob.htm
OptiPlex GX270 http://support.dell.com/support/edocs/systems/opgx270/en/ug/solve.htm
OptiPlex GX280 http://support.dell.com/support/edocs/systems/opgx280/en/ug/tools.htm
OptiPlex GX300 http://support.dell.com/support/edocs/systems/opgx300/en/ug/messages.htm
OptiPlex GX400 http://support.dell.com/support/edocs/systems/opgx400/en/ug/ch5.htm
OptiPlex GXa http://support.dell.com/support/edocs/systems/dfuj/messages.htm
OptiPlex GXi http://support.dell.com/support/edocs/systems/dzer/messages.htm
OptiPlex GXpro http://support.dell.com/support/edocs/systems/dstrmlk/messages.htm
OptiPlex L60 http://support.dell.com/support/edocs/systems/opl60/en/ug/solvprob.htm
OptiPlex N http://support.dell.com/support/edocs/systems/dkill/messages.htm
OptiPlex SX260 http://support.dell.com/support/edocs/systems/opsx260/en/ug/solve.htm
OptiPlex SX270 http://support.dell.com/support/edocs/systems/opsx270/en/ug/solve.htm
OptiPlex SX280 http://support.dell.com/support/edocs/systems/opsx280/en/ug/tools.htm
OptiPlex XMT575, 590, 5100, 5120, and 5133 http://support.dell.com/support/edocs/dta/586xmt/00000038.htm
PowerEdge 300 http://support.dell.com/support/edocs/systems/snewt/en/sm/beep.htm
PowerEdge 350 http://support.dell.com/support/edocs/systems/spe350/en/sm/beep.htm
PowerEdge 770N http://support.dell.com/support/edocs/stor-sys/spv77xn/en/sm770ne/beep.htm
PowerEdge 2500 and 2500SC http://support.dell.com/support/edocs/systems/pe2500sc/en/sm/beep.htm
PowerEdge 2600 http://support.dell.com/support/edocs/systems/pe2600/en/sm/beep.htm
PowerEdge 2650 http://support.dell.com/support/edocs/systems/pe2650/en/sm/beep.htm
PowerEdge 1600SC http://support.dell.com/support/topics/global.aspx/support/kb/en/document?dn=1088651
PowerEdge 4400 http://support.dell.com/support/edocs/systems/pe4400/en/sm/messages.htm
PowerEdge 6400 http://support.dell.com/support/edocs/systems/pe6400/en/sm/beep.htm
PowerEdge 6650 http://support.dell.com/support/edocs/systems/pe6650/en/sm/beep.htm
PowerEdge 6660 http://support.dell.com/support/edocs/systems/pe6600/en/sm/beep.htm
PowerEdge 7150 http://support.dell.com/support/edocs/systems/pe7150/en/sm/beep.htm
PowerEdge 7250 http://support.dell.com/support/edocs/systems/pe7250/en/PG/g4277aa0.htm
PowerEdge 8450 http://support.dell.com/support/edocs/systems/sdiam/en/sm/beep.htm
PowerVault 735N http://support.dell.com/support/edocs/stor-sys/spv735n/en/sm/beep.htm
PowerVault 750N http://support.dell.com/support/edocs/stor-sys/spv75xn/en/sm750Ne/beep.htm
PowerVault 755N http://support.dell.com/support/edocs/stor-sys/spv75xn/en/sm755Ne/beep.htm
PowerVault 775N http://support.dell.com/support/edocs/stor-sys/spv77xn/en/it775ne/7p048c20.htm
Precision Workstation 220 http://support.dell.com/support/edocs/systems/ws220/en/ug/messages.htm
Precision Workstation 330 http://support.dell.com/support/edocs/systems/ws330/en/ug/html/solving.htm
Precision Workstation 340 http://support.dell.com/support/edocs/systems/ws340/en/ug/codes.htm
Precision Workstation 400 http://support.dell.com/support/edocs/systems/dtor/messages.htm
Precision Workstation 420 http://support.dell.com/support/edocs/systems/ws420/en/ug/messages.htm
Precision Workstation 470 and 670 http://support.dell.com/support/edocs/systems/ws670/en/ug/advtrbl.htm
Precision Workstation 530 http://support.dell.com/support/edocs/systems/ws530/en/ug/html/2codes.htm
Precision Workstation 620 http://support.dell.com/support/edocs/systems/ws620/en/ug/messages.htm
Precision Workstation 730 http://support.dell.com/support/edocs/systems/ws730/ug/messages.htm
SmartStep 150D http://support.dell.com/support/edocs/systems/smrt150d/codes.htm
Model BIOS POST error codes (copy link and paste in new window)
Dimension Vxxx and Vxxxc http://support.dell.com/support/edocs/systems/dwill/error.htm
Dimension 900 http://support.dell.com/support/edocs/systems/dcaydim2/codemess.htm
Dimension 2100 http://support.dell.com/support/edocs/systems/dim2100/codemess.htm
Dimension 2200 http://support.dell.com/support/edocs/systems/dim2200/codes.htm
Dimension 2300 http://support.dell.com/support/edocs/systems/dim2300/advanced.htm
Dimension 2300c http://support.dell.com/support/edocs/systems/dim2300c/advanced.htm
Dimension 2350 http://support.dell.com/support/edocs/systems/dim2350/advanced.htm
Dimension 3000 http://support.dell.com/support/edocs/systems/dim3000/en/sm/adtshoot.htm
Dimension 4100 http://support.dell.com/support/edocs/systems/dzuul/codemess.htm
Dimension 4200 http://support.dell.com/support/edocs/systems/dim4200/codes.htm
Dimension 4300 http://support.dell.com/support/edocs/systems/dim4300/codes.htm
Dimension 4300s http://support.dell.com/support/edocs/systems/dim4300s/codes.htm
Dimension 4400 http://support.dell.com/support/edocs/systems/dim4400/codes.htm
Dimension 4500 http://support.dell.com/support/edocs/systems/dim4500/advanced.htm
Dimension 4500c http://support.dell.com/support/edocs/systems/dim4500c/advanced.htm
Dimension 4500s http://support.dell.com/support/edocs/systems/dim4500s/advanced.htm
Dimension 4550 http://support.dell.com/support/edocs/systems/dim4550/advanced.htm
Dimension 4590T http://support.dell.com/support/edocs/systems/dim4590t/en/sm/adtshoot.htm
Dimension 4600 http://support.dell.com/support/edocs/systems/dim4600/en/4600i/sm/adtshoot.htm
Dimension 4600c http://support.dell.com/support/edocs/systems/dim4600c/sm/adtshoot.htm
Dimension 4700 http://support.dell.com/support/edocs/systems/dim4700/sm/adtshoot.htm
Dimension 8100 http://support.dell.com/support/edocs/systems/dsleest/codemess.htm
Dimension 8200 http://support.dell.com/support/edocs/systems/dim8200/codes.htm
Dimension 8250 http://support.dell.com/support/edocs/systems/dim8250/advanced.htm
Dimension 8300 http://support.dell.com/support/edocs/systems/dim8300/sm/adtshoot.htm
Dimension 8400 http://support.dell.com/support/edocs/systems/dim8400/sm/adtshoot.htm
Dimension C http://support.dell.com/support/edocs/systems/dcaydim/codemess.htm
Dimension L http://support.dell.com/support/edocs/systems/dmum/codemess.htm
Dimension Lxxxc http://support.dell.com/support/edocs/systems/dcol/codemess.htm
Dimension P133a, P166a, M166a, M200a, and M233a http://support.dell.com/support/edocs/systems/dhanplus/error.htm
Dimension P133v, P166v and P200v http://support.dell.com/support/edocs/dta/_hannbl/00000343.htm
Dimension XPS http://support.dell.com/support/edocs/systems/dimxpsg3/sm/adtshoot.htm
Dimension XPS B series http://support.dell.com/support/edocs/systems/dmag/codemess.htm
Dimension XPS Txxx and Txxxr http://support.dell.com/support/edocs/systems/dkub/codemess.htm
OptiPlex 160L http://support.dell.com/support/edocs/systems/op160l/en/ug/solve.htm
OptiPlex 170L http://support.dell.com/support/edocs/systems/op170l/en/ug/solve.htm
OptiPlex GC http://support.dell.com/support/edocs/systems/opgc/en/ug/messages.htm
OptiPlex Gn and Gn+ http://support.dell.com/support/edocs/systems/dthred/messages.htm
OptiPlex GX1 Small Form Factor http://support.dell.com/support/edocs/systems/ban_gx1/en/ug_sdt/messages.htm
OptiPlex GX50 http://support.dell.com/support/edocs/systems/opgx50/ena/ug/problems.htm
OptiPlex GX100 http://support.dell.com/support/edocs/systems/opgx100/en/ug/messages.htm
OptiPlex GX110 http://support.dell.com/support/edocs/systems/opgx110/en/ug/messages.htm
OptiPlex GX115 http://support.dell.com/support/edocs/systems/opgx115/en/ug/messages.htm
OptiPlex GX200 http://support.dell.com/support/edocs/systems/opgx200/en/ug/messages.htm
OptiPlex GX240 http://support.dell.com/support/edocs/systems/opgx240/en/ug/problems.htm
OptiPlex GX260 http://support.dell.com/support/edocs/systems/opgx260/en/ug/solvprob.htm
OptiPlex GX270 http://support.dell.com/support/edocs/systems/opgx270/en/ug/solve.htm
OptiPlex GX280 http://support.dell.com/support/edocs/systems/opgx280/en/ug/tools.htm
OptiPlex GX300 http://support.dell.com/support/edocs/systems/opgx300/en/ug/messages.htm
OptiPlex GX400 http://support.dell.com/support/edocs/systems/opgx400/en/ug/ch5.htm
OptiPlex GXa http://support.dell.com/support/edocs/systems/dfuj/messages.htm
OptiPlex GXi http://support.dell.com/support/edocs/systems/dzer/messages.htm
OptiPlex GXpro http://support.dell.com/support/edocs/systems/dstrmlk/messages.htm
OptiPlex L60 http://support.dell.com/support/edocs/systems/opl60/en/ug/solvprob.htm
OptiPlex N http://support.dell.com/support/edocs/systems/dkill/messages.htm
OptiPlex SX260 http://support.dell.com/support/edocs/systems/opsx260/en/ug/solve.htm
OptiPlex SX270 http://support.dell.com/support/edocs/systems/opsx270/en/ug/solve.htm
OptiPlex SX280 http://support.dell.com/support/edocs/systems/opsx280/en/ug/tools.htm
OptiPlex XMT575, 590, 5100, 5120, and 5133 http://support.dell.com/support/edocs/dta/586xmt/00000038.htm
PowerEdge 300 http://support.dell.com/support/edocs/systems/snewt/en/sm/beep.htm
PowerEdge 350 http://support.dell.com/support/edocs/systems/spe350/en/sm/beep.htm
PowerEdge 770N http://support.dell.com/support/edocs/stor-sys/spv77xn/en/sm770ne/beep.htm
PowerEdge 2500 and 2500SC http://support.dell.com/support/edocs/systems/pe2500sc/en/sm/beep.htm
PowerEdge 2600 http://support.dell.com/support/edocs/systems/pe2600/en/sm/beep.htm
PowerEdge 2650 http://support.dell.com/support/edocs/systems/pe2650/en/sm/beep.htm
PowerEdge 1600SC http://support.dell.com/support/topics/global.aspx/support/kb/en/document?dn=1088651
PowerEdge 4400 http://support.dell.com/support/edocs/systems/pe4400/en/sm/messages.htm
PowerEdge 6400 http://support.dell.com/support/edocs/systems/pe6400/en/sm/beep.htm
PowerEdge 6650 http://support.dell.com/support/edocs/systems/pe6650/en/sm/beep.htm
PowerEdge 6660 http://support.dell.com/support/edocs/systems/pe6600/en/sm/beep.htm
PowerEdge 7150 http://support.dell.com/support/edocs/systems/pe7150/en/sm/beep.htm
PowerEdge 7250 http://support.dell.com/support/edocs/systems/pe7250/en/PG/g4277aa0.htm
PowerEdge 8450 http://support.dell.com/support/edocs/systems/sdiam/en/sm/beep.htm
PowerVault 735N http://support.dell.com/support/edocs/stor-sys/spv735n/en/sm/beep.htm
PowerVault 750N http://support.dell.com/support/edocs/stor-sys/spv75xn/en/sm750Ne/beep.htm
PowerVault 755N http://support.dell.com/support/edocs/stor-sys/spv75xn/en/sm755Ne/beep.htm
PowerVault 775N http://support.dell.com/support/edocs/stor-sys/spv77xn/en/it775ne/7p048c20.htm
Precision Workstation 220 http://support.dell.com/support/edocs/systems/ws220/en/ug/messages.htm
Precision Workstation 330 http://support.dell.com/support/edocs/systems/ws330/en/ug/html/solving.htm
Precision Workstation 340 http://support.dell.com/support/edocs/systems/ws340/en/ug/codes.htm
Precision Workstation 400 http://support.dell.com/support/edocs/systems/dtor/messages.htm
Precision Workstation 420 http://support.dell.com/support/edocs/systems/ws420/en/ug/messages.htm
Precision Workstation 470 and 670 http://support.dell.com/support/edocs/systems/ws670/en/ug/advtrbl.htm
Precision Workstation 530 http://support.dell.com/support/edocs/systems/ws530/en/ug/html/2codes.htm
Precision Workstation 620 http://support.dell.com/support/edocs/systems/ws620/en/ug/messages.htm
Precision Workstation 730 http://support.dell.com/support/edocs/systems/ws730/ug/messages.htm
SmartStep 150D http://support.dell.com/support/edocs/systems/smrt150d/codes.htm
Know The BIOS Beep Code List -All Desktops
When you power on your computer, the motherboard's basic input/output system (BIOS) first detects the computer's internal hardware configuration and then performs the power-on self-test (POST). The POST executes several diagnostic tests that check the basic functionality of the power supply, motherboard, CPU, I/O Bus Controller, RAM, keyboard, and video components. If the computer passes the POST, it will usually return a single short beep or two short beeps, depending on the BIOS manufacturer. If the POST detects any problems, it will halt the boot process and return an error message either visually on the screen and/or audibly through a series of beeps.
Unfortunately, there is no official standard for beep codes. Depending on the BIOS manufacturer, a keyboard controller failure could be three, four, five, or six beeps. While this document lists common BIOS manufacturer beep codes, you should always consult your motherboard's documentation, the manufacturer's Web site, and the BIOS manufacturer's Web site for a definitive beep code list for your particular BIOS. The information contained in the following lists was gathered from various BIOS manufacturers' Web sites.
| AMI BIOS beep codes | ||
| Number of beeps | Problem description | Troubleshooting recommendation |
| 1 | Memory refresh timer error | Reseat memory or replace with known good chips. |
| 2 | Parity error | Reseat memory or replace with known good chips. |
| 3 | Base 64K memory read/write test failure | Reseat memory or replace with known good chips. |
| 4 | Motherboard timer not operational | Repair/replace motherboard. |
| 5 | Processor error | Repair/replace motherboard. |
| 6 | 8042—gate A20 failure/Keyboard controller BAT test error | Reseat keyboard controller chip, replace keyboard controller chip, check for a keyboard fuse, or try a different keyboard. |
| 7 | Processor exception interrupt error | Repair/replace motherboard. |
| 8 | Display memory read/write failure | Replace video card or video card memory. |
| 9 | ROM checksum error/Faulty BIOS chips | Replace chips or motherboard. |
| 10 | CMOS shutdown register read/write error | Repair/replace motherboard. |
| 11 | Cache memory bad | Repair/replace motherboard. |
| AwardBIOS beep codes | ||
| Number of beeps | Problem description | Troubleshooting recommendation |
| 1 long & 2 short | Video error | Check the video card. |
| Any other beeps | RAM problem | Reseat the RAM or replace with known good chips. |
| PhoenixBIOS beep codes http://www.phoenix.com/NR/rdonlyres/81E6C43C-93BD-4097-A9C4-62F05AAD6025/0/biospostcode.pdf | ||
| Unfortunately, PhoenixBIOS beep codes are significantly more complicated than other BIOS manufacturers. Instead of a single beep code set, PhoenixBIOS codes consist of a series of beep code sets separated by a short pause. Older Phoenix BIOS Plus and PhoenixBIOS 1.x systems used a series of three sets, while the PhoenixBIOS 4.x systems use a series of four sets. The codes listed below are only some of the more than 100 codes for the PhoenixBIOS 4.x. For a complete list of Phoenix BIOS POST task routines and beep codes, please visit their Web site or review your motherboard's documentation. | ||
| Number of beeps | POST routine description/problem | Troubleshooting recommendation |
| 1 | One short beep before boot | Normal operation |
| 1-1-1-3 | Verify real mode | A problem exists with the CPU and/or motherboard. Check and replace if necessary. |
| 1-1-2-1 | Get CPU type | A problem exists with the CPU and/or motherboard. Check and replace if necessary. |
| 1-1-2-3 | Initialize system hardware | A problem exists with the motherboard. Check and replace if necessary. |
| 1-1-3-1 | Initialize chipset with initial POST values | A problem exists with the motherboard. Check and replace if necessary. |
| 1-1-3-2 | Set IN POST flag | A problem exists with the motherboard. Check and replace if necessary. |
| 1-1-3-3 | Initialize CPU registers | A problem exists with the CPU and/or motherboard. Check and replace if necessary. |
| 1-1-4-3 | Initialize I/O component | A problem exists with the I/O port hardware or a device connected to an I/O port. It could also be an expansion device in the PC or the motherboard. |
| 1-2-2-1 | Initialize keyboard controller | An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard. |
| 1-2-2-3 | BIOS ROM checksum | Replace either the BIOS ROM chip or the motherboard. |
| 1-2-3-3 | 8237 DMA controller initialization | Check the motherboard and any expansion cards that use DMA. |
| 1-3-1-1 | Test DRAM refresh | Check the first bank of memory and the motherboard. |
| 1-3-1-3 | Test 8742 keyboard controller | An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard. |
| 1-3-4-1 | RAM failure on line xxxx | Check the first bank of memory and the motherboard. |
| 1-3-4-3 | RAM failure on data bits xxxx of low byte memory bus | Check the first bank of memory and the motherboard. |
| 2-1-3-1 | Check video configuration against CMOS | Check the video card or video card memory. |
| 2-1-3-2 | Initialize PCI bus and devices | A problem exists with the I/O port hardware or a device connected to an I/O port. It could also be an expansion device in the PC or the motherboard. |
| 2-2-1-3 | Test keyboard | An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard. |
| 2-2-3-1 | Test for unexpected interrupts | Check for a faulty motherboard or expansion card. |
| 3-1-2-1 | Detect and install external parallel ports | A problem exists with the I/O port hardware or a device connected to an I/O port. It could also be an expansion device in the PC or the motherboard. |
| 3-1-4-1 | Initialize floppy controller | Check your hard drive(s), floppy drive(s), and motherboard. |
| 3-2-1-1 | Initialize hard-disk controllers | Check your hard drive(s), floppy drive(s), and motherboard. |
| 3-2-1-2 | Initialize local-bus hard-disk controllers | Check your hard drive(s), floppy drive(s), and motherboard. |
| 3-3-1-1 | Set time of day | Check the motherboard's real-time clock (RTC). |
| 4-2-4-3 | Keyboard controller failure | An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard. |
| Compaq (Hewlett-Packard) | |
| Because Compaq uses a variety of motherboards and BIOSs, their computers use a variety of beep codes. Instead of listing each model's beep codes, links are provided to support documentation for several popular Compaq desktops. Note: Hewlett-Packard and Compaq merged in 2002 and the new company dropped the Compaq name from all but a few consumer product lines--such as Presario desktops and notebooks. Official Compaq support documentation is difficult to find on HPs Web site. | |
| Model | System codes and messages link |
| Business Desktop d330 and d530 | http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00274415 |
| Multiple Models | |
